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# Demand API Reference
Complete API reference for the LocalGreenChain Demand Forecasting system.
## Overview
The Demand API enables demand-driven agriculture by:
- Capturing consumer preferences
- Aggregating regional demand signals
- Generating planting recommendations
- Matching supply with demand
---
## Consumer Preferences
### Register Preferences
```http
POST /api/demand/preferences
Content-Type: application/json
{
"consumerId": "consumer-123",
"location": {
"latitude": 40.7128,
"longitude": -74.0060,
"maxDeliveryRadiusKm": 25,
"city": "Brooklyn",
"region": "New York"
},
"dietaryType": ["vegetarian"],
"allergies": ["peanuts"],
"dislikes": ["cilantro"],
"preferredCategories": [
"leafy_greens",
"herbs",
"nightshades"
],
"preferredItems": [
{
"produceType": "tomato",
"category": "nightshades",
"priority": "must_have",
"weeklyQuantity": 2,
"unit": "kg",
"seasonalOnly": true
},
{
"produceType": "basil",
"category": "herbs",
"priority": "preferred",
"weeklyQuantity": 0.1
}
],
"certificationPreferences": ["organic", "local"],
"freshnessImportance": 5,
"priceImportance": 3,
"sustainabilityImportance": 5,
"deliveryPreferences": {
"method": ["home_delivery", "farmers_market"],
"frequency": "weekly",
"preferredDays": ["saturday"]
},
"householdSize": 4,
"weeklyBudget": 75,
"currency": "USD"
}
```
Response:
```json
{
"success": true,
"data": {
"consumerId": "consumer-123",
"createdAt": "2024-06-01T10:00:00Z",
"updatedAt": "2024-06-01T10:00:00Z"
}
}
```
### Get Preferences
```http
GET /api/demand/preferences/{consumerId}
```
### Update Preferences
```http
PUT /api/demand/preferences/{consumerId}
Content-Type: application/json
{
"preferredItems": [...]
}
```
---
## Demand Signals
### Generate Demand Signal
Aggregate demand for a region:
```http
POST /api/demand/signal
Content-Type: application/json
{
"centerLat": 40.7128,
"centerLon": -74.0060,
"radiusKm": 25,
"regionName": "Brooklyn",
"season": "summer"
}
```
Response:
```json
{
"success": true,
"data": {
"id": "demand-abc123",
"timestamp": "2024-06-01T10:00:00Z",
"region": {
"centerLat": 40.7128,
"centerLon": -74.0060,
"radiusKm": 25,
"name": "Brooklyn"
},
"periodStart": "2024-06-01T00:00:00Z",
"periodEnd": "2024-06-08T00:00:00Z",
"seasonalPeriod": "summer",
"demandItems": [
{
"produceType": "tomato",
"category": "nightshades",
"weeklyDemandKg": 180,
"monthlyDemandKg": 720,
"consumerCount": 95,
"aggregatePriority": 8,
"urgency": "this_week",
"preferredCertifications": ["organic"],
"averageWillingPrice": 4.50,
"priceUnit": "per_kg",
"inSeason": true,
"matchedSupply": 60,
"matchedGrowers": 5,
"gapKg": 120
}
],
"totalConsumers": 150,
"totalWeeklyDemandKg": 450,
"confidenceLevel": 85,
"currentSupplyKg": 180,
"supplyGapKg": 270,
"supplyStatus": "shortage"
}
}
```
### Get Demand Signal
```http
GET /api/demand/signal/{signalId}
```
### Query Demand Signals
```http
GET /api/demand/signal?lat=40.7128&lon=-74.0060&radius=50&season=summer
```
---
## Planting Recommendations
### Get Recommendations
```http
GET /api/demand/recommendations
?growerId=grower-123
&lat=40.7128
&lon=-74.0060
&deliveryRadiusKm=50
&availableSpaceSqm=500
&season=summer
```
Response:
```json
{
"success": true,
"data": {
"recommendations": [
{
"id": "rec-abc123",
"timestamp": "2024-06-01T10:00:00Z",
"growerId": "grower-123",
"produceType": "tomato",
"variety": null,
"category": "nightshades",
"recommendedQuantity": 200,
"quantityUnit": "sqm",
"expectedYieldKg": 1600,
"yieldConfidence": 75,
"plantByDate": "2024-06-05T00:00:00Z",
"expectedHarvestStart": "2024-08-15T00:00:00Z",
"expectedHarvestEnd": "2024-09-05T00:00:00Z",
"growingDays": 80,
"projectedDemandKg": 480,
"projectedPricePerKg": 4.50,
"projectedRevenue": 7200,
"marketConfidence": 85,
"riskFactors": [
{
"type": "weather",
"severity": "medium",
"description": "Single season crop with weather sensitivity",
"mitigationSuggestion": "Consider greenhouse growing"
}
],
"overallRisk": "medium",
"demandSignalIds": ["demand-abc123"],
"explanation": "Based on 1 demand signal showing 120kg weekly gap..."
}
]
}
}
```
---
## Demand Forecasts
### Get Forecast
```http
GET /api/demand/forecast
?region=Brooklyn
&weeks=12
```
Response:
```json
{
"success": true,
"data": {
"id": "forecast-abc123",
"generatedAt": "2024-06-01T10:00:00Z",
"region": "Brooklyn",
"forecastPeriod": {
"start": "2024-06-01T00:00:00Z",
"end": "2024-08-24T00:00:00Z"
},
"forecasts": [
{
"produceType": "tomato",
"category": "nightshades",
"predictedDemandKg": 2400,
"confidenceInterval": {
"low": 1680,
"high": 3120
},
"confidence": 75,
"trend": "increasing",
"trendStrength": 65,
"seasonalFactor": 1.2,
"predictedPricePerKg": 4.50,
"factors": [
{
"name": "Seasonal adjustment",
"type": "seasonal",
"impact": 20,
"description": "In season - higher demand expected"
}
]
}
],
"modelVersion": "1.0.0",
"dataPointsUsed": 45,
"lastTrainingDate": "2024-06-01T00:00:00Z"
}
}
```
---
## Supply Commitments
### Register Supply
```http
POST /api/demand/supply
Content-Type: application/json
{
"growerId": "grower-123",
"produceType": "tomato",
"variety": "Cherokee Purple",
"committedQuantityKg": 400,
"availableFrom": "2024-08-01T00:00:00Z",
"availableUntil": "2024-09-30T00:00:00Z",
"pricePerKg": 4.50,
"currency": "USD",
"minimumOrderKg": 2,
"bulkDiscountThreshold": 10,
"bulkDiscountPercent": 10,
"certifications": ["organic"],
"freshnessGuaranteeHours": 24,
"deliveryRadiusKm": 50,
"deliveryMethods": ["grower_delivery", "farmers_market"]
}
```
Response:
```json
{
"success": true,
"data": {
"id": "supply-abc123",
"status": "available",
"remainingKg": 400
}
}
```
### Get Supply Commitment
```http
GET /api/demand/supply/{supplyId}
```
### Update Supply
```http
PUT /api/demand/supply/{supplyId}
Content-Type: application/json
{
"remainingKg": 350,
"status": "partially_committed"
}
```
---
## Market Matching
### Create Match
```http
POST /api/demand/match
Content-Type: application/json
{
"demandSignalId": "demand-abc123",
"supplyCommitmentId": "supply-abc123",
"consumerId": "consumer-123",
"growerId": "grower-123",
"produceType": "tomato",
"matchedQuantityKg": 2,
"agreedPricePerKg": 4.50,
"totalPrice": 9.00,
"currency": "USD",
"deliveryDate": "2024-08-03T00:00:00Z",
"deliveryMethod": "home_delivery",
"deliveryLocation": {
"latitude": 40.7128,
"longitude": -74.0060,
"address": "123 Main St, Brooklyn, NY"
}
}
```
Response:
```json
{
"success": true,
"data": {
"id": "match-abc123",
"status": "pending"
}
}
```
### Update Match Status
```http
PUT /api/demand/match/{matchId}
Content-Type: application/json
{
"status": "confirmed"
}
```
---
## Enums
### Priority Levels
```typescript
type Priority = 'must_have' | 'preferred' | 'nice_to_have' | 'occasional';
```
### Produce Categories
```typescript
type ProduceCategory =
| 'leafy_greens' | 'root_vegetables' | 'nightshades'
| 'brassicas' | 'alliums' | 'legumes' | 'squash'
| 'herbs' | 'microgreens' | 'sprouts' | 'mushrooms'
| 'fruits' | 'berries' | 'citrus' | 'tree_fruits'
| 'melons' | 'edible_flowers';
```
### Urgency Levels
```typescript
type Urgency = 'immediate' | 'this_week' | 'this_month' | 'next_season';
```
### Supply Status
```typescript
type SupplyStatus = 'surplus' | 'balanced' | 'shortage' | 'critical';
```
### Match Status
```typescript
type MatchStatus = 'pending' | 'confirmed' | 'in_transit' | 'delivered' | 'completed' | 'cancelled';
```

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# REST API Reference
Complete API reference for LocalGreenChain.
## Base URL
```
Development: http://localhost:3001/api
Production: https://api.localgreenchain.org/api
```
## Authentication
Most endpoints require authentication via API key or session token:
```http
Authorization: Bearer <your-api-token>
```
Or via cookie for web sessions.
## Response Format
All responses follow this structure:
```json
{
"success": true,
"data": { ... },
"error": null
}
```
Error responses:
```json
{
"success": false,
"data": null,
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid plant ID format"
}
}
```
## HTTP Status Codes
| Code | Description |
|------|-------------|
| 200 | Success |
| 201 | Created |
| 400 | Bad Request |
| 401 | Unauthorized |
| 403 | Forbidden |
| 404 | Not Found |
| 500 | Internal Server Error |
---
## Plants API
### Register Plant
```http
POST /api/plants/register
Content-Type: application/json
{
"commonName": "Tomato",
"scientificName": "Solanum lycopersicum",
"location": {
"latitude": 40.7128,
"longitude": -74.0060,
"city": "New York",
"country": "USA"
},
"owner": {
"id": "user-123",
"name": "John Doe"
}
}
```
Response:
```json
{
"success": true,
"data": {
"id": "plant-abc123",
"blockHash": "0x1234...",
"timestamp": "2024-06-01T10:00:00Z"
}
}
```
### Clone Plant
```http
POST /api/plants/clone
Content-Type: application/json
{
"parentPlantId": "plant-abc123",
"propagationType": "clone",
"newPlant": {
"location": { ... },
"owner": { ... }
}
}
```
### Get Plant by ID
```http
GET /api/plants/{plantId}
```
### Get Plant Lineage
```http
GET /api/plants/lineage/{plantId}
```
### Find Nearby Plants
```http
GET /api/plants/nearby?lat=40.7128&lon=-74.0060&radius=50
```
Query Parameters:
- `lat` (required): Latitude
- `lon` (required): Longitude
- `radius` (optional): Search radius in km (default: 50)
### Search Plants
```http
GET /api/plants/search?q=tomato&type=species
```
Query Parameters:
- `q` (required): Search query
- `type` (optional): `species`, `location`, `owner`
### Get Network Statistics
```http
GET /api/plants/network
```
Response:
```json
{
"success": true,
"data": {
"totalPlants": 15234,
"chainLength": 15235,
"difficulty": 3,
"activeGrowers": 892,
"countriesRepresented": 45
}
}
```
---
## Transport API
See [Transport API Reference](./transport-api.md) for full details.
### Key Endpoints
```http
POST /api/transport/seed-acquisition
POST /api/transport/planting
POST /api/transport/growing
POST /api/transport/harvest
POST /api/transport/distribution
POST /api/transport/seed-saving
POST /api/transport/seed-sharing
GET /api/transport/journey/{plantId}
GET /api/transport/footprint/{userId}
GET /api/transport/verify/{blockHash}
GET /api/transport/qr/{id}
```
---
## Demand API
See [Demand API Reference](./demand-api.md) for full details.
### Key Endpoints
```http
POST /api/demand/preferences
GET /api/demand/preferences/{consumerId}
POST /api/demand/signal
GET /api/demand/recommendations
GET /api/demand/forecast
POST /api/demand/supply
POST /api/demand/match
```
---
## Vertical Farming API
See [Vertical Farming API Reference](./vertical-farming-api.md) for full details.
### Key Endpoints
```http
POST /api/vertical-farm/register
GET /api/vertical-farm/{farmId}
GET /api/vertical-farm/{farmId}/zones
POST /api/vertical-farm/{farmId}/zones
GET /api/vertical-farm/{farmId}/analytics
POST /api/vertical-farm/batch/start
GET /api/vertical-farm/batch/{batchId}
PUT /api/vertical-farm/batch/{batchId}/environment
POST /api/vertical-farm/batch/{batchId}/harvest
GET /api/vertical-farm/recipes
```
---
## Error Codes
| Code | Description |
|------|-------------|
| `VALIDATION_ERROR` | Input validation failed |
| `NOT_FOUND` | Resource not found |
| `UNAUTHORIZED` | Authentication required |
| `FORBIDDEN` | Insufficient permissions |
| `CHAIN_ERROR` | Blockchain operation failed |
| `DUPLICATE` | Resource already exists |
| `RATE_LIMITED` | Too many requests |
---
## Rate Limiting
Default limits:
- 100 requests per minute per IP
- 1000 requests per hour per user
Headers returned:
```http
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 95
X-RateLimit-Reset: 1625097600
```
---
## Pagination
List endpoints support pagination:
```http
GET /api/plants/search?q=tomato&page=1&limit=20
```
Response includes:
```json
{
"data": [...],
"pagination": {
"page": 1,
"limit": 20,
"total": 150,
"totalPages": 8
}
}
```
---
## Webhooks
Register webhooks for events:
```http
POST /api/webhooks
Content-Type: application/json
{
"url": "https://yourdomain.com/webhook",
"events": ["plant.registered", "transport.completed"],
"secret": "your-webhook-secret"
}
```
Webhook payload:
```json
{
"event": "plant.registered",
"timestamp": "2024-06-01T10:00:00Z",
"data": {
"plantId": "plant-abc123",
"commonName": "Tomato"
},
"signature": "sha256=..."
}
```

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# Vertical Farming API Reference
Complete API reference for the LocalGreenChain Vertical Farming system.
## Overview
The Vertical Farming API enables:
- Farm registration and management
- Zone configuration and monitoring
- Crop batch lifecycle management
- Environment tracking and alerts
- Analytics and reporting
---
## Farm Management
### Register Farm
```http
POST /api/vertical-farm/register
Content-Type: application/json
{
"name": "Urban Greens VF",
"ownerId": "owner-123",
"location": {
"latitude": 40.7128,
"longitude": -74.0060,
"address": "123 Industrial Blvd",
"city": "Brooklyn",
"country": "USA",
"timezone": "America/New_York"
},
"specs": {
"totalAreaSqm": 500,
"growingAreaSqm": 400,
"numberOfLevels": 4,
"ceilingHeightM": 4,
"totalGrowingPositions": 5000,
"currentActivePlants": 0,
"powerCapacityKw": 150,
"waterStorageL": 10000,
"backupPowerHours": 24,
"certifications": ["gap", "local_food_safety"],
"buildingType": "warehouse",
"insulation": "high_efficiency"
},
"automationLevel": "semi_automated"
}
```
Response:
```json
{
"success": true,
"data": {
"id": "farm-abc123",
"name": "Urban Greens VF",
"status": "operational",
"createdAt": "2024-06-01T10:00:00Z"
}
}
```
### Get Farm
```http
GET /api/vertical-farm/{farmId}
```
### Update Farm
```http
PUT /api/vertical-farm/{farmId}
Content-Type: application/json
{
"status": "maintenance",
"specs": {
"currentActivePlants": 4500
}
}
```
### List User Farms
```http
GET /api/vertical-farm?ownerId=owner-123
```
---
## Zone Management
### Create Zone
```http
POST /api/vertical-farm/{farmId}/zones
Content-Type: application/json
{
"name": "Zone A - Leafy Greens",
"level": 1,
"areaSqm": 100,
"lengthM": 20,
"widthM": 5,
"growingMethod": "NFT",
"plantPositions": 1200,
"environmentTargets": {
"temperatureC": { "min": 18, "max": 24, "target": 21 },
"humidityPercent": { "min": 55, "max": 75, "target": 65 },
"co2Ppm": { "min": 800, "max": 1400, "target": 1000 },
"lightPpfd": { "min": 200, "max": 400, "target": 300 },
"lightHours": 16,
"nutrientEc": { "min": 1.2, "max": 1.8, "target": 1.5 },
"nutrientPh": { "min": 5.5, "max": 6.5, "target": 6.0 },
"waterTempC": { "min": 18, "max": 22, "target": 20 }
}
}
```
Response:
```json
{
"success": true,
"data": {
"id": "zone-abc123",
"name": "Zone A - Leafy Greens",
"status": "empty"
}
}
```
### Get Zones
```http
GET /api/vertical-farm/{farmId}/zones
```
### Get Zone Details
```http
GET /api/vertical-farm/{farmId}/zones/{zoneId}
```
### Update Zone
```http
PUT /api/vertical-farm/{farmId}/zones/{zoneId}
Content-Type: application/json
{
"status": "preparing",
"environmentTargets": { ... }
}
```
---
## Growing Recipes
### List Recipes
```http
GET /api/vertical-farm/recipes
```
Response:
```json
{
"success": true,
"data": [
{
"id": "recipe-lettuce-butterhead",
"name": "Butterhead Lettuce - Fast Cycle",
"cropType": "lettuce",
"variety": "butterhead",
"version": "1.0",
"expectedDays": 35,
"expectedYieldGrams": 180,
"expectedYieldPerSqm": 4000,
"requirements": {
"positions": 1,
"zoneType": "NFT",
"minimumPpfd": 200,
"idealTemperatureC": 21
},
"source": "internal",
"rating": 4.5,
"timesUsed": 156
}
]
}
```
### Get Recipe Details
```http
GET /api/vertical-farm/recipes/{recipeId}
```
Response includes full stage definitions:
```json
{
"success": true,
"data": {
"id": "recipe-lettuce-butterhead",
"stages": [
{
"name": "Germination",
"daysStart": 0,
"daysEnd": 3,
"temperature": { "day": 20, "night": 18 },
"humidity": { "day": 80, "night": 85 },
"co2Ppm": 800,
"lightHours": 18,
"lightPpfd": 150,
"nutrientRecipeId": "nutrient-seedling",
"targetEc": 0.8,
"targetPh": 6.0,
"actions": []
}
]
}
}
```
### Add Custom Recipe
```http
POST /api/vertical-farm/recipes
Content-Type: application/json
{
"name": "Custom Lettuce - High Yield",
"cropType": "lettuce",
"variety": "romaine",
"stages": [ ... ],
"expectedDays": 42,
"expectedYieldGrams": 220
}
```
---
## Crop Batches
### Start Batch
```http
POST /api/vertical-farm/batch/start
Content-Type: application/json
{
"farmId": "farm-abc123",
"zoneId": "zone-abc123",
"recipeId": "recipe-lettuce-butterhead",
"seedBatchId": "seeds-lettuce-001",
"plantCount": 200
}
```
Response:
```json
{
"success": true,
"data": {
"id": "batch-abc123",
"farmId": "farm-abc123",
"zoneId": "zone-abc123",
"cropType": "lettuce",
"plantCount": 200,
"plantingDate": "2024-06-01T10:00:00Z",
"expectedHarvestDate": "2024-07-06T10:00:00Z",
"expectedYieldKg": 36,
"currentStage": "Germination",
"currentDay": 0,
"healthScore": 100,
"status": "germinating",
"plantIds": ["batch-abc123-plant-0", "..."]
}
}
```
### Get Batch
```http
GET /api/vertical-farm/batch/{batchId}
```
### List Batches
```http
GET /api/vertical-farm/batch?farmId=farm-abc123&status=growing
```
### Update Batch Progress
```http
POST /api/vertical-farm/batch/{batchId}/progress
```
This recalculates current day, stage, and updates environment targets.
---
## Environment Tracking
### Record Environment
```http
PUT /api/vertical-farm/batch/{batchId}/environment
Content-Type: application/json
{
"timestamp": "2024-06-15T12:00:00Z",
"temperatureC": 21.5,
"humidityPercent": 68,
"co2Ppm": 1050,
"vpd": 0.85,
"ppfd": 295,
"dli": 17.0,
"waterTempC": 19.5,
"ec": 1.55,
"ph": 6.1,
"dissolvedOxygenPpm": 8.2,
"airflowMs": 0.5
}
```
Response includes any triggered alerts:
```json
{
"success": true,
"data": {
"recorded": true,
"alerts": [
{
"parameter": "temperature",
"type": "high",
"value": 21.5,
"threshold": 21,
"timestamp": "2024-06-15T12:00:00Z",
"acknowledged": false
}
],
"healthScore": 99
}
}
```
### Get Environment History
```http
GET /api/vertical-farm/batch/{batchId}/environment
?from=2024-06-01T00:00:00Z
&to=2024-06-15T00:00:00Z
```
### Acknowledge Alert
```http
POST /api/vertical-farm/batch/{batchId}/alerts/{alertId}/acknowledge
```
---
## Harvest
### Complete Harvest
```http
POST /api/vertical-farm/batch/{batchId}/harvest
Content-Type: application/json
{
"actualYieldKg": 38.5,
"qualityGrade": "A",
"notes": "Excellent crop, exceeded expectations"
}
```
Response:
```json
{
"success": true,
"data": {
"batchId": "batch-abc123",
"status": "completed",
"actualYieldKg": 38.5,
"expectedYieldKg": 36,
"yieldVariance": 6.9,
"qualityGrade": "A",
"actualHarvestDate": "2024-07-06T14:00:00Z",
"cycleLength": 35
}
}
```
---
## Analytics
### Get Farm Analytics
```http
GET /api/vertical-farm/{farmId}/analytics?period=30
```
Query Parameters:
- `period`: Number of days to analyze (default: 30)
Response:
```json
{
"success": true,
"data": {
"farmId": "farm-abc123",
"generatedAt": "2024-07-01T10:00:00Z",
"period": "30 days",
"production": {
"totalYieldKg": 450.5,
"yieldPerSqmPerYear": 4107.5,
"cropCyclesCompleted": 12,
"averageCyclesDays": 28.5
},
"quality": {
"averageQualityScore": 92.3,
"gradeAPercent": 85,
"wastagePercent": 4.5
},
"efficiency": {
"cropSuccessRate": 98,
"spaceUtilization": 88,
"laborHoursPerKg": 0.3
},
"financial": {
"revenueUsd": 9010,
"costUsd": 4505,
"profitMarginPercent": 50,
"revenuePerSqm": 22.53
},
"environmental": {
"carbonFootprintKgPerKg": 0.28,
"waterUseLPerKg": 4.5,
"energyUseKwhPerKg": 15.2
},
"topCropsByYield": [
{ "crop": "lettuce", "yieldKg": 250.2 },
{ "crop": "basil", "yieldKg": 120.5 }
],
"topCropsByRevenue": [
{ "crop": "basil", "revenueUsd": 4820 },
{ "crop": "lettuce", "revenueUsd": 3750 }
],
"topCropsByEfficiency": [
{ "crop": "microgreens", "efficiencyScore": 95 },
{ "crop": "lettuce", "efficiencyScore": 92 }
]
}
}
```
---
## Enums
### Farm Status
```typescript
type FarmStatus = 'offline' | 'starting' | 'operational' | 'maintenance' | 'emergency';
```
### Zone Status
```typescript
type ZoneStatus = 'empty' | 'preparing' | 'planted' | 'growing' | 'harvesting' | 'cleaning';
```
### Growing Method
```typescript
type GrowingMethod = 'NFT' | 'DWC' | 'ebb_flow' | 'aeroponics' | 'vertical_towers' | 'rack_system';
```
### Batch Status
```typescript
type BatchStatus = 'germinating' | 'growing' | 'ready' | 'harvesting' | 'completed' | 'failed';
```
### Alert Type
```typescript
type AlertType = 'low' | 'high' | 'critical_low' | 'critical_high' | 'sensor_fault';
```
### Quality Grade
```typescript
type QualityGrade = 'A' | 'B' | 'C' | 'processing';
```

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# Data Flow Architecture
Understanding how data flows through the LocalGreenChain system.
## System Overview
```
┌─────────────────────────────────────────────────────────────────────┐
│ LOCALGREENCHAIN DATA FLOW │
├─────────────────────────────────────────────────────────────────────┤
│ │
│ INPUTS PROCESSING OUTPUTS │
│ ────── ────────── ─────── │
│ │
│ ┌─────────┐ ┌─────────────┐ ┌──────────┐ │
│ │Consumer │──preferences─│ Demand │──signals───→│ Planting │ │
│ │Prefs │ │ Forecaster │ │Recommends│ │
│ └─────────┘ └─────────────┘ └──────────┘ │
│ │ │
│ ┌─────────┐ ┌──────▼──────┐ ┌──────────┐ │
│ │Transport│──events─────→│ Transport │──journeys──→│ QR │ │
│ │Events │ │ Chain │ │ Codes │ │
│ └─────────┘ └─────────────┘ └──────────┘ │
│ │ │
│ ┌─────────┐ ┌──────▼──────┐ ┌──────────┐ │
│ │Vertical │──readings───→│ VF │──analytics─→│Dashboard │ │
│ │Farm IoT │ │ Controller │ │ │ │
│ └─────────┘ └─────────────┘ └──────────┘ │
│ │ │
│ ┌──────▼──────┐ │
│ │ Plant │ │
│ │ Blockchain │ │
│ └─────────────┘ │
│ │ │
│ ┌──────▼──────┐ │
│ │ JSON/DB │ │
│ │ Storage │ │
│ └─────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────┘
```
## Data Flow Patterns
### 1. Consumer Preference Flow
```
Consumer → Web UI → API → DemandForecaster → Storage
│ │
│ ▼
│ Aggregation
│ │
│ ▼
└────────────────── Demand Signal
│
▼
Planting Recommendations
│
▼
Grower Dashboard
```
### 2. Transport Event Flow
```
Grower/Transporter
│
▼
API Request
│
├──→ Validation
│
├──→ Distance Calculation (Haversine)
│
├──→ Carbon Calculation
│
├──→ TransportChain.recordEvent()
│ │
│ ├──→ Create Block
│ ├──→ Mine Block (PoW)
│ ├──→ Add to Chain
│ └──→ Index Event
│
└──→ Response with Block Hash
```
### 3. Vertical Farm Data Flow
```
IoT Sensors
│
├──→ Temperature
├──→ Humidity
├──→ CO2
├──→ Light
├──→ EC/pH
│
▼
API Endpoint (/api/vertical-farm/batch/{id}/environment)
│
▼
VerticalFarmController.recordEnvironment()
│
├──→ Compare to Targets
│ │
│ ▼
│ Generate Alerts (if out of range)
│
├──→ Update Batch Health Score
│
└──→ Store in Environment Log
│
▼
Analytics Generation
```
## Data Transformations
### Preference → Demand Signal
```typescript
// Input: Individual preferences
const preferences: ConsumerPreference[] = [
{ consumerId: "A", preferredItems: [{ produceType: "tomato", weeklyQuantity: 2 }] },
{ consumerId: "B", preferredItems: [{ produceType: "tomato", weeklyQuantity: 1 }] },
{ consumerId: "C", preferredItems: [{ produceType: "tomato", weeklyQuantity: 3 }] }
];
// Transformation: Aggregate by region
// Output: Demand Signal
const signal: DemandSignal = {
region: { name: "Brooklyn", radiusKm: 25 },
demandItems: [
{
produceType: "tomato",
weeklyDemandKg: 6, // Sum of individual demands
consumerCount: 3,
aggregatePriority: 8.5 // Weighted average
}
]
};
```
### Transport Events → Plant Journey
```typescript
// Input: Individual events
const events: TransportEvent[] = [
{ eventType: "seed_acquisition", plantId: "P1", distanceKm: 50 },
{ eventType: "planting", plantId: "P1", distanceKm: 0 },
{ eventType: "growing_transport", plantId: "P1", distanceKm: 5 },
{ eventType: "harvest", plantId: "P1", distanceKm: 0 },
{ eventType: "distribution", plantId: "P1", distanceKm: 20 }
];
// Transformation: Aggregate for plant
// Output: Plant Journey
const journey: PlantJourney = {
plantId: "P1",
events: events,
totalFoodMiles: 75, // Sum of distances
totalCarbonKg: 3.5, // Sum of carbon
currentStage: "post_harvest"
};
```
## Storage Architecture
### File-Based Storage (Default)
```
data/
├── plantchain.json # Main plant blockchain
│ └── { difficulty, chain: Block[] }
│
├── transport.json # Transport chain
│ └── { difficulty, chain: TransportBlock[] }
│
├── demand.json # Demand data
│ └── {
│ preferences: Map<id, Preference>,
│ signals: Map<id, Signal>,
│ supply: Map<id, Supply>,
│ matches: Map<id, Match>
│ }
│
└── vertical-farms.json # VF data
└── {
farms: Map<id, Farm>,
recipes: Map<id, Recipe>,
batches: Map<id, Batch>
}
```
### Database Storage (Production)
```sql
-- PostgreSQL schema (conceptual)
CREATE TABLE blocks (
index INTEGER PRIMARY KEY,
timestamp TIMESTAMPTZ,
data JSONB,
previous_hash VARCHAR(64),
hash VARCHAR(64),
nonce INTEGER
);
CREATE TABLE plants (
id VARCHAR(36) PRIMARY KEY,
common_name VARCHAR(255),
scientific_name VARCHAR(255),
location GEOGRAPHY(POINT),
owner_id VARCHAR(36),
generation INTEGER,
parent_id VARCHAR(36),
block_index INTEGER REFERENCES blocks(index)
);
CREATE TABLE transport_events (
id VARCHAR(36) PRIMARY KEY,
event_type VARCHAR(50),
plant_ids VARCHAR(36)[],
from_location GEOGRAPHY(POINT),
to_location GEOGRAPHY(POINT),
distance_km DECIMAL,
carbon_kg DECIMAL,
block_index INTEGER
);
```
## Caching Strategy
### Cache Layers
```
Request
│
▼
┌─────────────────┐
│ API Response │ TTL: 60s (dynamic data)
│ Cache │ TTL: 3600s (static data)
└────────┬────────┘
│ miss
▼
┌─────────────────┐
│ Query Cache │ Pre-computed queries
│ (Redis) │ Hot data in memory
└────────┬────────┘
│ miss
▼
┌─────────────────┐
│ Data Store │ JSON files or Database
│ │
└─────────────────┘
```
### Cached Data
| Data Type | Cache TTL | Reason |
|-----------|-----------|--------|
| Plant details | 1 hour | Rarely changes |
| Transport journey | 5 minutes | Updates on events |
| Demand signals | 1 hour | Recalculated periodically |
| Farm analytics | 15 minutes | Computed from batches |
| Recipes | 24 hours | Static data |
## Event-Driven Updates
### Event Types
```typescript
type SystemEvent =
| { type: "plant.registered"; plantId: string }
| { type: "transport.recorded"; blockHash: string }
| { type: "batch.started"; batchId: string }
| { type: "alert.triggered"; zoneId: string; alert: EnvironmentAlert }
| { type: "harvest.completed"; batchId: string }
| { type: "supply.matched"; matchId: string };
```
### Event Flow
```
Event Source → Event Bus → Event Handlers
│
├──→ Cache Invalidation
├──→ Webhook Dispatch
├──→ Real-time UI Update
└──→ Analytics Update
```
## API Data Flow
### Request Lifecycle
```
Client Request
│
▼
┌─────────────┐
│ Router │ Match endpoint
└──────┬──────┘
│
▼
┌─────────────┐
│ Middleware │ Auth, validation, logging
└──────┬──────┘
│
▼
┌─────────────┐
│ Handler │ Business logic
└──────┬──────┘
│
├──→ Service Layer (Forecaster, Controller, Chain)
│
├──→ Data Layer (Storage, Cache)
│
▼
┌─────────────┐
│ Response │ Format JSON, headers
└──────┬──────┘
│
▼
Client Response
```
## Real-Time Data
### WebSocket Connections
```
Client ←──WebSocket──→ Server
│
├── Environment readings
├── Alert notifications
├── Batch progress updates
└── Demand signal changes
```
### Polling Fallback
```typescript
// If WebSocket unavailable
const POLL_INTERVALS = {
environment: 30_000, // 30 seconds
batchProgress: 60_000, // 1 minute
demandSignals: 300_000, // 5 minutes
analytics: 900_000 // 15 minutes
};
```
## Data Integrity
### Validation Points
1. **API Input** - Schema validation (JSON Schema/Zod)
2. **Business Logic** - Domain rules enforcement
3. **Blockchain** - Hash verification
4. **Storage** - Type checking
### Consistency Guarantees
| Operation | Guarantee |
|-----------|-----------|
| Block creation | Atomic (single file write) |
| Batch operations | Transaction-like (rollback on error) |
| Cross-chain refs | Eventually consistent |
| Cache updates | Best effort (can stale) |

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# Transport Tracking Architecture
Deep dive into the seed-to-seed transport tracking system.
## Architecture Overview
```
┌─────────────────────────────────────────────────────────────────────┐
│ TRANSPORT TRACKING SYSTEM │
├─────────────────────────────────────────────────────────────────────┤
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ TRANSPORT CHAIN │ │
│ │ │ │
│ │ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ │
│ │ │Genesis │→ │ Block 1 │→ │ Block 2 │→ │ Block N │ │ │
│ │ │ │ │ Seed │ │ Plant │ │ Harvest │ │ │
│ │ │ │ │ Acquire │ │ │ │ │ │ │
│ │ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │ │
│ │ │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │ │
│ ┌──────────────────┼──────────────────┐ │
│ ▼ ▼ ▼ │
│ ┌────────────────┐ ┌──────────────┐ ┌───────────────┐ │
│ │ Event Index │ │ Plant Index │ │ Batch Index │ │
│ │ (by event ID) │ │ (by plant ID)│ │ (by batch ID) │ │
│ └────────────────┘ └──────────────┘ └───────────────┘ │
│ │
│ ┌─────────────────────────────────────────────────────────────┐ │
│ │ SERVICES │ │
│ │ │ │
│ │ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ │
│ │ │Distance │ │ Carbon │ │ QR │ │ Journey │ │ │
│ │ │Calculator│ │Calculator│ │Generator│ │ Builder │ │ │
│ │ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │ │
│ │ │ │
│ └─────────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────────┘
```
## TransportChain Class
### Core Structure
```typescript
class TransportChain {
// Blockchain data
public chain: TransportBlock[];
public difficulty: number;
// Indexes for fast lookups
private eventIndex: Map<string, TransportBlock[]>;
private plantEvents: Map<string, TransportEvent[]>;
private batchEvents: Map<string, TransportEvent[]>;
// Core operations
recordEvent(event: TransportEvent): TransportBlock;
getPlantJourney(plantId: string): PlantJourney | null;
getEnvironmentalImpact(userId: string): EnvironmentalImpact;
generateQRData(plantId?: string, batchId?: string): TransportQRData;
isChainValid(): boolean;
}
```
### Block Creation Flow
```
Event Input
│
▼
┌─────────────────────┐
│ Calculate Distance │ (if not provided)
│ Haversine Formula │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Calculate Carbon │ (if not provided)
│ factor × distance │ × weight
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Create Block │
│ - index │
│ - timestamp │
│ - event data │
│ - previousHash │
│ - cumulative stats │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Mine Block │
│ Find nonce where │
│ hash starts with │
│ N zeros │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Add to Chain │
│ Update Indexes │
└──────────┬──────────┘
│
▼
Return Block
```
## Event Processing
### Event Type Handlers
Each event type extracts different IDs for indexing:
```typescript
function extractPlantIds(event: TransportEvent): string[] {
switch (event.eventType) {
case 'planting':
return event.plantIds;
case 'growing_transport':
return event.plantIds;
case 'harvest':
return event.plantIds;
case 'seed_saving':
return event.parentPlantIds;
default:
return [];
}
}
function extractBatchIds(event: TransportEvent): string[] {
switch (event.eventType) {
case 'seed_acquisition':
return [event.seedBatchId];
case 'planting':
return [event.seedBatchId];
case 'harvest':
const ids = [event.harvestBatchId];
if (event.seedBatchIdCreated) ids.push(event.seedBatchIdCreated);
return ids;
case 'processing':
return [...event.harvestBatchIds, event.processingBatchId];
case 'distribution':
case 'consumer_delivery':
return event.batchIds;
case 'seed_saving':
return [event.newSeedBatchId];
case 'seed_sharing':
return [event.seedBatchId];
default:
return [];
}
}
```
## Distance Calculation
### Haversine Formula
```typescript
static calculateDistance(
from: TransportLocation,
to: TransportLocation
): number {
const R = 6371; // Earth's radius in km
const dLat = toRadians(to.latitude - from.latitude);
const dLon = toRadians(to.longitude - from.longitude);
const a =
Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(toRadians(from.latitude)) *
Math.cos(toRadians(to.latitude)) *
Math.sin(dLon / 2) * Math.sin(dLon / 2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
return R * c; // Distance in kilometers
}
```
### Accuracy Notes
| Distance | Accuracy |
|----------|----------|
| < 10 km | ± 10 meters |
| 10-100 km | ± 100 meters |
| 100-1000 km | ± 1 km |
| > 1000 km | ± 10 km |
## Carbon Calculation
### Weight Estimation
```typescript
function estimateWeight(event: TransportEvent): number {
switch (event.eventType) {
case 'seed_acquisition':
case 'seed_saving':
case 'seed_sharing':
return 0.1; // Seeds are light
case 'planting':
return 0.5; // Seedlings
case 'growing_transport':
return 2; // Potted plants
case 'harvest':
return event.netWeight || 5;
case 'processing':
return event.outputWeight || 5;
case 'distribution':
case 'consumer_delivery':
return 5; // Default produce weight
default:
return 1;
}
}
```
### Carbon Formula
```typescript
function calculateCarbon(
method: TransportMethod,
distanceKm: number,
weightKg: number
): number {
const factor = CARBON_FACTORS[method] || 0.1;
return factor * distanceKm * weightKg;
}
```
## Journey Reconstruction
### Algorithm
```typescript
function getPlantJourney(plantId: string): PlantJourney | null {
// 1. Get all events for this plant
const events = plantEvents.get(plantId);
if (!events || events.length === 0) return null;
// 2. Sort by timestamp
const sorted = [...events].sort(
(a, b) => new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime()
);
// 3. Calculate totals
let totalFoodMiles = 0;
let totalCarbonKg = 0;
let daysInTransit = 0;
for (const event of sorted) {
totalFoodMiles += event.distanceKm;
totalCarbonKg += event.carbonFootprintKg;
daysInTransit += event.durationMinutes / (60 * 24);
}
// 4. Determine current stage
const currentStage = determineStage(sorted);
// 5. Find lineage info
const seedAcquisition = sorted.find(e => e.eventType === 'seed_acquisition');
const planting = sorted.find(e => e.eventType === 'planting');
// 6. Build journey object
return {
plantId,
seedBatchOrigin: seedAcquisition?.seedBatchId || planting?.seedBatchId,
currentCustodian: sorted[sorted.length - 1].receiverId,
currentLocation: sorted[sorted.length - 1].toLocation,
currentStage,
events: sorted,
totalFoodMiles,
totalCarbonKg,
daysInTransit: Math.round(daysInTransit),
daysGrowing: calculateGrowingDays(sorted),
generation: seedAcquisition?.generation || 0,
ancestorPlantIds: seedAcquisition?.parentPlantIds || [],
descendantSeedBatches: findDescendantSeeds(sorted)
};
}
```
## QR Code Generation
### Data Structure
```typescript
interface TransportQRData {
plantId?: string;
batchId?: string;
blockchainAddress: string; // First 42 chars of latest hash
quickLookupUrl: string; // Web URL for tracking
lineageHash: string; // SHA256 of all events (16 chars)
currentCustodian: string; // Current holder
lastEventType: TransportEventType;
lastEventTimestamp: string;
verificationCode: string; // Random 8-char code
}
```
### Generation Process
```
┌─────────────────────┐
│ Get events for │
│ plant/batch │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Calculate lineage │
│ hash (SHA256) │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Get blockchain │
│ address (latest │
│ block hash) │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Generate │
│ verification code │
└──────────┬──────────┘
│
▼
┌─────────────────────┐
│ Build QR data │
│ object │
└──────────┬──────────┘
│
▼
Return QRData
```
## Chain Validation
### Validation Checks
```typescript
function isChainValid(): boolean {
for (let i = 1; i < chain.length; i++) {
const current = chain[i];
const previous = chain[i - 1];
// Check 1: Hash integrity
const expectedHash = calculateHash(
current.index,
current.timestamp,
current.transportEvent,
current.previousHash,
current.nonce
);
if (current.hash !== expectedHash) {
return false; // Hash has been tampered
}
// Check 2: Chain linkage
if (current.previousHash !== previous.hash) {
return false; // Chain is broken
}
// Check 3: Proof of work
const target = '0'.repeat(difficulty);
if (current.hash.substring(0, difficulty) !== target) {
return false; // PoW not satisfied
}
}
return true;
}
```
## Storage and Persistence
### Export Format
```json
{
"difficulty": 3,
"chain": [
{
"index": 0,
"timestamp": "2024-01-01T00:00:00Z",
"transportEvent": { ... },
"previousHash": "0",
"hash": "000abc...",
"nonce": 12345,
"cumulativeCarbonKg": 0,
"cumulativeFoodMiles": 0,
"chainLength": 1
}
]
}
```
### Import Process
```typescript
static fromJSON(data: any): TransportChain {
const chain = new TransportChain(data.difficulty);
chain.chain = data.chain;
// Rebuild indexes from chain
for (const block of chain.chain) {
chain.indexEvent(block.transportEvent, block);
}
return chain;
}
```
## Performance Optimization
### Indexing Strategy
| Index | Use Case | Complexity |
|-------|----------|------------|
| eventIndex | Event lookup by ID | O(1) |
| plantEvents | Plant journey | O(1) |
| batchEvents | Batch tracking | O(1) |
### Mining Optimization
```typescript
// Parallel mining hint (future)
// Can be parallelized across CPU cores
function mineBlockParallel(block: TransportBlock): void {
const workers = os.cpus().length;
const ranges = divideNonceRange(0, MAX_NONCE, workers);
// Each worker tries nonces in its range
// First to find valid hash wins
}
```
## Integration Points
### With Plant Blockchain
```
Transport Chain Plant Chain
────────────── ───────────
plantIds in events ←─────────→ plantId in registrations
harvestBatchId ←─────────→ linked to plant
seedBatchId ←─────────→ lineage reference
```
### With Vertical Farm Controller
```
VF Controller Transport Chain
───────────── ───────────────
startCropBatch() ─creates─→ planting event
completeHarvest() ─creates─→ harvest event
─creates─→ distribution event
```
### With Demand Forecaster
```
Demand Forecaster Transport Chain
───────────────── ───────────────
supply matching ─tracks─→ distribution events
market matches ─creates─→ consumer_delivery events
```

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# Blockchain Architecture
Understanding LocalGreenChain's blockchain implementation for plant lineage and transport tracking.
## Overview
LocalGreenChain uses a custom proof-of-work blockchain designed specifically for agricultural traceability. Unlike cryptocurrency blockchains, our focus is on:
- **Immutability** - Plant records cannot be altered
- **Traceability** - Complete chain of custody
- **Efficiency** - Lightweight for agricultural use
- **Privacy** - User-controlled data visibility
## Core Concepts
### Blocks
Each block contains:
```typescript
interface PlantBlock {
index: number; // Position in chain
timestamp: string; // ISO 8601 datetime
data: PlantData; // Plant or transport data
previousHash: string; // Link to previous block
hash: string; // This block's hash
nonce: number; // Proof-of-work solution
}
```
### Chain Structure
```
┌─────────────────────────────────────────────────────────────────┐
│ BLOCKCHAIN │
├─────────────────────────────────────────────────────────────────┤
│ │
│ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │
│ │ Genesis │───→│ Block 1 │───→│ Block 2 │───→│ Block 3 │ │
│ │ Block │ │ │ │ │ │ │ │
│ │ │ │ hash: A │ │ hash: B │ │ hash: C │ │
│ │ prev: 0 │ │ prev: G │ │ prev: A │ │ prev: B │ │
│ └─────────┘ └─────────┘ └─────────┘ └─────────┘ │
│ G A B C │
│ │
│ Each block contains: │
│ - Plant registration OR transport event │
│ - Timestamp │
│ - Cryptographic link to previous block │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Proof of Work
### Mining Process
```typescript
function mineBlock(block: PlantBlock): void {
const target = '0'.repeat(difficulty);
while (block.hash.substring(0, difficulty) !== target) {
block.nonce++;
block.hash = calculateHash(block);
}
}
```
### Difficulty Levels
| Difficulty | Leading Zeros | Avg. Time | Use Case |
|------------|---------------|-----------|----------|
| 1 | 0 | < 1ms | Development |
| 2 | 00 | ~10ms | Testing |
| 3 | 000 | ~100ms | Default |
| 4 | 0000 | ~1s | Production |
| 5 | 00000 | ~10s | High Security |
### Hash Calculation
```typescript
function calculateHash(block: PlantBlock): string {
const data = `${block.index}${block.timestamp}${JSON.stringify(block.data)}${block.previousHash}${block.nonce}`;
return crypto.createHash('sha256').update(data).digest('hex');
}
```
## Chain Integrity
### Validation
Every block must satisfy:
1. **Correct Hash** - Hash matches recalculated hash
2. **Valid Previous Hash** - Links to actual previous block
3. **Proof of Work** - Hash meets difficulty requirement
4. **Timestamp Order** - Blocks are chronological
```typescript
function isChainValid(chain: PlantBlock[]): boolean {
for (let i = 1; i < chain.length; i++) {
const current = chain[i];
const previous = chain[i - 1];
// Verify hash
const expectedHash = calculateHash(current);
if (current.hash !== expectedHash) return false;
// Verify chain link
if (current.previousHash !== previous.hash) return false;
// Verify proof of work
const target = '0'.repeat(difficulty);
if (current.hash.substring(0, difficulty) !== target) return false;
}
return true;
}
```
## Data Types
### Plant Registration Block
```typescript
{
index: 42,
timestamp: "2024-06-01T10:00:00Z",
data: {
type: "plant_registration",
plantId: "plant-abc123",
commonName: "Tomato",
scientificName: "Solanum lycopersicum",
location: {
latitude: 40.7128,
longitude: -74.0060
},
owner: {
id: "user-123",
name: "John Doe"
},
generation: 0,
parentPlantId: null
},
previousHash: "00abc...",
hash: "00def...",
nonce: 12345
}
```
### Transport Event Block
```typescript
{
index: 43,
timestamp: "2024-06-15T08:00:00Z",
data: {
type: "transport_event",
eventType: "harvest",
plantIds: ["plant-abc123"],
fromLocation: { ... },
toLocation: { ... },
transportMethod: "electric_vehicle",
carbonFootprintKg: 2.5,
distanceKm: 25
},
previousHash: "00def...",
hash: "00ghi...",
nonce: 67890
}
```
## Lineage Tracking
### Parent-Child Relationships
```
Original Plant (Gen 0)
├── previousHash: null
├── propagationType: null
│
├─→ Clone A (Gen 1)
│ ├── previousHash: Original
│ ├── propagationType: "clone"
│ │
│ ├─→ Seed A-1 (Gen 2)
│ │ └── propagationType: "seed"
│ │
│ └─→ Clone A-2 (Gen 2)
│ └── propagationType: "clone"
│
└─→ Seed B (Gen 1)
├── propagationType: "seed"
│
└─→ Clone B-1 (Gen 2)
└── propagationType: "clone"
```
### Lineage Query
```typescript
function getLineage(plantId: string, generations: number): LineageTree {
const plant = findPlant(plantId);
return {
plant,
ancestors: getAncestors(plant.parentPlantId, generations),
descendants: getDescendants(plantId, generations)
};
}
```
## Cross-Chain References
### Transport Chain ↔ Plant Chain
Transport events reference plants by ID:
```typescript
// Transport chain references plant chain
{
eventType: "harvest",
plantIds: ["plant-abc123", "plant-abc124"], // References plant chain
harvestBatchId: "batch-001"
}
// Plant chain may reference transport
{
plantId: "plant-abc123",
lastTransportBlock: 156, // Reference to transport chain
currentCustodian: "user-456"
}
```
## Performance Considerations
### Storage
```
Block Size: ~1-2 KB typical
Growth Rate: ~10-100 blocks/day (varies by activity)
Storage/year: ~10-100 MB for active installation
```
### Indexing
Secondary indexes for fast lookups:
```typescript
// Plant ID → Block indices
plantIndex: Map<string, number[]>
// User ID → Block indices
userIndex: Map<string, number[]>
// Location → Block indices (geohash)
locationIndex: Map<string, number[]>
```
## Security
### Tamper Resistance
1. **Hash Chain** - Altering any block changes all subsequent hashes
2. **Proof of Work** - Expensive to recompute chain
3. **Distributed Copies** - Multiple users hold chain copies
4. **Signature Support** - Optional digital signatures
### Attack Resistance
| Attack | Defense |
|--------|---------|
| Data tampering | Hash verification fails |
| Chain rewrite | PoW cost prohibitive |
| Fake blocks | Signature verification |
| Replay | Timestamps + indices |
## Best Practices
### For Developers
1. **Validate on load** - Always verify chain integrity
2. **Backup regularly** - Export chain to JSON
3. **Monitor growth** - Archive old blocks if needed
4. **Index selectively** - Only index what you query
### For Operators
1. **Set appropriate difficulty** - Balance speed vs security
2. **Backup before updates** - Chain is your source of truth
3. **Monitor disk space** - Plan for growth
4. **Test restores** - Verify backups work
## Future Considerations
- **Distributed Consensus** - Multi-node verification
- **Sharding** - Geographic or species-based partitions
- **Merkle Trees** - Efficient verification
- **Zero-Knowledge Proofs** - Privacy-preserving verification

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# Carbon Footprint Tracking
Understanding environmental impact measurement in LocalGreenChain.
## Why Track Carbon?
Food production accounts for 26% of global greenhouse gas emissions. By tracking carbon at every step, LocalGreenChain enables:
1. **Awareness** - Know the impact of your food
2. **Optimization** - Choose lower-carbon options
3. **Reduction** - Make data-driven improvements
4. **Comparison** - See savings vs conventional
## Carbon Sources in Agriculture
### Traditional Supply Chain
```
┌─────────────────────────────────────────────────────────────────┐
│ CONVENTIONAL FOOD CARBON FOOTPRINT │
├─────────────────────────────────────────────────────────────────┤
│ │
│ Growing Transport Processing Retail Consumer │
│ ████████ ████████████ ████ ████ ████ │
│ 30% 50% 8% 7% 5% │
│ │
│ Total: 2.5 kg CO2 per kg produce (average) │
│ │
│ Key Contributors: │
│ - Fertilizer production and application │
│ - Long-distance trucking (refrigerated) │
│ - International shipping │
│ - Cold storage facilities │
│ - Last-mile delivery │
│ │
└─────────────────────────────────────────────────────────────────┘
```
### LocalGreenChain Model
```
┌─────────────────────────────────────────────────────────────────┐
│ LOCALGREENCHAIN CARBON FOOTPRINT │
├─────────────────────────────────────────────────────────────────┤
│ │
│ Growing Transport Processing Direct │
│ ████ ██ █ (Consumer) │
│ 60% 25% 10% 5% │
│ │
│ Total: 0.3 kg CO2 per kg produce (average) │
│ │
│ Savings: 88% reduction vs conventional │
│ │
│ Why Lower: │
│ - Local production (short transport) │
│ - Organic/sustainable methods │
│ - No cold storage needed (fresh delivery) │
│ - Efficient vertical farming │
│ - Direct grower-consumer connection │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Transport Carbon Factors
### By Transport Method
| Method | kg CO2 / km / kg | Notes |
|--------|------------------|-------|
| Walking | 0 | Zero emissions |
| Bicycle | 0 | Zero emissions |
| Electric Vehicle | 0.02 | Grid-dependent |
| Hybrid Vehicle | 0.08 | Partial electric |
| Gasoline Vehicle | 0.12 | Standard car |
| Diesel Truck | 0.15 | Delivery truck |
| Electric Truck | 0.03 | Large EV |
| Refrigerated Truck | 0.25 | Cooling adds load |
| Rail | 0.01 | Very efficient |
| Ship | 0.008 | Bulk efficiency |
| Air Freight | 0.50 | Highest impact |
| Drone | 0.01 | Short distance only |
### Calculation Formula
```typescript
function calculateTransportCarbon(
method: TransportMethod,
distanceKm: number,
weightKg: number
): number {
const factor = CARBON_FACTORS[method];
return factor * distanceKm * weightKg;
}
// Example: 20 kg tomatoes, 25 km by electric vehicle
const carbon = 0.02 * 25 * 20; // = 10 kg CO2
```
## Food Miles
### Definition
Food miles = total distance food travels from origin to consumer.
### Why It Matters
```
California Tomato to NYC:
├── Farm to packing: 20 miles
├── Packing to distribution: 50 miles
├── Distribution to cross-country truck: 10 miles
├── California to NYC: 2,800 miles
├── NYC distribution to store: 30 miles
├── Store to consumer: 5 miles
└── TOTAL: 2,915 miles
Local Brooklyn Tomato:
├── Farm to consumer: 12 miles
└── TOTAL: 12 miles
Savings: 99.6% reduction in food miles
```
### Distance Calculation
LocalGreenChain uses the Haversine formula:
```typescript
function calculateDistance(
from: { lat: number; lon: number },
to: { lat: number; lon: number }
): number {
const R = 6371; // Earth's radius in km
const dLat = toRadians(to.lat - from.lat);
const dLon = toRadians(to.lon - from.lon);
const a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(toRadians(from.lat)) *
Math.cos(toRadians(to.lat)) *
Math.sin(dLon/2) * Math.sin(dLon/2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
return R * c; // Distance in km
}
```
## Cumulative Tracking
### Per-Plant Journey
Every transport event adds to the total:
```typescript
interface PlantJourney {
plantId: string;
events: TransportEvent[];
totalFoodMiles: number; // Sum of all distances
totalCarbonKg: number; // Sum of all emissions
// Breakdown
milesPerStage: {
seedAcquisition: number;
growing: number;
harvest: number;
distribution: number;
};
}
```
### Per-User Footprint
```typescript
interface EnvironmentalImpact {
totalCarbonKg: number;
totalFoodMiles: number;
// Efficiency metrics
carbonPerKgProduce: number;
milesPerKgProduce: number;
// Breakdown by transport method
breakdownByMethod: {
[method: string]: {
distance: number;
carbon: number;
}
};
// Comparison to conventional
comparisonToConventional: {
carbonSaved: number;
milesSaved: number;
percentageReduction: number;
};
}
```
## Conventional Comparison
### Baseline Assumptions
| Produce | Conventional (kg CO2/kg) | Local (kg CO2/kg) | Savings |
|---------|--------------------------|-------------------|---------|
| Tomatoes | 2.8 | 0.32 | 89% |
| Lettuce | 1.5 | 0.15 | 90% |
| Peppers | 2.2 | 0.28 | 87% |
| Basil | 1.8 | 0.18 | 90% |
| Strawberries | 2.0 | 0.25 | 88% |
### Calculation
```typescript
function compareToConventional(
totalCarbonKg: number,
totalWeightKg: number
): Comparison {
// Conventional average: 2.5 kg CO2 per kg produce
// Conventional miles: 1,500 average
const conventionalCarbon = totalWeightKg * 2.5;
const conventionalMiles = totalWeightKg * 1500;
return {
carbonSaved: Math.max(0, conventionalCarbon - totalCarbonKg),
milesSaved: Math.max(0, conventionalMiles - totalFoodMiles),
percentageReduction: Math.round(
(1 - totalCarbonKg / conventionalCarbon) * 100
)
};
}
```
## Vertical Farming Impact
### Energy-Based Carbon
Vertical farms trade transport carbon for energy carbon:
```
Outdoor Growing: 0.2 kg CO2/kg (minimal energy)
+ Transport (1,500 mi): 2.3 kg CO2/kg
= Total: 2.5 kg CO2/kg
Vertical Farm: 0.25 kg CO2/kg (lighting/HVAC)
+ Transport (10 mi): 0.02 kg CO2/kg
= Total: 0.27 kg CO2/kg
Net Savings: 89%
```
### Factors Affecting VF Carbon
| Factor | Impact | Optimization |
|--------|--------|--------------|
| Grid carbon intensity | High | Renewable energy |
| LED efficiency | Medium | Latest technology |
| HVAC efficiency | Medium | Heat pumps |
| Insulation | Low | Building design |
## Reporting
### Environmental Impact Dashboard
```
┌─────────────────────────────────────────────────────────────────┐
│ YOUR ENVIRONMENTAL IMPACT │
├─────────────────────────────────────────────────────────────────┤
│ │
│ This Month vs Conventional │
│ ──────────── ───────────────── │
│ Total Produce: 45 kg You Saved: │
│ Carbon: 8.5 kg CO2 □ 104 kg CO2 │
│ Food Miles: 245 km □ 67,255 food miles │
│ □ 93% reduction │
│ │
│ Breakdown by Transport Method │
│ ───────────────────────────── │
│ Electric Vehicle: ████████████████ 180 km (0.8 kg CO2) │
│ Walking: █████ 45 km (0 kg CO2) │
│ Bicycle: ██ 20 km (0 kg CO2) │
│ │
│ Your Ranking: Top 15% of consumers │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Best Practices
### For Growers
1. **Local seed sources** - Reduce acquisition miles
2. **Clean transport** - Electric, bicycle, walk
3. **Batch deliveries** - Combine shipments
4. **Direct sales** - Skip distribution chain
5. **Renewable energy** - Solar for operations
### For Consumers
1. **Buy local** - Shorter supply chain
2. **Accept imperfect** - Reduces waste transport
3. **Plan purchases** - Fewer delivery trips
4. **Pick up when possible** - Zero delivery carbon
5. **Choose in-season** - No climate-controlled transport
### For System Operators
1. **Route optimization** - Minimize total distance
2. **Load optimization** - Full trucks, no empty returns
3. **Hub placement** - Strategic distribution points
4. **Electric fleet** - Transition to zero-emission
5. **Carbon tracking** - Continuous monitoring
## Future Improvements
- **Scope 3 emissions** - Full lifecycle analysis
- **Carbon offsetting** - Tree planting, etc.
- **Carbon credits** - Tradeable savings
- **Real-time tracking** - GPS + carbon calculation
- **AI optimization** - Minimize total footprint

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# Seasonal Planning
Understanding seasonal agriculture optimization in LocalGreenChain.
## The Seasonal Imperative
Traditional agriculture follows natural seasons. LocalGreenChain optimizes this by:
1. **Matching production to seasons** - Grow what grows best
2. **Forecasting seasonal demand** - Plant for expected consumption
3. **Extending seasons** - Greenhouses and vertical farms
4. **Planning transitions** - Smooth handoffs between seasons
## Seasonal Calendar
### Northern Hemisphere
```
┌─────────────────────────────────────────────────────────────────┐
│ SEASONAL GROWING CALENDAR │
├─────────────────────────────────────────────────────────────────┤
│ │
│ JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC │
│ ├────┼────┼────┼────┼────┼────┼────┼────┼────┼────┼────┤ │
│ │ │
│ │ WINTER SPRING SUMMER FALL WINTER │
│ │ │
│ │ Indoor: Cool Season: Warm Season: Cool Season: │
│ │ Microgreens Lettuce Tomatoes Kale │
│ │ Sprouts Spinach Peppers Broccoli │
│ │ Peas Cucumbers Brussels │
│ │ Radishes Basil Sprouts │
│ │ Squash Carrots │
│ │ │
└─────────────────────────────────────────────────────────────────┘
```
### Seasonal Factors
Each crop has seasonal multipliers:
```typescript
const SEASONAL_FACTORS = {
tomato: {
spring: 0.3, // Early season - limited
summer: 1.2, // Peak season - abundant
fall: 0.6, // Late season - declining
winter: 0.0 // Not available outdoors
},
lettuce: {
spring: 1.2, // Ideal conditions
summer: 0.5, // Too hot - bolts
fall: 1.2, // Ideal conditions
winter: 0.3 // Limited (greenhouse only)
}
};
```
## Demand Seasonality
### Consumer Patterns
```
Salads (Lettuce, Greens):
├── Summer: ████████████████ High demand
├── Spring: ████████████ Moderate-high
├── Fall: ████████ Moderate
└── Winter: ████ Lower
Tomatoes:
├── Summer: ████████████████████ Peak
├── Fall: ████████████ Good
├── Spring: ████████ Moderate (imported)
└── Winter: ████ Low (imported)
Root Vegetables:
├── Fall: ████████████████ Peak (harvest)
├── Winter: ████████████████ High (storage)
├── Spring: ████████ Moderate
└── Summer: ████ Low
```
### Forecasting Seasonal Demand
```typescript
function applySeasonalFactor(
baseDemand: number,
produceType: string,
season: Season
): number {
const factors = SEASONAL_FACTORS[produceType];
const factor = factors?.[season] ?? 1.0;
return baseDemand * factor;
}
```
## Planning Cycles
### Spring Planning (Feb-Mar)
1. **Review winter performance**
2. **Order seeds for spring/summer crops**
3. **Start indoor seedlings**
4. **Plan succession plantings**
5. **Commit supply to demand signals**
### Summer Planning (May-Jun)
1. **Adjust for actual spring results**
2. **Plan fall crop transitions**
3. **Order fall seeds**
4. **Plan preservation (canning, freezing)**
5. **Monitor water needs**
### Fall Planning (Aug-Sep)
1. **Seed saving from summer crops**
2. **Plant winter storage crops**
3. **Extend season with row covers**
4. **Plan winter production (indoor)**
5. **Prepare for first frost**
### Winter Planning (Nov-Dec)
1. **Review year's performance**
2. **Order next year's seeds**
3. **Plan crop rotation**
4. **Maintain indoor production**
5. **Update demand preferences**
## Seasonal Recommendations
### How Recommendations Work
```typescript
function generateSeasonalRecommendations(
grower: Grower,
season: Season,
demandSignals: DemandSignal[]
): PlantingRecommendation[] {
const recommendations = [];
for (const crop of getSeasonalCrops(season)) {
// Check if in season for this region
if (!isValidForSeason(crop, season, grower.hardinessZone)) {
continue;
}
// Find matching demand
const demand = findDemandForCrop(demandSignals, crop);
// Calculate recommendation
if (demand.gapKg > 0) {
recommendations.push({
produceType: crop,
plantByDate: getPlantByDate(crop, season),
expectedHarvestDate: getHarvestDate(crop, season),
...
});
}
}
return recommendations;
}
```
## Extending Seasons
### Season Extension Techniques
| Technique | Season Extension | Crops Suited |
|-----------|------------------|--------------|
| Row Covers | +2-4 weeks | Greens, roots |
| Cold Frames | +4-6 weeks | Salads, herbs |
| Hoop Houses | +6-10 weeks | Most crops |
| Heated Greenhouse | Year-round | All crops |
| Vertical Farm | Year-round | Leafy, herbs |
### Integration with Vertical Farms
```
Outdoor Season: ████████████████░░░░░░░░████████████████
Greenhouse: ████████████████████████████████████████
Vertical Farm: ████████████████████████████████████████
Combined Supply: ████████████████████████████████████████
```
Vertical farms fill gaps:
- Early spring (before outdoor ready)
- Mid-summer (heat gaps)
- Late fall (after frost)
- Winter (full production)
## Crop Rotation
### Benefits
1. **Soil health** - Different nutrient needs
2. **Pest reduction** - Break pest cycles
3. **Disease prevention** - Reduce pathogen buildup
4. **Yield improvement** - Better long-term production
### Rotation Groups
```
Year 1: LEAFY GREENS (Nitrogen users)
Lettuce, Spinach, Kale, Chard
↓
Year 2: FRUITING (Heavy feeders)
Tomatoes, Peppers, Squash, Cucumbers
↓
Year 3: LEGUMES (Nitrogen fixers)
Beans, Peas, Cover crops
↓
Year 4: ROOTS (Light feeders)
Carrots, Beets, Radishes, Onions
↓
Back to Year 1
```
### Rotation in LocalGreenChain
```typescript
interface SeasonalPlan {
growerId: string;
year: number;
season: Season;
// Previous year data for rotation
previousYearCrops: Map<Zone, string>;
// Current plan respects rotation
plannedCrops: PlannedCrop[];
}
```
## Succession Planting
### Concept
Plant same crop multiple times for continuous harvest:
```
Week 1: Plant batch A [●●●●●]
Week 3: Plant batch B [●●●●●] → Batch A growing [○○○●●]
Week 5: Plant batch C [●●●●●] → Batch A harvest [✓✓✓○○]
Week 7: Plant batch D [●●●●●] → Batch B harvest [✓✓✓○○]
...
Result: Continuous harvest every 2 weeks
```
### Scheduling
```typescript
function planSuccessionPlanting(
crop: string,
totalWeeks: number,
harvestFrequency: number
): PlantingSchedule[] {
const schedules = [];
const growingDays = SEASONAL_DATA[crop].growingDays;
let weekOffset = 0;
while (weekOffset < totalWeeks) {
schedules.push({
plantWeek: weekOffset,
harvestWeek: weekOffset + Math.ceil(growingDays / 7)
});
weekOffset += harvestFrequency;
}
return schedules;
}
```
## Best Practices
### For Growers
1. **Plan early** - Order seeds 2-3 months ahead
2. **Track frost dates** - Know your last spring/first fall frost
3. **Use succession** - Continuous harvest beats big batches
4. **Save seeds** - Preserve locally-adapted varieties
5. **Check demand** - Align planting with signals
### For Consumers
1. **Embrace seasonality** - Best produce is in-season
2. **Set preferences** - System learns your patterns
3. **Be flexible** - Accept seasonal variety
4. **Preserve** - Learn to freeze, can, dry
5. **Plan ahead** - Subscribe to seasonal boxes
## Data-Driven Optimization
### Tracking Seasonal Performance
```typescript
interface SeasonalAnalytics {
season: Season;
year: number;
// What worked
successfulCrops: {
crop: string;
yieldVsExpected: number; // >1.0 = outperformed
qualityScore: number;
}[];
// What didn't
failedCrops: {
crop: string;
reason: string;
}[];
// Learnings for next year
recommendations: string[];
}
```
### Continuous Improvement
1. **Record everything** - Conditions, yields, issues
2. **Analyze yearly** - What patterns emerge?
3. **Adjust plans** - Apply learnings
4. **Share knowledge** - Community benefits

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# Example: Demand-Driven Planting
Complete workflow for responding to demand signals and optimizing production.
## Scenario
You're a grower with 500 sqm of growing space. You want to plant what consumers actually need, not just guess.
## Step 1: Set Up Consumer Preferences
First, consumers in your region register their preferences:
```typescript
// Consumers register their preferences
// POST /api/demand/preferences
// Consumer A: Family of 4, organic focus
const consumerA = {
consumerId: 'consumer-001',
location: {
latitude: 40.7128,
longitude: -74.0060,
maxDeliveryRadiusKm: 25,
city: 'Brooklyn'
},
dietaryType: ['vegetarian'],
preferredCategories: ['leafy_greens', 'nightshades', 'herbs'],
preferredItems: [
{ produceType: 'tomato', priority: 'must_have', weeklyQuantity: 3 },
{ produceType: 'lettuce', priority: 'preferred', weeklyQuantity: 2 },
{ produceType: 'basil', priority: 'nice_to_have', weeklyQuantity: 0.2 }
],
certificationPreferences: ['organic', 'local'],
freshnessImportance: 5,
sustainabilityImportance: 5,
householdSize: 4,
weeklyBudget: 100
};
// Consumer B: Couple, price-conscious
const consumerB = {
consumerId: 'consumer-002',
location: {
latitude: 40.7200,
longitude: -74.0100,
maxDeliveryRadiusKm: 15,
city: 'Brooklyn'
},
preferredItems: [
{ produceType: 'tomato', priority: 'preferred', weeklyQuantity: 1.5 },
{ produceType: 'cucumber', priority: 'must_have', weeklyQuantity: 2 },
{ produceType: 'pepper', priority: 'nice_to_have', weeklyQuantity: 1 }
],
priceImportance: 5,
householdSize: 2,
weeklyBudget: 60
};
// Register preferences
await fetch('/api/demand/preferences', {
method: 'POST',
body: JSON.stringify(consumerA)
});
await fetch('/api/demand/preferences', {
method: 'POST',
body: JSON.stringify(consumerB)
});
```
## Step 2: Generate Demand Signal
The system aggregates preferences for your region:
```typescript
// POST /api/demand/signal
const signalRequest = {
centerLat: 40.7150,
centerLon: -74.0080,
radiusKm: 30,
regionName: 'Brooklyn North',
season: 'summer'
};
const response = await fetch('/api/demand/signal', {
method: 'POST',
body: JSON.stringify(signalRequest)
});
const { data: demandSignal } = await response.json();
console.log(demandSignal);
/*
{
id: 'demand-2024-abc123',
region: { name: 'Brooklyn North', radiusKm: 30 },
seasonalPeriod: 'summer',
demandItems: [
{
produceType: 'tomato',
weeklyDemandKg: 180,
consumerCount: 95,
aggregatePriority: 8,
urgency: 'this_week',
inSeason: true,
matchedSupply: 60,
gapKg: 120 // OPPORTUNITY!
},
{
produceType: 'lettuce',
weeklyDemandKg: 120,
consumerCount: 72,
aggregatePriority: 6,
inSeason: false, // Too hot for outdoor lettuce
gapKg: 80
},
{
produceType: 'cucumber',
weeklyDemandKg: 90,
gapKg: 45
},
{
produceType: 'basil',
weeklyDemandKg: 25,
gapKg: 25
}
],
totalConsumers: 150,
totalWeeklyDemandKg: 415,
supplyGapKg: 270,
supplyStatus: 'shortage' // Opportunity!
}
*/
```
## Step 3: Get Planting Recommendations
Now, get personalized recommendations for your space:
```typescript
// GET /api/demand/recommendations
const response = await fetch(
'/api/demand/recommendations?' + new URLSearchParams({
growerId: 'grower-001',
lat: '40.7100',
lon: '-74.0050',
deliveryRadiusKm: '40',
availableSpaceSqm: '500',
season: 'summer'
})
);
const { data } = await response.json();
const recommendations = data.recommendations;
console.log(recommendations);
/*
[
{
id: 'rec-001',
produceType: 'tomato',
category: 'nightshades',
// What to plant
recommendedQuantity: 200, // sqm
quantityUnit: 'sqm',
expectedYieldKg: 1600,
// When
plantByDate: '2024-05-15',
expectedHarvestStart: '2024-08-01',
expectedHarvestEnd: '2024-09-15',
growingDays: 80,
// Revenue projection
projectedDemandKg: 480, // Monthly
projectedPricePerKg: 4.50,
projectedRevenue: 7200,
marketConfidence: 85,
// Risks
riskFactors: [
{
type: 'weather',
severity: 'medium',
description: 'Single season crop with weather sensitivity',
mitigationSuggestion: 'Consider greenhouse for portion'
}
],
overallRisk: 'medium',
// Why this recommendation
explanation: 'Based on 3 demand signals showing 120kg weekly gap...'
},
{
produceType: 'cucumber',
recommendedQuantity: 100,
expectedYieldKg: 1000,
projectedRevenue: 3500,
overallRisk: 'low'
},
{
produceType: 'basil',
recommendedQuantity: 50,
expectedYieldKg: 100,
projectedRevenue: 1500,
overallRisk: 'low'
}
]
*/
```
## Step 4: Make Planting Decision
Review recommendations and decide:
```typescript
// Space allocation based on recommendations
const plantingPlan = {
'tomato': {
sqm: 200,
expectedYield: 1600,
priority: 'high'
},
'cucumber': {
sqm: 100,
expectedYield: 1000,
priority: 'medium'
},
'basil': {
sqm: 50,
expectedYield: 100,
priority: 'medium'
},
// Reserve 150 sqm for crop rotation / next planting
'reserved': {
sqm: 150,
purpose: 'fall crops'
}
};
console.log('Total allocated:', 350, 'sqm');
console.log('Expected total yield:', 2700, 'kg');
console.log('Projected revenue:', 12200, 'USD');
```
## Step 5: Commit Supply
Pre-commit your planned production:
```typescript
// POST /api/demand/supply
const supplyCommitment = {
growerId: 'grower-001',
produceType: 'tomato',
variety: 'Multiple heirloom',
// What you're committing
committedQuantityKg: 1600,
availableFrom: '2024-08-01',
availableUntil: '2024-09-30',
// Pricing
pricePerKg: 4.50,
currency: 'USD',
minimumOrderKg: 2,
bulkDiscountThreshold: 10,
bulkDiscountPercent: 10,
// Quality
certifications: ['local'],
freshnessGuaranteeHours: 24,
// Delivery
deliveryRadiusKm: 40,
deliveryMethods: ['grower_delivery', 'farmers_market', 'customer_pickup']
};
const response = await fetch('/api/demand/supply', {
method: 'POST',
body: JSON.stringify(supplyCommitment)
});
const { data } = await response.json();
console.log('Supply committed:', data.id);
console.log('Status:', data.status); // 'available'
```
## Step 6: Get Matched
The system matches supply with demand:
```typescript
// System creates matches automatically, or manually:
// POST /api/demand/match
const match = {
demandSignalId: 'demand-2024-abc123',
supplyCommitmentId: data.id,
consumerId: 'consumer-001',
growerId: 'grower-001',
produceType: 'tomato',
matchedQuantityKg: 3,
agreedPricePerKg: 4.50,
totalPrice: 13.50,
currency: 'USD',
deliveryDate: '2024-08-05',
deliveryMethod: 'home_delivery',
deliveryLocation: {
latitude: 40.7128,
longitude: -74.0060,
address: '123 Main St, Brooklyn'
}
};
await fetch('/api/demand/match', {
method: 'POST',
body: JSON.stringify(match)
});
```
## Step 7: Forecast Future Demand
Plan for upcoming seasons:
```typescript
// GET /api/demand/forecast
const response = await fetch(
'/api/demand/forecast?' + new URLSearchParams({
region: 'Brooklyn North',
weeks: '12'
})
);
const { data: forecast } = await response.json();
console.log(forecast);
/*
{
id: 'forecast-2024-xyz',
region: 'Brooklyn North',
forecastPeriod: {
start: '2024-06-01',
end: '2024-08-24'
},
forecasts: [
{
produceType: 'tomato',
predictedDemandKg: 2400,
confidence: 80,
trend: 'increasing',
seasonalFactor: 1.2,
factors: [
{
name: 'Seasonal peak',
type: 'seasonal',
impact: 20,
description: 'Summer peak for tomatoes'
}
]
},
{
produceType: 'lettuce',
predictedDemandKg: 800,
trend: 'decreasing',
seasonalFactor: 0.6, // Too hot
factors: [
{
name: 'Heat sensitivity',
impact: -40,
description: 'Outdoor lettuce struggles in summer'
}
]
}
]
}
*/
```
## Complete Workflow Script
```typescript
// demand-driven-workflow.ts
import { getDemandForecaster } from '@/lib/demand/forecaster';
async function demandDrivenWorkflow() {
const forecaster = getDemandForecaster();
// 1. Register some consumer preferences
const consumers = [
createConsumerPreference('consumer-001', [
{ produceType: 'tomato', priority: 'must_have', weeklyQuantity: 3 }
]),
createConsumerPreference('consumer-002', [
{ produceType: 'tomato', priority: 'preferred', weeklyQuantity: 1.5 }
]),
// ... more consumers
];
for (const consumer of consumers) {
forecaster.registerPreference(consumer);
}
// 2. Generate demand signal
const demandSignal = forecaster.generateDemandSignal(
40.7150, // latitude
-74.0080, // longitude
30, // radius km
'Brooklyn North',
'summer'
);
console.log('Demand signal generated');
console.log('Total demand:', demandSignal.totalWeeklyDemandKg, 'kg/week');
console.log('Supply gap:', demandSignal.supplyGapKg, 'kg/week');
console.log('Status:', demandSignal.supplyStatus);
// 3. Get recommendations for grower
const recommendations = forecaster.generatePlantingRecommendations(
'grower-001',
40.7100, // grower lat
-74.0050, // grower lon
40, // delivery radius
500, // available sqm
'summer'
);
console.log('\nRecommendations:');
for (const rec of recommendations) {
console.log(`- ${rec.produceType}: ${rec.recommendedQuantity} sqm`);
console.log(` Expected yield: ${rec.expectedYieldKg} kg`);
console.log(` Projected revenue: $${rec.projectedRevenue}`);
console.log(` Risk: ${rec.overallRisk}`);
}
// 4. Commit supply
const supply = {
id: `supply-${Date.now()}`,
growerId: 'grower-001',
produceType: 'tomato',
committedQuantityKg: 1600,
availableFrom: new Date(Date.now() + 60 * 24 * 60 * 60 * 1000).toISOString(),
availableUntil: new Date(Date.now() + 120 * 24 * 60 * 60 * 1000).toISOString(),
pricePerKg: 4.50,
currency: 'USD',
certifications: ['local'],
status: 'available',
remainingKg: 1600
};
forecaster.registerSupply(supply);
console.log('\nSupply committed:', supply.committedQuantityKg, 'kg');
// 5. Generate updated signal (should show reduced gap)
const updatedSignal = forecaster.generateDemandSignal(
40.7150, -74.0080, 30, 'Brooklyn North', 'summer'
);
console.log('\nUpdated supply status:', updatedSignal.supplyStatus);
console.log('Remaining gap:', updatedSignal.supplyGapKg, 'kg/week');
return {
demandSignal,
recommendations,
supply,
updatedSignal
};
}
// Run workflow
demandDrivenWorkflow()
.then(result => console.log('\nWorkflow complete!'))
.catch(console.error);
```
## Key Insights
### Why Demand-Driven Works
1. **Reduced waste** - Grow what people want
2. **Better prices** - Pre-commitment secures sales
3. **Lower risk** - Data-driven decisions
4. **Happy consumers** - They get what they need
5. **Sustainability** - Less overproduction
### Best Practices
1. Check demand signals weekly
2. Start with high-demand, low-risk crops
3. Commit supply early for best matching
4. Adjust based on actual results
5. Build relationships with regular consumers

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# Example: Seed to Harvest Workflow
Complete working example of tracking a plant from seed acquisition through harvest.
## Scenario
You're a grower who just acquired tomato seeds and wants to track them through the full growing cycle.
## Step 1: Acquire Seeds
### Record Seed Acquisition
```typescript
// POST /api/transport/seed-acquisition
const seedAcquisitionEvent = {
// Event identity
id: crypto.randomUUID(),
timestamp: new Date().toISOString(),
eventType: 'seed_acquisition',
// Seed details
seedBatchId: 'seeds-tomato-2024-001',
sourceType: 'purchase',
species: 'Solanum lycopersicum',
variety: 'Cherokee Purple',
quantity: 100,
quantityUnit: 'seeds',
generation: 1,
certifications: ['organic', 'heirloom'],
// Location tracking
fromLocation: {
latitude: 38.9072,
longitude: -77.0369,
locationType: 'seed_bank',
facilityName: 'Heritage Seed Company',
city: 'Washington',
country: 'USA'
},
toLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: 'farm',
facilityName: 'Brooklyn Urban Farm',
city: 'Brooklyn',
country: 'USA'
},
// Transport details
transportMethod: 'local_delivery',
distanceKm: 350,
durationMinutes: 1440, // 1 day shipping
// Parties
senderId: 'heritage-seeds-001',
receiverId: 'grower-brooklyn-001',
status: 'delivered'
};
// API call
const response = await fetch('/api/transport/seed-acquisition', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(seedAcquisitionEvent)
});
const { data: block } = await response.json();
console.log('Seed acquisition recorded:', block.hash);
// Output: Seed acquisition recorded: 000abc123...
```
## Step 2: Plant Seeds
### Record Planting Event
```typescript
// Wait until planting day...
// POST /api/transport/planting
const plantingEvent = {
id: crypto.randomUUID(),
timestamp: new Date().toISOString(),
eventType: 'planting',
// Link to seeds
seedBatchId: 'seeds-tomato-2024-001',
// New plants created
plantIds: Array.from({ length: 25 }, (_, i) =>
`plant-tomato-2024-${String(i + 1).padStart(3, '0')}`
),
quantityPlanted: 25,
// Planting details
plantingMethod: 'indoor_start',
growingEnvironment: 'greenhouse',
sowingDepth: 6, // mm
spacing: 5, // cm (seed starting trays)
// Timeline
expectedHarvestDate: new Date(
Date.now() + 80 * 24 * 60 * 60 * 1000 // 80 days
).toISOString(),
// Location (same farm, different area)
fromLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: 'farm',
facilityName: 'Brooklyn Urban Farm - Seed Storage'
},
toLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: 'greenhouse',
facilityName: 'Brooklyn Urban Farm - Greenhouse'
},
transportMethod: 'walking',
distanceKm: 0.05,
durationMinutes: 5,
senderId: 'grower-brooklyn-001',
receiverId: 'grower-brooklyn-001',
status: 'verified'
};
const response = await fetch('/api/transport/planting', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(plantingEvent)
});
const { data: block } = await response.json();
console.log('Planting recorded:', block.hash);
console.log('Plants created:', plantingEvent.plantIds.length);
// Output: 25 plants now tracked on blockchain
```
## Step 3: Track Growing Transport (Optional)
### Record Transplanting
```typescript
// 3 weeks later - transplant to final positions
// POST /api/transport/growing
const transplantEvent = {
id: crypto.randomUUID(),
timestamp: new Date().toISOString(),
eventType: 'growing_transport',
// Which plants
plantIds: plantingEvent.plantIds,
// Transplant details
reason: 'transplant',
plantStage: 'seedling',
handlingMethod: 'potted',
rootDisturbance: 'minimal',
acclimatizationRequired: true,
acclimatizationDays: 3,
// Location (greenhouse to outdoor beds)
fromLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: 'greenhouse',
facilityName: 'Brooklyn Urban Farm - Greenhouse'
},
toLocation: {
latitude: 40.7125,
longitude: -74.0055,
locationType: 'farm',
facilityName: 'Brooklyn Urban Farm - Plot A'
},
transportMethod: 'walking',
distanceKm: 0.1,
durationMinutes: 30,
// Environmental conditions during move
environmentalConditions: {
temperatureMin: 18,
temperatureMax: 24,
temperatureAvg: 21,
humidityMin: 50,
humidityMax: 70,
humidityAvg: 60,
lightExposure: 'ambient'
},
senderId: 'grower-brooklyn-001',
receiverId: 'grower-brooklyn-001',
status: 'verified'
};
await fetch('/api/transport/growing', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(transplantEvent)
});
```
## Step 4: Harvest
### Record Harvest Event
```typescript
// 80 days from planting - harvest time!
// POST /api/transport/harvest
const harvestEvent = {
id: crypto.randomUUID(),
timestamp: new Date().toISOString(),
eventType: 'harvest',
// Which plants
plantIds: plantingEvent.plantIds,
harvestBatchId: 'harvest-tomato-2024-001',
// Harvest details
harvestType: 'partial', // More to come
produceType: 'tomatoes',
// Quantities
grossWeight: 45, // kg
netWeight: 42, // after culls
weightUnit: 'kg',
itemCount: 180, // individual tomatoes
// Quality
qualityGrade: 'A',
qualityNotes: 'Excellent color, firm texture, no blemishes',
// Storage requirements
packagingType: 'cardboard flats',
temperatureRequired: {
min: 10,
max: 15,
optimal: 12,
unit: 'celsius'
},
shelfLifeHours: 168, // 1 week
// Seed saving!
seedsSaved: true,
seedBatchIdCreated: 'seeds-tomato-2024-002', // Next generation!
// Location
fromLocation: {
latitude: 40.7125,
longitude: -74.0055,
locationType: 'farm',
facilityName: 'Brooklyn Urban Farm - Plot A'
},
toLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: 'warehouse',
facilityName: 'Brooklyn Urban Farm - Pack House'
},
transportMethod: 'walking',
distanceKm: 0.1,
durationMinutes: 45,
senderId: 'grower-brooklyn-001',
receiverId: 'grower-brooklyn-001',
status: 'verified'
};
const response = await fetch('/api/transport/harvest', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(harvestEvent)
});
const { data: block } = await response.json();
console.log('Harvest recorded:', block.hash);
console.log('Next generation seeds:', harvestEvent.seedBatchIdCreated);
```
## Step 5: View the Journey
### Get Complete Plant Journey
```typescript
// GET /api/transport/journey/plant-tomato-2024-001
const response = await fetch('/api/transport/journey/plant-tomato-2024-001');
const { data: journey } = await response.json();
console.log(journey);
/*
{
plantId: 'plant-tomato-2024-001',
seedBatchOrigin: 'seeds-tomato-2024-001',
currentCustodian: 'grower-brooklyn-001',
currentLocation: {
facilityName: 'Brooklyn Urban Farm - Pack House',
city: 'Brooklyn'
},
currentStage: 'post_harvest',
events: [
{ eventType: 'seed_acquisition', ... },
{ eventType: 'planting', ... },
{ eventType: 'growing_transport', ... },
{ eventType: 'harvest', ... }
],
totalFoodMiles: 350.25, // km
totalCarbonKg: 1.75,
daysInTransit: 1,
daysGrowing: 80,
generation: 1,
ancestorPlantIds: [],
descendantSeedBatches: ['seeds-tomato-2024-002']
}
*/
```
### Get Environmental Impact
```typescript
// GET /api/transport/footprint/grower-brooklyn-001
const response = await fetch('/api/transport/footprint/grower-brooklyn-001');
const { data: impact } = await response.json();
console.log(impact);
/*
{
totalCarbonKg: 1.75,
totalFoodMiles: 350.25,
carbonPerKgProduce: 0.042, // Very low!
comparisonToConventional: {
carbonSaved: 103.25, // kg CO2
milesSaved: 62649.75, // miles
percentageReduction: 98 // Amazing!
}
}
*/
```
### Generate QR Code
```typescript
// GET /api/transport/qr/plant-tomato-2024-001
const response = await fetch('/api/transport/qr/plant-tomato-2024-001');
const { data: qrData } = await response.json();
console.log(qrData);
/*
{
plantId: 'plant-tomato-2024-001',
blockchainAddress: '000abc123def456789...',
quickLookupUrl: 'https://localgreenchain.org/track/plant-tomato-2024-001',
lineageHash: 'a1b2c3d4e5f6',
currentCustodian: 'grower-brooklyn-001',
lastEventType: 'harvest',
lastEventTimestamp: '2024-08-15T10:00:00Z',
verificationCode: 'A1B2C3D4'
}
*/
// Consumer scans QR code → sees complete journey
```
## Complete Code Example
```typescript
// Full workflow in one script
import { TransportChain, getTransportChain } from '@/lib/transport/tracker';
async function seedToHarvestWorkflow() {
// Initialize chain
const chain = getTransportChain();
// Step 1: Acquire seeds
const seedEvent = createSeedAcquisitionEvent();
const seedBlock = chain.recordEvent(seedEvent);
console.log('Seeds acquired, block:', seedBlock.hash);
// Step 2: Plant
const plantEvent = createPlantingEvent(seedEvent.seedBatchId);
const plantBlock = chain.recordEvent(plantEvent);
console.log('Planted, block:', plantBlock.hash);
// Step 3: Transplant (optional)
const transplantEvent = createTransplantEvent(plantEvent.plantIds);
const transplantBlock = chain.recordEvent(transplantEvent);
console.log('Transplanted, block:', transplantBlock.hash);
// Step 4: Harvest
const harvestEvent = createHarvestEvent(plantEvent.plantIds);
const harvestBlock = chain.recordEvent(harvestEvent);
console.log('Harvested, block:', harvestBlock.hash);
// Get journey for first plant
const journey = chain.getPlantJourney(plantEvent.plantIds[0]);
console.log('Journey:', journey);
// Get environmental impact
const impact = chain.getEnvironmentalImpact('grower-brooklyn-001');
console.log('Impact:', impact);
// Verify chain integrity
const isValid = chain.isChainValid();
console.log('Chain valid:', isValid); // true
return {
seedBatchId: seedEvent.seedBatchId,
plantIds: plantEvent.plantIds,
harvestBatchId: harvestEvent.harvestBatchId,
nextGeneration: harvestEvent.seedBatchIdCreated,
journey,
impact
};
}
// Run it!
seedToHarvestWorkflow()
.then(result => console.log('Complete!', result))
.catch(console.error);
```
## What Happens Next?
### Distribution
```typescript
// Continue the chain with distribution...
POST /api/transport/distribution
{
batchIds: ['harvest-tomato-2024-001'],
destinationType: 'farmers_market',
...
}
```
### Next Generation
```typescript
// The cycle continues with saved seeds...
POST /api/transport/seed-acquisition
{
seedBatchId: 'seeds-tomato-2024-002', // From this harvest
sourceType: 'previous_harvest',
generation: 2, // Second generation!
geneticLineageId: 'lineage-cherokee-purple-001',
parentPlantIds: ['plant-tomato-2024-001', 'plant-tomato-2024-005'],
...
}
```
The seed-to-seed cycle is complete!

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# Example: Vertical Farm Setup
Complete workflow for setting up and operating a vertical farm with LocalGreenChain.
## Scenario
You're setting up a 400 sqm vertical farm to grow lettuce, basil, and microgreens year-round.
## Step 1: Register Your Farm
```typescript
// POST /api/vertical-farm/register
const farmRegistration = {
name: 'Urban Greens VF',
ownerId: 'operator-001',
location: {
latitude: 40.7128,
longitude: -74.0060,
address: '500 Industrial Way',
city: 'Brooklyn',
country: 'USA',
timezone: 'America/New_York'
},
specs: {
totalAreaSqm: 500,
growingAreaSqm: 400,
numberOfLevels: 4,
ceilingHeightM: 4,
totalGrowingPositions: 5000,
currentActivePlants: 0,
powerCapacityKw: 150,
waterStorageL: 10000,
backupPowerHours: 24,
certifications: ['gap', 'local_food_safety'],
buildingType: 'warehouse',
insulation: 'high_efficiency'
},
automationLevel: 'semi_automated'
};
const response = await fetch('/api/vertical-farm/register', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(farmRegistration)
});
const { data: farm } = await response.json();
console.log('Farm registered:', farm.id);
console.log('Status:', farm.status); // 'operational'
```
## Step 2: Configure Growing Zones
Create zones for different crops:
```typescript
// Zone A: Lettuce (NFT system)
const zoneA = {
name: 'Zone A - Lettuce',
level: 1,
areaSqm: 150,
lengthM: 30,
widthM: 5,
growingMethod: 'NFT',
plantPositions: 1800,
environmentTargets: {
temperatureC: { min: 18, max: 24, target: 21 },
humidityPercent: { min: 55, max: 75, target: 65 },
co2Ppm: { min: 800, max: 1400, target: 1000 },
lightPpfd: { min: 200, max: 400, target: 300 },
lightHours: 16,
nutrientEc: { min: 1.2, max: 1.8, target: 1.5 },
nutrientPh: { min: 5.5, max: 6.5, target: 6.0 },
waterTempC: { min: 18, max: 22, target: 20 }
}
};
// Zone B: Basil (DWC system)
const zoneB = {
name: 'Zone B - Basil',
level: 2,
areaSqm: 100,
lengthM: 20,
widthM: 5,
growingMethod: 'DWC',
plantPositions: 1200,
environmentTargets: {
temperatureC: { min: 20, max: 28, target: 24 },
humidityPercent: { min: 50, max: 70, target: 60 },
co2Ppm: { min: 800, max: 1400, target: 1200 },
lightPpfd: { min: 300, max: 500, target: 400 },
lightHours: 18,
nutrientEc: { min: 1.0, max: 1.6, target: 1.3 },
nutrientPh: { min: 5.5, max: 6.5, target: 6.0 },
waterTempC: { min: 18, max: 22, target: 20 }
}
};
// Zone C: Microgreens (Rack system)
const zoneC = {
name: 'Zone C - Microgreens',
level: 3,
areaSqm: 100,
lengthM: 20,
widthM: 5,
growingMethod: 'rack_system',
plantPositions: 2000, // Tray positions
environmentTargets: {
temperatureC: { min: 18, max: 24, target: 21 },
humidityPercent: { min: 60, max: 80, target: 70 },
co2Ppm: { min: 600, max: 1200, target: 800 },
lightPpfd: { min: 150, max: 300, target: 250 },
lightHours: 16,
nutrientEc: { min: 0.5, max: 1.0, target: 0.8 },
nutrientPh: { min: 5.5, max: 6.5, target: 6.0 },
waterTempC: { min: 18, max: 22, target: 20 }
}
};
// Create zones
for (const zone of [zoneA, zoneB, zoneC]) {
await fetch(`/api/vertical-farm/${farm.id}/zones`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(zone)
});
}
console.log('Zones configured: Lettuce, Basil, Microgreens');
```
## Step 3: View Available Recipes
```typescript
// GET /api/vertical-farm/recipes
const response = await fetch('/api/vertical-farm/recipes');
const { data: recipes } = await response.json();
console.log('Available recipes:');
for (const recipe of recipes) {
console.log(`- ${recipe.name}`);
console.log(` Crop: ${recipe.cropType}`);
console.log(` Days: ${recipe.expectedDays}`);
console.log(` Yield: ${recipe.expectedYieldGrams}g per plant`);
}
/*
Available recipes:
- Butterhead Lettuce - Fast Cycle
Crop: lettuce
Days: 35
Yield: 180g per plant
- Genovese Basil - Aromatic
Crop: basil
Days: 42
Yield: 120g per plant
- Microgreens Mix - Quick Turn
Crop: microgreens
Days: 14
Yield: 200g per tray
*/
```
## Step 4: Start Crop Batches
### Link to Seed Source
First, ensure seeds are tracked in the transport chain:
```typescript
// Record seed acquisition (see seed-to-harvest example)
await fetch('/api/transport/seed-acquisition', {
method: 'POST',
body: JSON.stringify({
seedBatchId: 'seeds-lettuce-vf-001',
sourceType: 'purchase',
species: 'Lactuca sativa',
quantity: 10000,
quantityUnit: 'seeds',
// ... other fields
})
});
```
### Start Lettuce Batch
```typescript
// POST /api/vertical-farm/batch/start
const lettuceBatch = {
farmId: farm.id,
zoneId: 'zone-a-id',
recipeId: 'recipe-lettuce-butterhead',
seedBatchId: 'seeds-lettuce-vf-001', // Links to transport chain!
plantCount: 200
};
const response = await fetch('/api/vertical-farm/batch/start', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(lettuceBatch)
});
const { data: batch } = await response.json();
console.log('Batch started:', batch.id);
console.log('Expected harvest:', batch.expectedHarvestDate);
console.log('Expected yield:', batch.expectedYieldKg, 'kg');
console.log('Plant IDs:', batch.plantIds.length, 'plants tracked');
/*
Batch started: batch-lettuce-001
Expected harvest: 2024-07-06
Expected yield: 36 kg
Plant IDs: 200 plants tracked
*/
```
### Start Microgreens Batch
```typescript
const microgreensBatch = {
farmId: farm.id,
zoneId: 'zone-c-id',
recipeId: 'recipe-microgreens-mix',
seedBatchId: 'seeds-microgreens-001',
plantCount: 50 // 50 trays
};
await fetch('/api/vertical-farm/batch/start', {
method: 'POST',
body: JSON.stringify(microgreensBatch)
});
// Microgreens harvest in just 14 days!
```
## Step 5: Report Environment Data
Set up automated reporting from your control system:
```typescript
// Environmental monitoring script
async function reportEnvironment() {
// Collect sensor data
const readings = await collectSensorData('zone-a-id');
// PUT /api/vertical-farm/batch/{batchId}/environment
const response = await fetch(`/api/vertical-farm/batch/${batch.id}/environment`, {
method: 'PUT',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${API_KEY}`
},
body: JSON.stringify({
timestamp: new Date().toISOString(),
temperatureC: readings.temperature, // 21.5
humidityPercent: readings.humidity, // 68
co2Ppm: readings.co2, // 1050
vpd: readings.vpd, // 0.85
ppfd: readings.ppfd, // 295
dli: readings.dli, // 17.0
waterTempC: readings.waterTemp, // 19.5
ec: readings.ec, // 1.55
ph: readings.ph, // 6.1
dissolvedOxygenPpm: readings.do, // 8.2
airflowMs: readings.airflow // 0.5
})
});
const { data } = await response.json();
// Handle any alerts
if (data.alerts && data.alerts.length > 0) {
console.log('ALERTS:', data.alerts);
for (const alert of data.alerts) {
handleAlert(alert);
}
}
console.log('Environment recorded. Health score:', data.healthScore);
}
// Report every 5 minutes
setInterval(reportEnvironment, 5 * 60 * 1000);
```
## Step 6: Monitor Batch Progress
```typescript
// Check batch status daily
async function checkBatchProgress(batchId: string) {
// GET /api/vertical-farm/batch/{batchId}
const response = await fetch(`/api/vertical-farm/batch/${batchId}`);
const { data: batch } = await response.json();
console.log(`
Batch: ${batch.id}
Crop: ${batch.cropType}
Day: ${batch.currentDay} / ${batch.expectedDays}
Stage: ${batch.currentStage}
Health: ${batch.healthScore}%
Status: ${batch.status}
Expected Harvest: ${batch.expectedHarvestDate}
`);
// Check for issues
if (batch.issues.length > 0) {
console.log('ISSUES:');
for (const issue of batch.issues) {
console.log(`- ${issue.type}: ${issue.description}`);
}
}
// Approaching harvest?
const daysToHarvest = batch.expectedDays - batch.currentDay;
if (daysToHarvest <= 3) {
console.log('ALERT: Prepare for harvest in', daysToHarvest, 'days');
}
return batch;
}
```
## Step 7: Complete Harvest
```typescript
// POST /api/vertical-farm/batch/{batchId}/harvest
const harvestData = {
actualYieldKg: 38.5, // Exceeded expectation!
qualityGrade: 'A',
notes: 'Excellent crop. Slight overperformance due to optimal conditions.'
};
const response = await fetch(`/api/vertical-farm/batch/${batch.id}/harvest`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(harvestData)
});
const { data: harvestResult } = await response.json();
console.log('Harvest completed!');
console.log('Actual yield:', harvestResult.actualYieldKg, 'kg');
console.log('Expected yield:', harvestResult.expectedYieldKg, 'kg');
console.log('Variance:', harvestResult.yieldVariance, '%');
console.log('Quality grade:', harvestResult.qualityGrade);
/*
This automatically:
1. Records harvest in transport chain
2. Links to seed origin (full traceability)
3. Updates batch status to 'completed'
4. Frees zone for next batch
*/
```
## Step 8: View Analytics
```typescript
// GET /api/vertical-farm/{farmId}/analytics?period=30
const response = await fetch(
`/api/vertical-farm/${farm.id}/analytics?period=30`
);
const { data: analytics } = await response.json();
console.log(`
=== FARM ANALYTICS (30 days) ===
PRODUCTION
Total Yield: ${analytics.totalYieldKg} kg
Yield/sqm/year: ${analytics.yieldPerSqmPerYear} kg
Cycles Completed: ${analytics.cropCyclesCompleted}
Avg Cycle Length: ${analytics.averageCyclesDays} days
QUALITY
Avg Health Score: ${analytics.averageQualityScore}
Grade A: ${analytics.gradeAPercent}%
Wastage: ${analytics.wastagePercent}%
EFFICIENCY
Success Rate: ${analytics.cropSuccessRate}%
Space Utilization: ${analytics.spaceUtilization}%
Labor Hours/kg: ${analytics.laborHoursPerKg}
FINANCIAL
Revenue: $${analytics.revenueUsd}
Cost: $${analytics.costUsd}
Profit Margin: ${analytics.profitMarginPercent}%
Revenue/sqm: $${analytics.revenuePerSqm}
ENVIRONMENTAL
Carbon/kg: ${analytics.carbonFootprintKgPerKg} kg CO2
Water/kg: ${analytics.waterUseLPerKg} L
Energy/kg: ${analytics.energyUseKwhPerKg} kWh
TOP PERFORMERS
By Yield: ${analytics.topCropsByYield.map(c => c.crop).join(', ')}
By Revenue: ${analytics.topCropsByRevenue.map(c => c.crop).join(', ')}
`);
```
## Complete Setup Script
```typescript
// vertical-farm-setup.ts
import { getVerticalFarmController } from '@/lib/vertical-farming/controller';
async function setupVerticalFarm() {
const controller = getVerticalFarmController();
// 1. Register farm
const farm = await registerFarm();
console.log('Farm registered:', farm.id);
// 2. Configure zones
const zones = await configureZones(farm.id);
console.log('Zones configured:', zones.length);
// 3. View recipes
const recipes = controller.getRecipes();
console.log('Available recipes:', recipes.length);
// 4. Start batches for each zone
const batches = [];
for (const zone of zones) {
const recipe = selectRecipeForZone(zone, recipes);
const batch = controller.startCropBatch(
farm.id,
zone.id,
recipe.id,
`seeds-${recipe.cropType}-001`,
calculatePlantCount(zone, recipe)
);
batches.push(batch);
console.log(`Started ${recipe.cropType} in ${zone.name}`);
}
// 5. Set up monitoring
setupEnvironmentMonitoring(batches);
// 6. Schedule harvest checks
scheduleHarvestAlerts(batches);
return { farm, zones, batches };
}
// Run setup
setupVerticalFarm()
.then(({ farm, zones, batches }) => {
console.log('\n=== SETUP COMPLETE ===');
console.log(`Farm: ${farm.name}`);
console.log(`Zones: ${zones.length}`);
console.log(`Active batches: ${batches.length}`);
})
.catch(console.error);
```
## Production Schedule
With continuous operation:
```
Week 1: Start lettuce batch A (200 plants)
Week 2: Start microgreens batch A (50 trays), basil batch A (150 plants)
Week 3: Harvest microgreens A, start microgreens B
Week 4: Harvest microgreens B, start microgreens C
Week 5: Harvest lettuce A, start lettuce B
Week 6: Harvest microgreens C, basil A, start new batches
...
Continuous harvest = continuous revenue!
```
## Key Metrics to Track
| Metric | Target | Actual |
|--------|--------|--------|
| Yield/sqm/year | 60 kg | 65 kg |
| Energy/kg | 20 kWh | 15 kWh |
| Water/kg | 5 L | 4.5 L |
| Profit margin | 40% | 50% |
| Success rate | 95% | 98% |

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# Configuration Guide
Complete guide to configuring LocalGreenChain for your environment.
## Environment Variables
### Core Settings
```bash
# Server Configuration
PORT=3001 # HTTP port (default: 3001)
NODE_ENV=development # development, production, test
HOST=0.0.0.0 # Bind address
# Application
APP_NAME=LocalGreenChain # Application name
LOG_LEVEL=info # debug, info, warn, error
```
### Blockchain Settings
```bash
# Mining Configuration
BLOCKCHAIN_DIFFICULTY=3 # Proof-of-work difficulty (1-6)
AUTO_MINE=true # Auto-mine new blocks
# Chain Storage
CHAIN_FILE=data/plantchain.json
TRANSPORT_FILE=data/transport.json
```
### API Keys
```bash
# Plant Identification
PLANTS_NET_API_KEY=your_key # plants.net API for plant ID
# Geocoding
GEOCODING_PROVIDER=nominatim # nominatim, google, mapbox
GOOGLE_MAPS_API_KEY= # If using Google
MAPBOX_TOKEN= # If using Mapbox
```
### Privacy Settings
```bash
# Tor Integration
TOR_ENABLED=false # Enable Tor hidden service
TOR_SOCKS_PORT=9050 # Tor SOCKS proxy port
TOR_CONTROL_PORT=9051 # Tor control port
# Location Privacy
LOCATION_PRIVACY=city # exact, fuzzy, city, country, hidden
LOCATION_FUZZ_RADIUS_KM=5 # Radius for fuzzy locations
```
### Database Configuration
```bash
# File Storage (default)
STORAGE_TYPE=file
DATA_DIR=./data
# PostgreSQL (optional)
DATABASE_URL=postgresql://user:pass@localhost:5432/localgreenchain
# Redis Cache (optional)
REDIS_URL=redis://localhost:6379
CACHE_TTL=3600 # Cache TTL in seconds
```
### Vertical Farming
```bash
# Default Farm Settings
VF_DEFAULT_RECIPE=lettuce-butterhead
VF_ALERT_THRESHOLD=0.1 # Alert when 10% outside targets
VF_LOG_INTERVAL=300 # Environment log interval (seconds)
```
### Demand Forecasting
```bash
# Forecaster Settings
FORECAST_HORIZON_WEEKS=12 # Default forecast period
DEMAND_AGGREGATION_RADIUS=50 # Default radius in km
MIN_CONSUMERS_FOR_SIGNAL=5 # Minimum consumers for signal
```
## Configuration Files
### .env File Structure
Create `.env` in project root:
```bash
# LocalGreenChain Configuration
# Copy from .env.example and customize
#=== Server ===#
PORT=3001
NODE_ENV=development
#=== Blockchain ===#
BLOCKCHAIN_DIFFICULTY=3
#=== Privacy ===#
TOR_ENABLED=false
LOCATION_PRIVACY=city
#=== External APIs ===#
PLANTS_NET_API_KEY=
#=== Features ===#
ENABLE_TRANSPORT=true
ENABLE_DEMAND=true
ENABLE_VERTICAL_FARM=true
```
### TypeScript Configuration
`tsconfig.json` settings:
```json
{
"compilerOptions": {
"target": "ES2022",
"module": "ESNext",
"strict": true,
"paths": {
"@/*": ["./*"],
"@lib/*": ["./lib/*"],
"@components/*": ["./components/*"]
}
}
}
```
### Next.js Configuration
`next.config.js` options:
```javascript
module.exports = {
reactStrictMode: true,
swcMinify: true,
// API timeout
serverRuntimeConfig: {
apiTimeout: 30000
},
// Environment exposure
publicRuntimeConfig: {
appName: process.env.APP_NAME
}
};
```
## Feature Toggles
Enable or disable specific features:
```bash
# Core Features
ENABLE_TRANSPORT=true # Transport tracking
ENABLE_DEMAND=true # Demand forecasting
ENABLE_VERTICAL_FARM=true # Vertical farm integration
ENABLE_ENVIRONMENTAL=true # Environmental tracking
# Privacy Features
ENABLE_TOR=false # Tor hidden service
ENABLE_ANONYMOUS=true # Anonymous registration
# Experimental
ENABLE_AI_FORECAST=false # AI-powered forecasting
ENABLE_GENETICS=false # Genetic tracking
```
## Security Settings
### Authentication
```bash
# Session Management
SESSION_SECRET=your-secret-key-here
SESSION_TTL=86400 # Session lifetime (seconds)
# Rate Limiting
RATE_LIMIT_WINDOW=60000 # Window in ms
RATE_LIMIT_MAX=100 # Max requests per window
```
### CORS Configuration
```bash
# Allowed Origins
CORS_ORIGINS=http://localhost:3000,https://yourdomain.com
# CORS Options
CORS_CREDENTIALS=true
CORS_MAX_AGE=86400
```
## Performance Tuning
### For Development
```bash
# Fast iteration
BLOCKCHAIN_DIFFICULTY=1 # Quick mining
LOG_LEVEL=debug # Verbose logging
CACHE_TTL=0 # No caching
```
### For Production
```bash
# Optimized performance
BLOCKCHAIN_DIFFICULTY=4 # More secure
LOG_LEVEL=warn # Minimal logging
CACHE_TTL=3600 # 1 hour cache
NODE_ENV=production # Production optimizations
```
## Multi-Environment Setup
### Development
`.env.development`:
```bash
PORT=3001
NODE_ENV=development
BLOCKCHAIN_DIFFICULTY=2
LOG_LEVEL=debug
```
### Staging
`.env.staging`:
```bash
PORT=3001
NODE_ENV=staging
BLOCKCHAIN_DIFFICULTY=3
LOG_LEVEL=info
DATABASE_URL=postgresql://...
```
### Production
`.env.production`:
```bash
PORT=3001
NODE_ENV=production
BLOCKCHAIN_DIFFICULTY=4
LOG_LEVEL=warn
DATABASE_URL=postgresql://...
REDIS_URL=redis://...
```
## Docker Environment
### Docker Compose Override
`docker-compose.override.yml`:
```yaml
version: '3.8'
services:
app:
environment:
- PORT=3001
- NODE_ENV=production
- BLOCKCHAIN_DIFFICULTY=4
volumes:
- ./data:/app/data
```
## Validation
### Check Configuration
```bash
# Validate environment
bun run config:check
# Test configuration
bun run test:config
```
### Common Errors
| Error | Cause | Solution |
|-------|-------|----------|
| `Missing API key` | PLANTS_NET_API_KEY not set | Add key or disable feature |
| `Invalid difficulty` | Value out of range | Use 1-6 |
| `Database connection failed` | Wrong DATABASE_URL | Check credentials |
## Next Steps
- [Installation Guide](./installation.md) - Complete setup
- [Grower Guide](./grower-guide.md) - Start growing
- [Transport Guide](./transport-guide.md) - Track transport

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# Consumer Guide
How to use LocalGreenChain to find, purchase, and track local produce.
## Getting Started
### Create Your Profile
Register as a consumer to receive personalized recommendations:
```typescript
// Consumer profile
{
consumerId: "consumer-uuid",
location: {
latitude: 40.7128,
longitude: -74.0060,
maxDeliveryRadiusKm: 25,
city: "Brooklyn"
},
householdSize: 4,
weeklyBudget: 75
}
```
## Setting Your Preferences
### Food Preferences
Tell us what you like:
```typescript
POST /api/demand/preferences
{
consumerId: "your-id",
// Dietary needs
dietaryType: ["vegetarian"],
allergies: ["peanuts"],
dislikes: ["cilantro"],
// What you want
preferredCategories: [
"leafy_greens",
"herbs",
"nightshades"
],
preferredItems: [
{
produceType: "tomato",
priority: "must_have",
weeklyQuantity: 2, // kg
seasonalOnly: true
},
{
produceType: "lettuce",
priority: "preferred",
weeklyQuantity: 1
},
{
produceType: "basil",
priority: "nice_to_have"
}
],
// Quality preferences
certificationPreferences: ["organic", "local"],
freshnessImportance: 5, // 1-5 scale
priceImportance: 3,
sustainabilityImportance: 5,
// Delivery
deliveryPreferences: {
method: ["home_delivery", "farmers_market"],
frequency: "weekly",
preferredDays: ["saturday"]
}
}
```
### Priority Levels Explained
| Priority | Meaning | System Behavior |
|----------|---------|-----------------|
| `must_have` | Essential items | Prioritizes matching these first |
| `preferred` | Strong preference | Tries to include when possible |
| `nice_to_have` | Would enjoy | Adds if supply available |
| `occasional` | Sometimes interested | Suggests opportunistically |
## Finding Local Produce
### Browse Available Produce
```typescript
GET /api/plants/nearby?lat=40.7128&lon=-74.0060&radius=25
```
### View Grower Profiles
Each grower shows:
- Location and distance from you
- Available produce
- Certifications (organic, etc.)
- Delivery methods
- Customer ratings
### Check Seasonal Availability
```
SPRING (Mar-May)
├── Lettuce ✓ Available locally
├── Spinach ✓ Available locally
├── Peas ✓ Limited supply
└── Tomatoes ✗ Not in season
SUMMER (Jun-Aug)
├── Tomatoes ✓ Peak availability
├── Peppers ✓ Available locally
├── Basil ✓ Abundant
└── Cucumbers ✓ Available locally
```
## Understanding Plant History
### Scanning QR Codes
Every item from LocalGreenChain has a QR code. Scan to see:
1. **Complete Journey** - From seed to your table
2. **Growing Conditions** - Environment during growth
3. **Transport History** - Every movement tracked
4. **Carbon Footprint** - Environmental impact
5. **Grower Info** - Who grew it and where
### What You'll See
```json
{
"plantId": "lgc_abc123",
"journey": {
"seedOrigin": "Heritage Seed Bank",
"grower": "Green Valley Farm",
"location": "Brooklyn, NY",
"distance": "12 miles from you",
"harvestDate": "2024-08-01",
"daysFromHarvest": 1
},
"environmental": {
"growingMethod": "greenhouse",
"certifications": ["organic"],
"carbonFootprint": "0.15 kg CO2/kg",
"waterUsage": "10% of conventional"
},
"lineage": {
"generation": 3,
"parentPlantIds": ["plant-parent-001"],
"variety": "Cherokee Purple Heirloom"
}
}
```
## Ordering and Delivery
### Place an Order
Match with available supply:
```typescript
POST /api/demand/match
{
consumerId: "your-id",
supplyCommitmentId: "supply-123",
produceType: "tomato",
matchedQuantityKg: 2,
deliveryDate: "2024-08-03",
deliveryMethod: "home_delivery"
}
```
### Delivery Options
| Method | Description | Typical Cost |
|--------|-------------|--------------|
| `home_delivery` | Direct to your door | $$ |
| `pickup_point` | Central pickup location | $ |
| `farmers_market` | Weekly market booth | Free |
| `csa_distribution` | CSA share pickup | Subscription |
### Track Your Delivery
```typescript
GET /api/transport/journey/order-123
```
Real-time updates on:
- Current location
- Estimated arrival
- Temperature during transport
- Handler information
## Providing Feedback
### Rate Your Experience
After receiving produce:
```typescript
POST /api/feedback
{
orderId: "order-123",
rating: 5,
qualityScore: 5,
freshnessScore: 5,
feedback: "Absolutely fresh, arrived within hours of harvest!"
}
```
### Report Issues
If something isn't right:
```typescript
POST /api/feedback/issue
{
orderId: "order-123",
issueType: "quality",
description: "Lettuce was wilted on arrival",
photos: ["url-to-photo"]
}
```
## Environmental Impact
### Your Personal Impact
Track your contribution to sustainable agriculture:
```typescript
GET /api/consumer/impact/your-id
```
Response:
```json
{
"totalPurchasesKg": 45,
"carbonSavedKg": 112,
"milesSaved": 67500,
"waterSavedLiters": 4500,
"localGrowersSupported": 8,
"comparisonToConventional": {
"carbonReduction": "89%",
"waterReduction": "90%",
"foodMilesReduction": "97%"
}
}
```
### Understanding the Numbers
| Your Purchase | Conventional | LocalGreenChain | Savings |
|---------------|--------------|-----------------|---------|
| 1 kg tomatoes | 2.8 kg CO2 | 0.3 kg CO2 | 2.5 kg |
| Food miles | 1,500 miles | 12 miles | 1,488 mi |
| Water use | 50 liters | 5 liters | 45 L |
## Seasonal Planning
### Subscribe to Updates
Get notified when your favorites become available:
```typescript
POST /api/consumer/alerts
{
produceType: "strawberry",
alertType: "in_season",
notification: "email"
}
```
### Seasonal Calendar
Plan your eating around what's fresh:
```
JAN: Microgreens, Sprouts, Winter Greens
FEB: Microgreens, Early Sprouts
MAR: Lettuce, Spinach, Radishes
APR: Spring Greens, Peas, Herbs
MAY: Strawberries, Asparagus, Greens
JUN: Early Tomatoes, Cucumbers, Basil
JUL: Peak Tomatoes, Peppers, Corn
AUG: Melons, Squash, Late Tomatoes
SEP: Apples, Winter Squash, Kale
OCT: Root Vegetables, Late Greens
NOV: Storage Crops, Greens
DEC: Winter Storage, Microgreens
```
## Best Practices
### For Best Quality
1. **Order In Season** - Peak flavor and nutrition
2. **Accept Some Variation** - Farm-fresh isn't uniform
3. **Plan Ahead** - Pre-order for best selection
4. **Store Properly** - Follow storage guidelines
### For Maximum Impact
1. **Buy Local First** - Lower carbon footprint
2. **Support Small Growers** - Build community
3. **Accept Imperfect** - Reduce food waste
4. **Provide Feedback** - Help improve the system
### For Community
1. **Share with Neighbors** - Group orders reduce delivery
2. **Attend Markets** - Meet your growers
3. **Spread the Word** - Grow the network
4. **Save Seeds** - Close the loop
## Frequently Asked Questions
### How fresh is the produce?
Most items are harvested within 24-48 hours of delivery. The blockchain record shows exact harvest time.
### Is everything organic?
Not all growers are certified organic, but all practices are transparent. Check certifications in the plant profile.
### What if my order is wrong?
Contact support immediately. All issues are tracked and resolved. Our blockchain ensures accountability.
### Can I request specific varieties?
Yes! Set preferences for specific varieties. Growers see demand signals and may grow what you request.
## Next Steps
- [Grower Guide](./grower-guide.md) - Understand how your food is grown
- [Transport Guide](./transport-guide.md) - Learn about the journey
- [Quick Start](./quick-start.md) - Get started immediately

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# Grower Guide
Complete workflow guide for growers using LocalGreenChain.
## Getting Started as a Grower
### 1. Register Your Account
Navigate to the registration page and create your grower profile:
```typescript
// Grower profile includes
{
id: "grower-uuid",
name: "Green Valley Farm",
location: {
latitude: 40.7128,
longitude: -74.0060,
city: "Brooklyn",
region: "New York"
},
capacity: {
outdoorSqMeters: 500,
greenhouseSqMeters: 200,
verticalFarmSqMeters: 0
},
certifications: ["organic", "local"]
}
```
### 2. Set Up Your Growing Locations
Register each growing location:
- Outdoor plots
- Greenhouses
- Indoor growing areas
- Vertical farm zones (if applicable)
## Plant Registration Workflow
### Register Seeds
When you receive or save seeds, create a seed acquisition record:
```typescript
// Example: Register seed acquisition
POST /api/transport/seed-acquisition
{
seedBatchId: "seeds-tomato-2024-001",
sourceType: "purchase", // or "previous_harvest", "trade", "gift"
species: "Solanum lycopersicum",
variety: "Cherokee Purple",
quantity: 500,
quantityUnit: "seeds",
generation: 1,
certifications: ["organic", "heirloom"],
fromLocation: {
latitude: 38.9072,
longitude: -77.0369,
locationType: "seed_bank",
facilityName: "Heritage Seed Company"
},
toLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: "farm",
facilityName: "Green Valley Farm"
}
}
```
### Record Planting
When you plant seeds:
```typescript
// Example: Record planting event
POST /api/transport/planting
{
seedBatchId: "seeds-tomato-2024-001",
plantIds: ["plant-001", "plant-002", ...], // Auto-generated
plantingMethod: "transplant",
quantityPlanted: 50,
growingEnvironment: "greenhouse",
expectedHarvestDate: "2024-08-15",
fromLocation: { ... }, // Seed storage
toLocation: { ... } // Planting location
}
```
### Track Growing Transport
If you move plants (transplanting, hardening off):
```typescript
POST /api/transport/growing
{
plantIds: ["plant-001", "plant-002"],
reason: "transplant",
plantStage: "seedling",
handlingMethod: "potted",
rootDisturbance: "minimal"
}
```
## Responding to Demand Signals
### View Regional Demand
Check what consumers in your area need:
```typescript
GET /api/demand/signal?lat=40.7128&lon=-74.0060&radius=50
```
Response shows demand gaps:
```json
{
"demandItems": [
{
"produceType": "tomato",
"weeklyDemandKg": 180,
"gapKg": 120,
"aggregatePriority": 8,
"urgency": "this_week"
}
],
"supplyStatus": "shortage"
}
```
### Get Planting Recommendations
```typescript
GET /api/demand/recommendations?
growerId=your-id&
lat=40.7128&
lon=-74.0060&
availableSpaceSqm=100&
season=summer
```
Response includes actionable recommendations:
```json
{
"recommendations": [
{
"produceType": "tomato",
"recommendedQuantity": 50,
"expectedYieldKg": 400,
"projectedRevenue": 1800,
"plantByDate": "2024-05-15",
"overallRisk": "low",
"explanation": "Strong local demand with 120kg weekly gap..."
}
]
}
```
### Commit Supply
Register your planned production:
```typescript
POST /api/demand/supply
{
produceType: "tomato",
variety: "Cherokee Purple",
committedQuantityKg: 400,
availableFrom: "2024-08-01",
availableUntil: "2024-09-30",
pricePerKg: 4.50,
certifications: ["organic"],
deliveryRadiusKm: 50,
deliveryMethods: ["grower_delivery", "farmers_market"]
}
```
## Harvesting and Distribution
### Record Harvest
```typescript
POST /api/transport/harvest
{
plantIds: ["plant-001", "plant-002", ...],
harvestBatchId: "harvest-tomato-2024-001",
harvestType: "partial", // or "full", "continuous"
produceType: "tomatoes",
grossWeight: 45,
netWeight: 42,
weightUnit: "kg",
qualityGrade: "A",
shelfLifeHours: 168,
seedsSaved: true,
seedBatchIdCreated: "seeds-tomato-2024-002"
}
```
### Distribute to Consumers
```typescript
POST /api/transport/distribution
{
batchIds: ["harvest-tomato-2024-001"],
destinationType: "consumer",
orderId: "order-123",
customerType: "individual",
deliveryWindow: {
start: "2024-08-01T09:00:00Z",
end: "2024-08-01T12:00:00Z"
},
transportMethod: "electric_vehicle"
}
```
## Seed Saving
### Complete the Cycle
Save seeds for next generation:
```typescript
POST /api/transport/seed-saving
{
parentPlantIds: ["plant-001", "plant-005", "plant-012"],
newSeedBatchId: "seeds-tomato-2024-002",
collectionMethod: "wet_seed",
seedCount: 250,
germinationRate: 92,
storageConditions: {
temperature: 4,
humidity: 30,
lightExposure: "dark",
containerType: "vacuum_sealed",
desiccant: true,
estimatedViability: 5
},
newGenerationNumber: 2,
availableForSharing: true,
sharingTerms: "trade"
}
```
### Share Seeds
Connect with other growers:
```typescript
POST /api/transport/seed-sharing
{
seedBatchId: "seeds-tomato-2024-002",
quantityShared: 50,
quantityUnit: "seeds",
sharingType: "trade",
tradeDetails: "Exchanged for 25 seeds of Brandywine",
recipientAgreement: true,
reportBackRequired: true
}
```
## Analytics and Optimization
### View Your Environmental Impact
```typescript
GET /api/transport/footprint/your-user-id
```
Response:
```json
{
"totalCarbonKg": 12.5,
"totalFoodMiles": 245,
"carbonPerKgProduce": 0.15,
"comparisonToConventional": {
"carbonSaved": 187.5,
"milesSaved": 14755,
"percentageReduction": 94
}
}
```
### Track Plant Journeys
```typescript
GET /api/transport/journey/plant-001
```
## Best Practices
### For Maximum Impact
1. **Register Seeds Promptly** - Log as soon as you receive them
2. **Track All Movements** - Every transplant, every harvest
3. **Save Quality Seeds** - Maintain genetic diversity
4. **Respond to Demand** - Check signals weekly
5. **Commit Supply Early** - Pre-selling reduces waste
### For Quality
1. **Record Environmental Data** - Helps future planning
2. **Grade Honestly** - Build consumer trust
3. **Meet Delivery Windows** - Reliability matters
4. **Handle Gently** - Minimize transport damage
### For Community
1. **Share Seeds** - Especially rare varieties
2. **Report Results** - Help improve recommendations
3. **Connect Locally** - Build grower networks
4. **Teach Others** - Expand the ecosystem
## Data Flow Diagram
```
┌─────────────────────────────────────────────────────────────┐
│ GROWER WORKFLOW │
├─────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
│ │ SEEDS │───→│ PLANT │───→│ GROW │ │
│ │ Acquire │ │ │ │Transport │ │
│ └──────────┘ └──────────┘ └──────────┘ │
│ ↑ │ │
│ │ ▼ │
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
│ │ SAVE OR │←───│ HARVEST │←───│ MATURE │ │
│ │ SHARE │ │ │ │ │ │
│ └──────────┘ └──────────┘ └──────────┘ │
│ │ │ │
│ │ ▼ │
│ │ ┌──────────┐ ┌──────────┐ │
│ │ │DISTRIBUTE│───→│ CONSUMER │ │
│ │ │ │ │ DELIVERY │ │
│ │ └──────────┘ └──────────┘ │
│ │ │
│ └──────────→ Next Generation Begins │
│ │
└─────────────────────────────────────────────────────────────┘
```
## Next Steps
- [Transport Guide](./transport-guide.md) - Detailed transport tracking
- [Vertical Farm Guide](./vertical-farm-guide.md) - Indoor growing
- [Consumer Guide](./consumer-guide.md) - Understand your customers

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# Installation Guide
Complete installation instructions for LocalGreenChain.
## System Requirements
### Minimum Requirements
| Component | Requirement |
|-----------|-------------|
| OS | macOS, Linux, Windows (WSL2) |
| Runtime | Bun 1.0+ |
| Memory | 2GB RAM |
| Storage | 500MB free space |
| Node.js | 18+ (optional, Bun preferred) |
### Recommended
| Component | Recommendation |
|-----------|----------------|
| Memory | 4GB+ RAM |
| Storage | 2GB+ free space |
| CPU | Multi-core processor |
## Installation Methods
### Method 1: Bun (Recommended)
Bun provides the fastest installation and runtime performance.
#### Install Bun
```bash
# macOS/Linux/WSL
curl -fsSL https://bun.sh/install | bash
# Verify installation
bun --version
```
#### Clone and Install
```bash
git clone https://github.com/yourusername/localgreenchain.git
cd localgreenchain
bun install
```
#### Start Development Server
```bash
bun run dev
```
### Method 2: npm/Node.js
If you prefer npm:
```bash
git clone https://github.com/yourusername/localgreenchain.git
cd localgreenchain
npm install
npm run dev
```
### Method 3: Docker
For containerized deployment:
```bash
# Clone repository
git clone https://github.com/yourusername/localgreenchain.git
cd localgreenchain
# Build and run
docker build -t localgreenchain .
docker run -p 3001:3001 localgreenchain
```
### Method 4: Docker Compose
For full stack with optional services:
```bash
# Standard deployment
docker-compose up -d
# With Tor support
docker-compose -f docker-compose.tor.yml up -d
```
## Environment Setup
### Create Environment File
```bash
cp .env.example .env
```
### Essential Variables
```bash
# Server Configuration
PORT=3001
NODE_ENV=development
# API Keys (optional)
PLANTS_NET_API_KEY=your_api_key_here
# Privacy Options
TOR_ENABLED=false
LOCATION_PRIVACY=city # exact, fuzzy, city, country, hidden
```
### Full Configuration
See [Configuration Guide](./configuration.md) for all available options.
## Database Setup
### Default: JSON File Storage
LocalGreenChain uses JSON file storage by default:
```
data/
├── plantchain.json # Main blockchain
├── transport.json # Transport events
└── users.json # User data
```
No additional setup required - files are created automatically.
### Optional: PostgreSQL
For production deployments with high volume:
```bash
# Install PostgreSQL
sudo apt install postgresql
# Create database
createdb localgreenchain
# Configure in .env
DATABASE_URL=postgresql://user:pass@localhost:5432/localgreenchain
```
## Verification
### Check Installation
```bash
# Run tests
bun test
# Check build
bun run build
# Verify API
curl http://localhost:3001/api/plants/network
```
### Expected Output
```json
{
"success": true,
"data": {
"totalPlants": 0,
"chainLength": 1,
"difficulty": 3
}
}
```
## Platform-Specific Notes
### macOS
```bash
# Install Xcode Command Line Tools if needed
xcode-select --install
```
### Linux (Ubuntu/Debian)
```bash
# Install build essentials
sudo apt update
sudo apt install build-essential
```
### Windows (WSL2)
```bash
# Enable WSL2 first
wsl --install
# Then follow Linux instructions inside WSL
```
## Updating
### Update to Latest Version
```bash
git pull origin main
bun install
bun run build
```
### Migrate Data
Data migrations are automatic. Backup before updating:
```bash
cp -r data/ data-backup/
```
## Uninstallation
### Remove LocalGreenChain
```bash
# Stop server
# Remove directory
rm -rf localgreenchain/
# Remove global Bun packages (if installed globally)
bun remove -g localgreenchain
```
### Keep Data
To preserve your blockchain data:
```bash
cp -r data/ ~/localgreenchain-backup/
```
## Troubleshooting
### Common Issues
#### Bun Installation Fails
```bash
# Try alternative installation
npm install -g bun
# Or download binary directly
curl -fsSL https://bun.sh/install | bash -s "bun-v1.0.0"
```
#### Port Conflict
```bash
# Find process using port
lsof -i :3001
# Kill process
kill -9 <PID>
# Or use different port
PORT=3002 bun run dev
```
#### Permission Denied
```bash
# Fix permissions
chmod +x node_modules/.bin/*
```
#### Out of Memory
```bash
# Increase Node.js memory limit
export NODE_OPTIONS="--max-old-space-size=4096"
```
## Next Steps
- [Configuration Guide](./configuration.md) - Customize your setup
- [Quick Start](./quick-start.md) - Register your first plant
- [Grower Guide](./grower-guide.md) - Full grower workflow

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# Quick Start Guide
Get LocalGreenChain up and running in under 5 minutes.
## Prerequisites
- **Bun 1.0+** - Fast JavaScript runtime ([https://bun.sh](https://bun.sh))
### Installing Bun
```bash
# macOS/Linux/WSL
curl -fsSL https://bun.sh/install | bash
# Or using npm
npm install -g bun
```
## Installation
### 1. Clone the Repository
```bash
git clone https://github.com/yourusername/localgreenchain.git
cd localgreenchain
```
### 2. Install Dependencies
```bash
bun install
```
### 3. Start the Development Server
```bash
bun run dev
```
### 4. Open Your Browser
Navigate to [http://localhost:3001](http://localhost:3001)
## Your First Plant Registration
### Step 1: Navigate to Register Page
Click "Register Plant" in the navigation menu or go directly to `/plants/register`.
### Step 2: Enter Plant Details
```typescript
// Example plant data
{
commonName: "Tomato",
scientificName: "Solanum lycopersicum",
location: {
latitude: 40.7128,
longitude: -74.0060,
city: "New York",
country: "USA"
}
}
```
### Step 3: Submit and View Your Plant
After registration, you'll receive:
- A unique plant ID
- A blockchain transaction hash
- A QR code for tracking
## View Your Plant on the Network
### Check the Explorer
Navigate to `/plants/explore` to see:
- Your registered plants
- Network statistics
- Nearby plants from other growers
### View Plant Details
Click on any plant to see:
- Complete lineage history
- Transport events
- Environmental data
- QR code for scanning
## Quick API Test
Test the API directly:
```bash
# Register a plant
curl -X POST http://localhost:3001/api/plants/register \
-H "Content-Type: application/json" \
-d '{
"commonName": "Basil",
"scientificName": "Ocimum basilicum",
"location": {
"latitude": 40.7128,
"longitude": -74.0060
}
}'
# Get network stats
curl http://localhost:3001/api/plants/network
```
## Next Steps
- [Installation Guide](./installation.md) - Detailed setup options
- [Configuration Guide](./configuration.md) - Environment variables and settings
- [Grower Guide](./grower-guide.md) - Complete workflow for growers
- [Consumer Guide](./consumer-guide.md) - How to use as a consumer
## Common Issues
### Port Already in Use
```bash
# Change port in .env
PORT=3002
```
### Bun Not Found
Ensure Bun is in your PATH:
```bash
export BUN_INSTALL="$HOME/.bun"
export PATH="$BUN_INSTALL/bin:$PATH"
```
### Database Reset
To start fresh:
```bash
rm -rf data/plantchain.json
bun run dev
```
---
**Time to complete**: ~5 minutes
**Support**: Open an issue on GitHub or check [Discussions](https://github.com/yourusername/localgreenchain/discussions)

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# Transport Guide
Complete guide to recording and tracking transport events in LocalGreenChain.
## Transport Event Types
LocalGreenChain tracks 9 types of transport events covering the complete seed-to-seed lifecycle:
| Event Type | Description | When to Use |
|------------|-------------|-------------|
| `seed_acquisition` | Receiving seeds from any source | Purchasing, trading, or harvesting seeds |
| `planting` | Planting seeds or transplanting | Starting new plants |
| `growing_transport` | Moving plants during growth | Transplanting, hardening off |
| `harvest` | Collecting produce from plants | Harvest day |
| `processing` | Processing harvested produce | Washing, cutting, packaging |
| `distribution` | Moving to distribution points | To markets, hubs, restaurants |
| `consumer_delivery` | Final delivery to consumer | Last mile delivery |
| `seed_saving` | Collecting seeds from plants | End of growing cycle |
| `seed_sharing` | Sharing seeds with others | Trading, gifting seeds |
## Recording Transport Events
### Seed Acquisition
```typescript
POST /api/transport/seed-acquisition
{
// Required fields
seedBatchId: "seeds-tomato-2024-001",
sourceType: "purchase", // seed_bank, previous_harvest, trade, purchase, wild_collected, gift
species: "Solanum lycopersicum",
quantity: 500,
quantityUnit: "seeds",
generation: 1,
// Location (from → to)
fromLocation: {
latitude: 38.9072,
longitude: -77.0369,
locationType: "seed_bank",
facilityName: "Heritage Seeds"
},
toLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: "farm",
facilityName: "Green Valley Farm"
},
// Transport details
transportMethod: "local_delivery",
durationMinutes: 120,
// Optional details
variety: "Cherokee Purple",
certifications: ["organic", "heirloom"],
germinationRate: 92,
harvestDate: "2023-10-15",
geneticLineageId: "lineage-abc123"
}
```
### Planting Event
```typescript
POST /api/transport/planting
{
seedBatchId: "seeds-tomato-2024-001",
plantIds: ["plant-001", "plant-002"], // Can be auto-generated
quantityPlanted: 50,
plantingMethod: "transplant", // direct_sow, transplant, indoor_start, hydroponic, aeroponic
growingEnvironment: "greenhouse", // outdoor, greenhouse, indoor, vertical_farm
fromLocation: {
latitude: 40.7128,
longitude: -74.0060,
locationType: "greenhouse",
facilityName: "Seed Starting House"
},
toLocation: {
latitude: 40.7130,
longitude: -74.0065,
locationType: "greenhouse",
facilityName: "Growing Greenhouse"
},
expectedHarvestDate: "2024-08-15",
sowingDepth: 6, // mm
spacing: 60 // cm
}
```
### Growing Transport
For transplanting or moving plants:
```typescript
POST /api/transport/growing
{
plantIds: ["plant-001", "plant-002"],
reason: "transplant", // transplant, relocation, hardening_off, seasonal_move, upgrade_facility
plantStage: "seedling", // seed, germinating, seedling, vegetative, flowering, fruiting, mature
handlingMethod: "potted", // bare_root, potted, root_ball, hydroponic_transfer
rootDisturbance: "minimal", // none, minimal, moderate, significant
acclimatizationRequired: true,
acclimatizationDays: 7,
fromLocation: { ... },
toLocation: { ... },
transportMethod: "walking",
environmentalConditions: {
temperatureMin: 15,
temperatureMax: 22,
temperatureAvg: 18,
humidityMin: 60,
humidityMax: 80,
humidityAvg: 70,
lightExposure: "ambient"
}
}
```
### Harvest Event
```typescript
POST /api/transport/harvest
{
plantIds: ["plant-001", "plant-002"],
harvestBatchId: "harvest-2024-001",
harvestType: "full", // full, partial, continuous, selective
produceType: "tomatoes",
// Weights
grossWeight: 50,
netWeight: 47,
weightUnit: "kg",
itemCount: 200,
// Quality
qualityGrade: "A", // A, B, C, processing
qualityNotes: "Excellent color and firmness",
// Storage requirements
packagingType: "cardboard_flat",
temperatureRequired: {
min: 10,
max: 15,
optimal: 12,
unit: "celsius"
},
shelfLifeHours: 168,
// Seed saving
seedsSaved: true,
seedBatchIdCreated: "seeds-tomato-2024-002",
fromLocation: { ... },
toLocation: { ... }
}
```
### Distribution Event
```typescript
POST /api/transport/distribution
{
batchIds: ["harvest-2024-001"],
destinationType: "market", // consumer, market, restaurant, processor, distributor, vertical_farm
customerType: "business", // individual, business, cooperative, institution
orderId: "order-456",
deliveryWindow: {
start: "2024-08-02T06:00:00Z",
end: "2024-08-02T08:00:00Z"
},
deliveryAttempts: 1,
handoffVerified: true,
recipientName: "Brooklyn Farmers Market",
transportMethod: "electric_vehicle",
fromLocation: { ... },
toLocation: { ... }
}
```
### Seed Saving Event
```typescript
POST /api/transport/seed-saving
{
parentPlantIds: ["plant-001", "plant-005"],
newSeedBatchId: "seeds-tomato-2024-002",
// Collection details
collectionMethod: "wet_seed", // dry_seed, wet_seed, fermentation, threshing
seedCount: 250,
seedWeight: 15,
seedWeightUnit: "grams",
// Quality testing
viabilityTestDate: "2024-08-20",
germinationRate: 94,
purityPercentage: 98,
// Storage
storageConditions: {
temperature: 4,
humidity: 30,
lightExposure: "dark",
containerType: "vacuum_sealed",
desiccant: true,
estimatedViability: 5 // years
},
storageLocationId: "storage-vault-001",
// Lineage
newGenerationNumber: 2,
geneticNotes: "Selected for disease resistance and flavor",
// Sharing
availableForSharing: true,
sharingTerms: "trade"
}
```
## Carbon Footprint Calculation
### Carbon Factors by Transport Method
| Method | kg CO2 per km per kg |
|--------|---------------------|
| walking | 0 |
| bicycle | 0 |
| electric_vehicle | 0.02 |
| hybrid_vehicle | 0.08 |
| gasoline_vehicle | 0.12 |
| diesel_truck | 0.15 |
| electric_truck | 0.03 |
| refrigerated_truck | 0.25 |
| rail | 0.01 |
| ship | 0.008 |
| air | 0.5 |
| drone | 0.01 |
| local_delivery | 0.05 |
| customer_pickup | 0.1 |
### Calculation Formula
```
Carbon (kg CO2) = Factor × Distance (km) × Weight (kg)
```
### Example
```
Tomatoes: 20 kg
Distance: 25 km
Method: electric_vehicle (factor: 0.02)
Carbon = 0.02 × 25 × 20 = 10 kg CO2
```
## Querying Transport Data
### Get Plant Journey
```typescript
GET /api/transport/journey/plant-001
```
Response:
```json
{
"plantId": "plant-001",
"seedBatchOrigin": "seeds-tomato-2024-001",
"currentStage": "harvesting",
"events": [...],
"totalFoodMiles": 45,
"totalCarbonKg": 2.5,
"daysGrowing": 85,
"generation": 1,
"ancestorPlantIds": []
}
```
### Get Environmental Impact
```typescript
GET /api/transport/footprint/user-123
```
Response:
```json
{
"totalCarbonKg": 45.5,
"totalFoodMiles": 320,
"carbonPerKgProduce": 0.18,
"breakdownByMethod": {
"electric_vehicle": { "distance": 200, "carbon": 20 },
"walking": { "distance": 50, "carbon": 0 }
},
"comparisonToConventional": {
"carbonSaved": 580,
"milesSaved": 22500,
"percentageReduction": 93
}
}
```
### Verify Block
```typescript
GET /api/transport/verify/abc123def456
```
## QR Code Integration
### Generate QR Data
```typescript
GET /api/transport/qr/plant-001
```
Response:
```json
{
"plantId": "plant-001",
"blockchainAddress": "0x1234...",
"quickLookupUrl": "https://localgreenchain.org/track/plant-001",
"lineageHash": "sha256...",
"currentCustodian": "grower-123",
"lastEventType": "harvest",
"verificationCode": "A1B2C3D4"
}
```
## Data Flow Diagram
```
┌─────────────────────────────────────────────────────────────────────┐
│ TRANSPORT DATA FLOW │
├─────────────────────────────────────────────────────────────────────┤
│ │
│ ┌───────────┐ │
│ │ SEED │ seed_acquisition │
│ │ ACQUISITION│────────────┐ │
│ └───────────┘ │ │
│ │ ▼ │
│ │ ┌───────────────┐ │
│ │ │ TRANSPORT │ │
│ │ │ CHAIN │ │
│ │ │ BLOCKCHAIN │ │
│ │ └───────┬───────┘ │
│ ▼ │ │
│ ┌───────────┐ │ │
│ │ PLANTING │─────────────┤ planting │
│ └───────────┘ │ │
│ │ │ │
│ ▼ │ │
│ ┌───────────┐ │ │
│ │ GROWING │─────────────┤ growing_transport │
│ │ TRANSPORT │ │ │
│ └───────────┘ │ │
│ │ │ │
│ ▼ │ │
│ ┌───────────┐ │ │
│ │ HARVEST │─────────────┤ harvest │
│ └───────────┘ │ │
│ │ │ │
│ ├───────────────┐ │ │
│ ▼ ▼ │ │
│ ┌───────────┐ ┌─────────┐│ │
│ │DISTRIBUTE │ │ SEED ││ distribution / seed_saving │
│ │ │ │ SAVING ││─────────────────────────────────────────│
│ └───────────┘ └─────────┘│ │
│ │ │ │ │
│ ▼ ▼ │ │
│ ┌───────────┐ ┌─────────┐│ │
│ │ CONSUMER │ │ SEED ││ consumer_delivery / seed_sharing │
│ │ DELIVERY │ │ SHARING ││ │
│ └───────────┘ └─────────┘│ │
│ │ │ │
│ └─────┼──→ Next Generation │
│ │ │
└────────────────────────────┴─────────────────────────────────────────┘
```
## Best Practices
### Recording Events
1. **Be Timely** - Record events as they happen
2. **Be Accurate** - Correct coordinates and weights
3. **Be Complete** - Include all optional fields when possible
4. **Verify Locations** - Double-check GPS coordinates
### Transport Methods
1. **Choose Low Carbon** - Electric and human-powered preferred
2. **Combine Trips** - Reduce total distance
3. **Optimize Routes** - Shortest path reduces footprint
4. **Use Local First** - Minimize distance overall
### Quality Assurance
1. **Track Conditions** - Temperature, humidity, handling
2. **Note Issues** - Record any problems immediately
3. **Grade Honestly** - Accurate quality ratings
4. **Verify Handoffs** - Confirm custody changes
## Next Steps
- [Grower Guide](./grower-guide.md) - Complete grower workflow
- [Consumer Guide](./consumer-guide.md) - Consumer perspective
- [Vertical Farm Guide](./vertical-farm-guide.md) - Indoor growing

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# Vertical Farm Operator Guide
Complete guide for managing vertical farming operations with LocalGreenChain.
## Getting Started
### Register Your Farm
```typescript
POST /api/vertical-farm/register
{
name: "Urban Greens VF",
ownerId: "owner-123",
location: {
latitude: 40.7128,
longitude: -74.0060,
address: "123 Industrial Blvd",
city: "Brooklyn",
country: "USA",
timezone: "America/New_York"
},
specs: {
totalAreaSqm: 500,
growingAreaSqm: 400,
numberOfLevels: 4,
ceilingHeightM: 4,
totalGrowingPositions: 5000,
powerCapacityKw: 150,
waterStorageL: 10000,
backupPowerHours: 24,
certifications: ["gap", "local_food_safety"],
buildingType: "warehouse",
insulation: "high_efficiency"
},
automationLevel: "semi_automated"
}
```
## Zone Configuration
### Create Growing Zones
```typescript
POST /api/vertical-farm/{farmId}/zones
{
name: "Zone A - Leafy Greens",
level: 1,
areaSqm: 100,
lengthM: 20,
widthM: 5,
growingMethod: "NFT", // NFT, DWC, ebb_flow, aeroponics, vertical_towers, rack_system
plantPositions: 1200,
environmentTargets: {
temperatureC: { min: 18, max: 24, target: 21 },
humidityPercent: { min: 55, max: 75, target: 65 },
co2Ppm: { min: 800, max: 1400, target: 1000 },
lightPpfd: { min: 200, max: 400, target: 300 },
lightHours: 16,
nutrientEc: { min: 1.2, max: 1.8, target: 1.5 },
nutrientPh: { min: 5.5, max: 6.5, target: 6.0 },
waterTempC: { min: 18, max: 22, target: 20 }
}
}
```
### Zone Growing Methods
| Method | Best For | Water Use | Complexity |
|--------|----------|-----------|------------|
| NFT | Leafy greens, herbs | Low | Medium |
| DWC | Lettuce, basil | Medium | Low |
| Aeroponics | High-value crops | Very Low | High |
| Vertical Towers | Microgreens, strawberries | Low | Medium |
| Rack System | Microgreens | Low | Low |
## Growing Recipes
### Available Default Recipes
```typescript
GET /api/vertical-farm/recipes
// Returns:
[
{
id: "recipe-lettuce-butterhead",
name: "Butterhead Lettuce - Fast Cycle",
expectedDays: 35,
expectedYieldGrams: 180,
expectedYieldPerSqm: 4000
},
{
id: "recipe-basil-genovese",
name: "Genovese Basil - Aromatic",
expectedDays: 42,
expectedYieldGrams: 120
},
{
id: "recipe-microgreens-mix",
name: "Microgreens Mix - Quick Turn",
expectedDays: 14,
expectedYieldGrams: 200
}
]
```
### Recipe Stages
Each recipe defines stages with specific environment targets:
```typescript
// Lettuce example stages
[
{
name: "Germination",
daysStart: 0,
daysEnd: 3,
temperature: { day: 20, night: 18 },
humidity: { day: 80, night: 85 },
co2Ppm: 800,
lightHours: 18,
lightPpfd: 150,
targetEc: 0.8,
targetPh: 6.0
},
{
name: "Seedling",
daysStart: 4,
daysEnd: 10,
temperature: { day: 21, night: 18 },
humidity: { day: 70, night: 75 },
lightPpfd: 200,
targetEc: 1.2
},
{
name: "Vegetative Growth",
daysStart: 11,
daysEnd: 28,
lightPpfd: 300,
targetEc: 1.6
},
{
name: "Finishing",
daysStart: 29,
daysEnd: 35,
lightPpfd: 250,
targetEc: 1.2
}
]
```
## Batch Management
### Start a Crop Batch
```typescript
POST /api/vertical-farm/batch/start
{
farmId: "farm-123",
zoneId: "zone-a",
recipeId: "recipe-lettuce-butterhead",
seedBatchId: "seeds-lettuce-001",
plantCount: 200
}
```
Response:
```json
{
"batchId": "batch-abc123",
"plantingDate": "2024-06-01T08:00:00Z",
"expectedHarvestDate": "2024-07-06T08:00:00Z",
"expectedYieldKg": 36,
"plantIds": ["batch-abc123-plant-0", "..."]
}
```
### Monitor Batch Progress
```typescript
GET /api/vertical-farm/batch/{batchId}
```
Response:
```json
{
"id": "batch-abc123",
"currentDay": 15,
"currentStage": "Vegetative Growth",
"healthScore": 95,
"status": "growing",
"expectedHarvestDate": "2024-07-06",
"issues": []
}
```
### Record Environment Readings
```typescript
PUT /api/vertical-farm/batch/{batchId}/environment
{
timestamp: "2024-06-15T12:00:00Z",
temperatureC: 21.5,
humidityPercent: 68,
co2Ppm: 1050,
ppfd: 295,
dli: 17.0,
waterTempC: 19.5,
ec: 1.55,
ph: 6.1,
dissolvedOxygenPpm: 8.2,
airflowMs: 0.5
}
```
### Complete Harvest
```typescript
POST /api/vertical-farm/batch/{batchId}/harvest
{
actualYieldKg: 38.5,
qualityGrade: "A",
notes: "Excellent crop, slight overperformance on yield"
}
```
## Environment Monitoring
### Alert Types
| Alert Type | Trigger | Severity |
|------------|---------|----------|
| `low` | Below minimum target | Warning |
| `high` | Above maximum target | Warning |
| `critical_low` | >5 below minimum | Critical |
| `critical_high` | >5 above maximum | Critical |
| `sensor_fault` | Sensor malfunction | Critical |
### Alert Response
```
┌─────────────────────────────────────────┐
│ ENVIRONMENT ALERT │
├─────────────────────────────────────────┤
│ │
│ Parameter: Temperature │
│ Current: 28°C │
│ Target: 21°C (max: 24°C) │
│ Type: HIGH │
│ │
│ Recommended Actions: │
│ 1. Check HVAC system status │
│ 2. Verify ventilation is operational │
│ 3. Consider reducing light intensity │
│ 4. Check for blocked airflow │
│ │
└─────────────────────────────────────────┘
```
### Health Score Impact
| Condition | Health Score Impact |
|-----------|---------------------|
| No alerts | No change |
| Minor alert | -1 point |
| Critical alert | -5 points |
| Extended critical | -10 points/day |
## Analytics
### View Farm Analytics
```typescript
GET /api/vertical-farm/{farmId}/analytics?period=30
```
Response:
```json
{
"farmId": "farm-123",
"period": "30 days",
"production": {
"totalYieldKg": 450,
"yieldPerSqmPerYear": 4100,
"cropCyclesCompleted": 12,
"averageCycleDays": 28
},
"quality": {
"averageQualityScore": 92,
"gradeAPercent": 85,
"wastagePercent": 4.5
},
"efficiency": {
"cropSuccessRate": 98,
"spaceUtilization": 88,
"laborHoursPerKg": 0.3
},
"financial": {
"revenueUsd": 9000,
"costUsd": 4500,
"profitMarginPercent": 50,
"revenuePerSqm": 22.50
},
"environmental": {
"carbonFootprintKgPerKg": 0.28,
"waterUseLPerKg": 4.5,
"energyUseKwhPerKg": 15
},
"topCrops": {
"byYield": ["lettuce", "basil", "microgreens"],
"byRevenue": ["basil", "lettuce", "microgreens"],
"byEfficiency": ["microgreens", "lettuce", "basil"]
}
}
```
## Integration with Demand
### Respond to Demand Signals
```typescript
// Check regional demand
GET /api/demand/signal?lat=40.7128&lon=-74.0060&radius=25
// Find gaps you can fill
{
"demandItems": [
{
"produceType": "lettuce",
"gapKg": 50,
"urgency": "this_week"
}
]
}
// Start batch to fill demand
POST /api/vertical-farm/batch/start
{
recipeId: "recipe-lettuce-butterhead",
plantCount: 280 // To produce ~50kg
}
```
### Commit Supply
```typescript
POST /api/demand/supply
{
produceType: "lettuce",
variety: "butterhead",
committedQuantityKg: 50,
availableFrom: "2024-07-06",
freshnessGuaranteeHours: 24,
certifications: ["local_food_safety"]
}
```
## Blockchain Recording
Every batch creates transport events:
```
Seed Acquisition → Transport recorded
↓
Planting Event → Transport recorded
↓
Environment Logs → Stored with batch
↓
Harvest Event → Transport recorded
↓
Distribution → Transport recorded
```
Consumers can scan QR codes to see:
- Exact growing conditions
- Recipe used
- Environment history
- Seed lineage
## Best Practices
### For Operators
1. **Calibrate Regularly** - Sensors need weekly checks
2. **Follow Recipes** - Don't deviate without reason
3. **Log Everything** - Data enables optimization
4. **Respond to Alerts** - Quick action prevents losses
5. **Maintain Equipment** - Preventive > reactive
### For Efficiency
1. **Stagger Batches** - Continuous harvest flow
2. **Match Demand** - Check signals before planting
3. **Optimize Light** - Biggest energy cost
4. **Recirculate Water** - >95% reuse target
5. **Track KPIs** - What gets measured improves
### For Quality
1. **Start Clean** - Sanitize between batches
2. **Monitor Daily** - Catch issues early
3. **Harvest at Peak** - Don't over-mature
4. **Temperature Chain** - Maintain cold chain
5. **Grade Honestly** - Quality builds trust
## Troubleshooting
### Common Issues
| Issue | Possible Causes | Solutions |
|-------|-----------------|-----------|
| Low yield | Light too low, nutrients off | Check PPFD, EC levels |
| Tip burn | High EC, low calcium | Reduce nutrients, add CalMag |
| Bolting | Temperature too high | Reduce temp, increase airflow |
| Root rot | Low oxygen, warm water | Add air stones, cool reservoir |
| Slow growth | Low CO2, wrong temp | Check CO2 injection, adjust HVAC |
### Emergency Procedures
```
POWER FAILURE:
1. Backup power should engage automatically
2. Reduce light intensity if on battery
3. Maintain water circulation priority
4. Alert on-call technician
HVAC FAILURE:
1. Reduce light intensity immediately
2. Open vents for passive cooling
3. Mist plants if temperature rising
4. Call HVAC service
WATER LEAK:
1. Shut off main water supply
2. Isolate affected zone
3. Salvage plants if possible
4. Document for insurance
```
## Resource Efficiency
### Energy Optimization
| Component | % of Total | Optimization |
|-----------|------------|--------------|
| Lighting | 50-60% | LED efficacy, DLI optimization |
| HVAC | 20-30% | Heat pump, recovery systems |
| Pumps | 5-10% | Variable speed drives |
| Other | 5-10% | Automation, scheduling |
### Water Conservation
- Target: >95% water recirculation
- Condensate recovery from HVAC
- Rainwater collection if available
- RO reject water for non-crop use
## Next Steps
- [Grower Guide](./grower-guide.md) - Traditional growing
- [Transport Guide](./transport-guide.md) - Tracking transport
- [Consumer Guide](./consumer-guide.md) - Consumer perspective

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# Automation Systems
Automating vertical farm operations for efficiency and consistency.
## Automation Levels
### Manual Operation
```
Human → Observe → Decide → Act → Monitor
Pros: Low cost, flexible
Cons: Labor intensive, inconsistent, human error
Best for: Small hobbyist operations
```
### Semi-Automated
```
Sensors → Alert → Human Decision → Automated Action
Pros: Reduced labor, consistent execution
Cons: Still requires monitoring, delayed response
Best for: Small-medium commercial operations
```
### Fully Automated
```
Sensors → Controller → Algorithm → Action → Verify
Pros: 24/7 operation, optimal control, data-driven
Cons: High upfront cost, requires expertise
Best for: Commercial production facilities
```
## Control System Architecture
```
┌─────────────────────────────────────────────────────────────────┐
│ AUTOMATION ARCHITECTURE │
├─────────────────────────────────────────────────────────────────┤
│ │
│ LAYER 4: BUSINESS INTELLIGENCE │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Analytics │ Forecasting │ Optimization │ Reporting │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │ │
│ LAYER 3: SUPERVISORY CONTROL │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Recipe Management │ Scheduling │ Alarm Management │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │ │
│ LAYER 2: ZONE CONTROLLERS │
│ ┌────────────┐ ┌────────────┐ ┌────────────┐ ┌────────────┐ │
│ │ Zone A │ │ Zone B │ │ Zone C │ │ Zone D │ │
│ │ Controller │ │ Controller │ │ Controller │ │ Controller │ │
│ └────────────┘ └────────────┘ └────────────┘ └────────────┘ │
│ │ │
│ LAYER 1: FIELD DEVICES │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Sensors │ Actuators │ Valves │ Pumps │ Lights │ HVAC │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Automated Systems
### Lighting Automation
```typescript
interface LightingAutomation {
// Photoperiod control
schedule: {
onTime: string; // "06:00"
offTime: string; // "22:00"
rampUp: number; // minutes to full brightness
rampDown: number; // minutes to off
};
// Intensity control
intensity: {
mode: 'fixed' | 'dli_target' | 'adaptive';
targetDLI?: number;
maxPPFD: number;
};
// Spectrum control (tunable LEDs)
spectrum: {
vegetative: { blue: 30, red: 60, farRed: 10 };
flowering: { blue: 20, red: 70, farRed: 10 };
auto_switch_day?: number; // Day to switch
};
}
```
### Irrigation Automation
```typescript
interface IrrigationAutomation {
// Timing-based
schedule: {
intervalsPerDay: number;
duration: number; // seconds
times: string[]; // ["06:00", "12:00", "18:00"]
};
// Sensor-based triggers
triggers: {
minMoisturePercent?: number; // Start irrigation below this
maxMoisturePercent?: number; // Stop irrigation above this
ecThreshold?: number; // Flush if EC too high
};
// Flow control
flowRate: number; // L/min
maxDuration: number; // Safety limit
}
```
### Nutrient Dosing Automation
```typescript
interface DosingAutomation {
targetEC: number;
targetPH: number;
// PID control parameters
ec_pid: { kp: 0.5, ki: 0.1, kd: 0.05 };
ph_pid: { kp: 0.3, ki: 0.05, kd: 0.02 };
// Dosing limits
maxDoseML: number; // Per adjustment
minDoseInterval: number; // Seconds between doses
mixTime: number; // Seconds to wait after dosing
// Stock solution mappings
ecUp: string[]; // ["nutrient_a", "nutrient_b"]
ecDown: string[]; // ["fresh_water"]
phUp: string; // "ph_up"
phDown: string; // "ph_down"
}
```
### Climate Automation
```typescript
interface ClimateAutomation {
// Temperature control
cooling: {
stage1_offset: 1; // First stage at target + 1°C
stage2_offset: 2;
stage3_offset: 3;
};
heating: {
stage1_offset: -1;
stage2_offset: -2;
};
// Humidity control
humidify_below: number;
dehumidify_above: number;
// CO2 control
co2: {
inject_below: number;
stop_above: number;
only_when_lights_on: boolean;
};
// Ventilation
ventilation: {
outdoor_temp_min: number; // Don't vent if too cold
outdoor_temp_max: number; // Don't vent if too hot
humidity_threshold: number;
};
}
```
## Recipe-Driven Automation
### How Recipes Control Automation
```
Recipe Definition
│
▼
┌─────────────────┐
│ Current Day │ ─────────→ Stage Lookup
│ of Crop Batch │
└─────────────────┘
│
▼
┌─────────────────┐
│ Stage Settings │
│ - Temperature │
│ - Humidity │
│ - Light PPFD │
│ - Light hours │
│ - EC target │
│ - pH target │
│ - CO2 level │
└────────┬────────┘
│
┌────────────┴────────────┐
▼ ▼
┌──────────────┐ ┌──────────────┐
│ Update Zone │ │ Update Zone │
│ Setpoints │ │ Light Schedule│
└──────────────┘ └──────────────┘
│ │
▼ ▼
Controllers adjust Light timers
to new targets updated
```
### Stage Transition Automation
```typescript
function updateBatchStage(batch: CropBatch): void {
const recipe = getRecipe(batch.recipeId);
const currentDay = calculateDay(batch.plantingDate);
// Find current stage
const stage = recipe.stages.find(s =>
currentDay >= s.daysStart && currentDay <= s.daysEnd
);
if (stage && stage.name !== batch.currentStage) {
// Stage has changed!
batch.currentStage = stage.name;
// Update zone setpoints
updateZoneTargets(batch.zoneId, stage);
// Trigger any stage actions
executeStageActions(batch, stage, currentDay);
// Log transition
logEvent('stage_transition', batch.id, stage.name);
}
}
```
## Robotics Integration
### Seeding Automation
```
┌─────────────────────────────────────────────────────────────┐
│ SEEDING AUTOMATION │
├─────────────────────────────────────────────────────────────┤
│ │
│ 1. Tray Loading │
│ Robot arm places empty trays on conveyor │
│ │
│ 2. Media Filling │
│ Automated hopper fills trays with growing media │
│ │
│ 3. Seed Placement │
│ Precision seeder places seeds at correct spacing │
│ Vision system verifies placement │
│ │
│ 4. Cover/Press │
│ Automated press firms seeds into media │
│ Vermiculite cover applied │
│ │
│ 5. Labeling │
│ QR code applied linking to blockchain record │
│ │
│ 6. Transport │
│ Automated cart moves to germination zone │
│ │
└─────────────────────────────────────────────────────────────┘
```
### Transplanting Automation
```typescript
interface TransplantRobot {
type: 'robotic_arm' | 'gantry' | 'mobile';
capabilities: {
seedlingsPerHour: number;
success_rate: number; // 95%+
plant_spacing_accuracy: number; // ±2mm
};
integration: {
vision_system: boolean; // For plant detection
force_feedback: boolean; // Gentle handling
api_endpoint: string; // LocalGreenChain integration
};
}
```
### Harvesting Automation
| Crop Type | Automation Method | Speed | Accuracy |
|-----------|-------------------|-------|----------|
| Microgreens | Blade cut | Fast | High |
| Lettuce | Root cut + vacuum | Medium | High |
| Basil | Selective picking | Slow | Medium |
| Tomatoes | Vision + gripper | Slow | High |
## Scheduling System
### Batch Scheduling
```typescript
interface BatchScheduler {
// Calculate optimal start dates
calculatePlantingDate(
recipe: GrowingRecipe,
targetHarvestDate: Date,
zoneAvailability: ZoneCalendar
): Date;
// Optimize zone utilization
optimizeZoneAssignment(
batches: CropBatch[],
zones: GrowingZone[]
): Assignment[];
// Handle conflicts
resolveConflicts(
pending: CropBatch[],
capacity: number
): Resolution;
}
```
### Maintenance Scheduling
```typescript
const maintenanceSchedule = {
daily: [
{ task: 'sensor_check', duration: 15 },
{ task: 'visual_inspection', duration: 30 }
],
weekly: [
{ task: 'calibrate_ph', duration: 30 },
{ task: 'calibrate_ec', duration: 30 },
{ task: 'filter_check', duration: 15 }
],
monthly: [
{ task: 'deep_clean', duration: 240 },
{ task: 'sensor_calibration', duration: 60 },
{ task: 'equipment_service', duration: 120 }
]
};
```
## Data-Driven Optimization
### Machine Learning Integration
```
Historical Data
│
├── Environmental readings
├── Crop performance
├── Energy usage
└── Yield data
│
▼
┌─────────────────────┐
│ ML Models │
│ │
│ - Yield prediction │
│ - Recipe optimization│
│ - Anomaly detection │
│ - Energy optimization│
└─────────────────────┘
│
▼
┌─────────────────────┐
│ Recommendations │
│ │
│ - Adjust setpoints │
│ - Modify recipes │
│ - Predict issues │
└─────────────────────┘
```
### Optimization Targets
| Metric | Optimization Method |
|--------|---------------------|
| Yield | Adjust PPFD, DLI, nutrients |
| Quality | Fine-tune environment |
| Energy | Shift operations off-peak |
| Water | Optimize irrigation timing |
| Labor | Batch scheduling |
## API Integration
### LocalGreenChain Integration
```typescript
// Automation system reports to LocalGreenChain
async function reportEnvironment(
batchId: string,
readings: EnvironmentReading
): Promise<void> {
await fetch('/api/vertical-farm/batch/{batchId}/environment', {
method: 'PUT',
body: JSON.stringify(readings)
});
}
// Automation receives commands from LocalGreenChain
async function fetchSetpoints(zoneId: string): Promise<Setpoints> {
const response = await fetch(`/api/vertical-farm/zone/${zoneId}/setpoints`);
return response.json();
}
```
## Best Practices
### Reliability
1. **Redundancy** - Backup sensors, dual pumps
2. **Fail-safes** - Default to safe state on failure
3. **Monitoring** - 24/7 alerting
4. **Testing** - Regular system tests
5. **Documentation** - Keep procedures updated
### Security
1. **Access control** - Role-based permissions
2. **Audit logging** - Track all changes
3. **Network security** - Segmented OT network
4. **Updates** - Regular firmware patches
5. **Backups** - Configuration backups

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# Environmental Control Systems
Deep dive into vertical farm environmental management.
## Overview
Environmental control is the heart of vertical farming. Unlike outdoor agriculture, every parameter is controllable and optimizable.
```
┌─────────────────────────────────────────────────────────────────┐
│ ENVIRONMENTAL CONTROL SYSTEM │
├─────────────────────────────────────────────────────────────────┤
│ │
│ ┌────────────┐ ┌────────────┐ ┌────────────┐ │
│ │TEMPERATURE │ │ HUMIDITY │ │ CO2 │ │
│ │ Control │ │ Control │ │ Control │ │
│ │ │ │ │ │ │ │
│ │ HVAC │ │ Humidifier │ │ Injection │ │
│ │ Heat Pump │ │ Dehumid. │ │ Generator │ │
│ └─────┬──────┘ └─────┬──────┘ └─────┬──────┘ │
│ │ │ │ │
│ └─────────────────┼─────────────────┘ │
│ │ │
│ ┌─────▼─────┐ │
│ │ CENTRAL │ │
│ │ CONTROLLER│ │
│ └─────┬─────┘ │
│ │ │
│ ┌─────────────────┼─────────────────┐ │
│ │ │ │ │
│ ┌─────▼──────┐ ┌─────▼─────┐ ┌─────▼──────┐ │
│ │ LIGHTING │ │ WATER │ │ NUTRIENTS │ │
│ │ Control │ │ Control │ │ Control │ │
│ │ │ │ │ │ │ │
│ │ LEDs │ │ Irrigation │ │ Dosing │ │
│ │ Spectrum │ │ pH adjust │ │ EC monitor │ │
│ └────────────┘ └────────────┘ └────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Temperature Control
### Target Ranges by Crop Type
| Crop Category | Day Temp (°C) | Night Temp (°C) | Differential |
|---------------|---------------|-----------------|--------------|
| Leafy Greens | 18-22 | 15-18 | 3-5°C |
| Herbs | 20-25 | 18-22 | 2-4°C |
| Fruiting | 22-28 | 18-22 | 4-6°C |
| Microgreens | 18-21 | 16-19 | 2-3°C |
### Control Strategies
```typescript
interface TemperatureControl {
mode: 'manual' | 'scheduled' | 'adaptive' | 'ai_optimized';
// Setpoints
daySetpoint: number;
nightSetpoint: number;
// Deadband (prevent oscillation)
deadband: number; // ±1°C typical
// Control outputs
coolingStage: 0 | 1 | 2 | 3; // Multi-stage cooling
heatingStage: 0 | 1 | 2 | 3; // Multi-stage heating
}
```
### HVAC Systems
| System Type | Pros | Cons | Best For |
|-------------|------|------|----------|
| Split AC | Low cost | Limited capacity | Small rooms |
| Mini-split | Zoned control | Moderate cost | Medium facilities |
| Heat Pump | Efficient, heat recovery | Higher upfront | Production facilities |
| Chilled Water | Scalable, precise | Complex, expensive | Large operations |
## Humidity Control
### Vapor Pressure Deficit (VPD)
VPD is the key metric for plant transpiration:
```
VPD = Saturation Pressure - Actual Vapor Pressure
Optimal VPD by Stage:
- Seedling: 0.4-0.8 kPa (high humidity)
- Vegetative: 0.8-1.2 kPa (moderate)
- Flowering: 1.0-1.5 kPa (lower humidity)
```
### VPD Calculation
```typescript
function calculateVPD(tempC: number, humidityPercent: number): number {
// Saturation vapor pressure (Tetens equation)
const svp = 0.6108 * Math.exp((17.27 * tempC) / (tempC + 237.3));
// Actual vapor pressure
const avp = svp * (humidityPercent / 100);
// VPD in kPa
return svp - avp;
}
```
### Humidification Methods
| Method | Droplet Size | Coverage | Energy | Best For |
|--------|-------------|----------|--------|----------|
| Misting | 20-50 µm | Wide | Low | Propagation |
| Ultrasonic | 1-5 µm | Targeted | Low | Small zones |
| Fog | 5-20 µm | Wide | Medium | Large areas |
| Evaporative | N/A | Wide | Low | Arid climates |
### Dehumidification
```
Sources of Humidity:
├── Plant transpiration: 95%+ of water uptake
├── Irrigation: Evaporation from growing media
├── Human activity: Breathing, sweating
└── Fresh air: Outdoor humidity
Removal Methods:
├── HVAC: Condenses on evaporator coil
├── Dedicated dehumidifier: Efficient for high loads
├── Desiccant: Continuous, no condensate
└── Ventilation: If outdoor humidity lower
```
## CO2 Enrichment
### Why Enrich?
```
Ambient CO2: ~420 ppm
Optimal Growth: 800-1200 ppm
Maximum Benefit: 1500 ppm
Photosynthesis increases ~30-50% with enrichment
```
### CO2 Sources
| Source | Cost | Control | Safety | Best For |
|--------|------|---------|--------|----------|
| Tank (compressed) | Medium | Excellent | Safe | Small/medium |
| Generator (propane) | Low | Good | Heat/humidity | Sealed rooms |
| Fermentation | Very low | Poor | Safe | Hobby |
| Air capture | High | Excellent | Safe | Large scale |
### Control Strategy
```typescript
interface CO2Control {
targetPpm: number;
hysteresis: number; // ±50 ppm typical
// Only enrich when lights on
enrichDuringLightsOnly: boolean;
// Integration with ventilation
pauseDuringVentilation: boolean;
// Safety limits
maxPpm: 2000; // Worker safety
alarmPpm: 1800;
}
```
## Lighting Systems
### Light Spectrum
```
Wavelength Ranges:
├── UV-A (315-400nm): Compact growth, secondary metabolites
├── Blue (400-500nm): Vegetative growth, compact structure
├── Green (500-565nm): Canopy penetration
├── Red (620-700nm): Photosynthesis, flowering
└── Far-Red (700-800nm): Shade avoidance, flowering
Optimal Ratios (general):
- Vegetative: Blue 30%, Red 60%, Other 10%
- Flowering: Blue 20%, Red 70%, Other 10%
```
### LED Fixture Types
| Type | Spectrum | Efficiency | Cost | Best For |
|------|----------|------------|------|----------|
| Full Spectrum | White + Red/Blue | Good | Low | General |
| Red/Blue | Optimized peaks | High | Medium | Leafy greens |
| Tunable | Adjustable | Good | High | Research, multi-crop |
| Sunlight Replica | Full PAR + UV | Excellent | Very High | Premium produce |
### Light Metrics
```
PPFD (µmol/m²/s): Instantaneous light intensity
DLI (mol/m²/day): Daily light integral = PPFD × hours × 3600 / 1,000,000
Targets by Crop:
├── Microgreens: DLI 8-12
├── Lettuce: DLI 12-17
├── Basil: DLI 15-20
├── Tomatoes: DLI 22-30
└── Cannabis: DLI 40-65
```
## Nutrient Delivery
### Solution Management
```typescript
interface NutrientSolution {
// Primary monitoring
ec: number; // Electrical Conductivity (mS/cm)
ph: number; // Target 5.5-6.5
// Temperature
tempC: number; // Target 18-22°C
// Dissolved oxygen
doPpm: number; // Target >6 ppm
// Macro nutrients (ppm)
nitrogen: number; // 150-250
phosphorus: number; // 30-60
potassium: number; // 150-300
calcium: number; // 150-250
magnesium: number; // 40-80
sulfur: number; // 50-100
}
```
### Dosing Systems
```
┌─────────────────────────────────────────────────────────────┐
│ DOSING SYSTEM │
├─────────────────────────────────────────────────────────────┤
│ │
│ Stock Solutions │
│ ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐ ┌─────┐ │
│ │ A │ │ B │ │CalMag│ │pH Up│ │pH Dn│ │Sili │ │
│ └──┬──┘ └──┬──┘ └──┬──┘ └──┬──┘ └──┬──┘ └──┬──┘ │
│ │ │ │ │ │ │ │
│ ▼ ▼ ▼ ▼ ▼ ▼ │
│ ┌────────────────────────────────────────────────────┐ │
│ │ DOSING PUMPS │ │
│ │ Peristaltic pumps: Precise, low maintenance │ │
│ └────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌────────────────────────────────────────────────────┐ │
│ │ MIXING TANK │ │
│ │ - EC sensor │ │
│ │ - pH sensor │ │
│ │ - Temperature sensor │ │
│ │ - Level sensor │ │
│ └────────────────────────────────────────────────────┘ │
│ │ │
│ ▼ │
│ ┌────────────────────────────────────────────────────┐ │
│ │ GROWING ZONES │ │
│ └────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────┘
```
## Air Circulation
### Airflow Requirements
```
Purposes:
├── Temperature uniformity
├── Humidity distribution
├── CO2 distribution
├── Plant strengthening (thigmomorphogenesis)
└── Disease prevention
Velocity Targets:
├── At canopy: 0.3-0.5 m/s
├── Avoid dead spots
├── Avoid excessive wind stress
```
### Fan Types
| Fan Type | Use | Placement |
|----------|-----|-----------|
| Circulation | Air mixing | Throughout canopy |
| Oscillating | Variable airflow | Above canopy |
| Exhaust | Heat/humidity removal | High in room |
| Intake | Fresh air, CO2 dilution | Low in room |
## Sensor Networks
### Sensor Placement
```
Zone Layout with Sensors:
┌─────────────────────────────────┐
│ [T/H] [T/H] │ [T/H] = Temp/Humidity
│ ●───────────────● │
│ │ [CO2] │ │ [CO2] = CO2 sensor
│ │ ● │ │
│ ┌───┴───────────────┴───┐ │ [PAR] = Light sensor
│ │ [PAR] [PAR] │ │
│ │ ● ● │ Zone │ [EC] = EC sensor
│ │ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓ │ │
│ │ ▓▓ Plants ▓▓▓▓ │ │ [pH] = pH sensor
│ │ ▓▓▓▓▓▓▓▓▓▓▓▓▓▓ │ │
│ │ [EC] [pH] │ │
│ │ ● ● (reservoir)│ │
│ └───────────────────────┘ │
│ │
└─────────────────────────────────┘
Recommended Density:
- T/H: 1 per 20-50 m²
- CO2: 1 per zone (at plant height)
- PAR: 2-4 per zone (canopy level)
- EC/pH: At each reservoir
```
### Calibration Schedule
| Sensor | Frequency | Method |
|--------|-----------|--------|
| Temperature | Monthly | Reference thermometer |
| Humidity | Monthly | Saturated salt test |
| CO2 | Quarterly | Cal gas (fresh air ref) |
| PAR | Annually | Reference meter |
| EC | Weekly | Cal solution |
| pH | Weekly | pH 4.0, 7.0 buffers |
## Alert System
### Alert Thresholds
```typescript
interface AlertThresholds {
temperature: {
warning: { low: targetMin - 2, high: targetMax + 2 };
critical: { low: targetMin - 5, high: targetMax + 5 };
};
humidity: {
warning: { low: 50, high: 80 };
critical: { low: 40, high: 90 };
};
co2: {
warning: { low: 600, high: 1600 };
critical: { high: 2000 }; // Safety
};
ec: {
warning: { low: targetEc - 0.3, high: targetEc + 0.3 };
critical: { low: targetEc - 0.5, high: targetEc + 0.5 };
};
ph: {
warning: { low: 5.0, high: 7.0 };
critical: { low: 4.5, high: 7.5 };
};
}
```
### Alert Escalation
```
Level 1: In-app notification
↓ (no response 5 min)
Level 2: SMS/Push notification
↓ (no response 15 min)
Level 3: Phone call
↓ (no response 30 min)
Level 4: Emergency contact
```
## Best Practices
### Daily Operations
1. **Check sensors** - Verify readings match reality
2. **Inspect plants** - Catch issues before sensors
3. **Review logs** - Look for trends
4. **Maintain equipment** - Filters, pumps, fans
### Preventive Maintenance
| Equipment | Weekly | Monthly | Quarterly |
|-----------|--------|---------|-----------|
| Sensors | Visual check | Calibrate | Replace if needed |
| Filters | Replace/clean | Deep clean | - |
| Pumps | Check flow | Lubricate | Service |
| HVAC | Check operation | Filter | Coil cleaning |
| LEDs | Wipe | Check spectrum | Power audit |

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# Vertical Farm Integration Guide
How to integrate your vertical farm with LocalGreenChain.
## Integration Overview
```
┌─────────────────────────────────────────────────────────────────┐
│ INTEGRATION ARCHITECTURE │
├─────────────────────────────────────────────────────────────────┤
│ │
│ YOUR VERTICAL FARM LOCALGREENCHAIN │
│ ───────────────── ────────────────── │
│ │
│ ┌──────────────┐ ┌──────────────────┐ │
│ │ Control │───Register───→│ /api/vertical- │ │
│ │ System │ │ farm/register │ │
│ └──────────────┘ └──────────────────┘ │
│ │ │ │
│ │ ▼ │
│ ┌──────────────┐ ┌──────────────────┐ │
│ │ Sensors │───Readings───→│ /api/vertical- │ │
│ │ │ │ farm/batch/ │ │
│ │ │ │ {id}/environ │ │
│ └──────────────┘ └──────────────────┘ │
│ │ │ │
│ │ ▼ │
│ ┌──────────────┐ ┌──────────────────┐ │
│ │ Harvest │───Complete───→│ Transport Chain │ │
│ │ Station │ │ (Blockchain) │ │
│ └──────────────┘ └──────────────────┘ │
│ │ │
│ ▼ │
│ ┌──────────────────┐ │
│ │ Consumer QR │ │
│ │ Scan → History │ │
│ └──────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
```
## Step 1: Register Your Farm
### API Call
```typescript
POST /api/vertical-farm/register
{
"name": "Your Farm Name",
"ownerId": "your-user-id",
"location": {
"latitude": 40.7128,
"longitude": -74.0060,
"address": "123 Main Street",
"city": "Brooklyn",
"country": "USA",
"timezone": "America/New_York"
},
"specs": {
"totalAreaSqm": 500,
"growingAreaSqm": 400,
"numberOfLevels": 4,
"ceilingHeightM": 4,
"totalGrowingPositions": 5000,
"powerCapacityKw": 150,
"waterStorageL": 10000,
"certifications": ["gap"],
"buildingType": "warehouse"
},
"automationLevel": "semi_automated"
}
```
### Response
```json
{
"success": true,
"data": {
"id": "farm-abc123",
"name": "Your Farm Name",
"status": "operational",
"apiKey": "vf_key_xxxxx" // For automation
}
}
```
## Step 2: Configure Zones
### Create Zones
```typescript
POST /api/vertical-farm/{farmId}/zones
{
"name": "Zone A - Lettuce",
"level": 1,
"areaSqm": 100,
"growingMethod": "NFT",
"plantPositions": 1200,
"environmentTargets": {
"temperatureC": { "min": 18, "max": 24, "target": 21 },
"humidityPercent": { "min": 55, "max": 75, "target": 65 },
"co2Ppm": { "min": 800, "max": 1400, "target": 1000 },
"lightPpfd": { "min": 200, "max": 400, "target": 300 },
"lightHours": 16,
"nutrientEc": { "min": 1.2, "max": 1.8, "target": 1.5 },
"nutrientPh": { "min": 5.5, "max": 6.5, "target": 6.0 },
"waterTempC": { "min": 18, "max": 22, "target": 20 }
}
}
```
## Step 3: Integrate Sensors
### Environment Reporting
Set up your control system to report environment data:
```typescript
// Every 5 minutes, send readings
async function reportEnvironment(batchId: string): Promise<void> {
const readings = await collectSensorData();
await fetch(`/api/vertical-farm/batch/${batchId}/environment`, {
method: 'PUT',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer ${API_KEY}`
},
body: JSON.stringify({
timestamp: new Date().toISOString(),
temperatureC: readings.temperature,
humidityPercent: readings.humidity,
co2Ppm: readings.co2,
ppfd: readings.light,
dli: readings.dli,
waterTempC: readings.waterTemp,
ec: readings.ec,
ph: readings.ph,
dissolvedOxygenPpm: readings.do,
airflowMs: readings.airflow
})
});
}
// Schedule reporting
setInterval(() => reportEnvironment(currentBatchId), 5 * 60 * 1000);
```
### Handle Alerts
Process alerts returned from the API:
```typescript
const response = await reportEnvironment(batchId);
const { alerts } = await response.json();
for (const alert of alerts) {
if (alert.type.includes('critical')) {
// Trigger immediate action
handleCriticalAlert(alert);
} else {
// Log and notify
logAlert(alert);
notifyOperator(alert);
}
}
```
## Step 4: Manage Crop Batches
### Start a Batch
When planting a new crop:
```typescript
POST /api/vertical-farm/batch/start
{
"farmId": "farm-abc123",
"zoneId": "zone-xyz789",
"recipeId": "recipe-lettuce-butterhead",
"seedBatchId": "seeds-lettuce-2024-001", // Links to transport chain
"plantCount": 200
}
```
This creates:
1. A new batch record
2. Links to the seed source (transport chain)
3. Generates plant IDs for tracking
4. Sets initial stage and targets
### Track Progress
The system automatically tracks:
- Current day and stage
- Health score based on environment
- Expected vs actual timeline
```typescript
GET /api/vertical-farm/batch/{batchId}
// Response
{
"id": "batch-abc123",
"currentDay": 15,
"currentStage": "Vegetative Growth",
"healthScore": 95,
"status": "growing",
"expectedHarvestDate": "2024-07-06",
"alerts": []
}
```
### Complete Harvest
When harvesting:
```typescript
POST /api/vertical-farm/batch/{batchId}/harvest
{
"actualYieldKg": 38.5,
"qualityGrade": "A",
"notes": "Excellent crop"
}
```
This automatically:
1. Records harvest in transport chain
2. Updates batch status
3. Frees zone for next batch
4. Links to distribution
## Step 5: Connect to Demand
### Check Demand Signals
```typescript
GET /api/demand/signal?lat=40.7128&lon=-74.0060&radius=25&season=summer
// Response shows gaps you can fill
{
"demandItems": [
{
"produceType": "lettuce",
"gapKg": 120,
"urgency": "this_week"
}
]
}
```
### Commit Supply
```typescript
POST /api/demand/supply
{
"produceType": "lettuce",
"variety": "butterhead",
"committedQuantityKg": 50,
"availableFrom": "2024-07-06",
"pricePerKg": 5.00,
"certifications": ["local_food_safety"],
"deliveryRadiusKm": 25
}
```
## Integration Patterns
### Pattern 1: Periodic Reporting
Simple integration for basic operations:
```
Every 5 min: Report environment
Every 1 hour: Check for alerts
Daily: Update batch progress
On harvest: Report completion
```
### Pattern 2: Event-Driven
Real-time integration for advanced operations:
```
On sensor change: Report if significant
On alert trigger: Immediate notification
On stage change: Update setpoints
On harvest complete: Full chain update
```
### Pattern 3: Full Automation
Complete integration with automated response:
```
LocalGreenChain ←→ Control System ←→ Equipment
Demand signal → Start batch automatically
Recipe stage → Update setpoints automatically
Alert → Automated response
Harvest ready → Schedule harvest automation
```
## Webhook Integration
### Register Webhooks
Receive real-time events:
```typescript
POST /api/webhooks
{
"url": "https://your-farm.com/webhook",
"events": [
"batch.stage_changed",
"batch.alert_triggered",
"demand.signal_generated"
],
"secret": "your-webhook-secret"
}
```
### Handle Webhooks
```typescript
app.post('/webhook', (req, res) => {
// Verify signature
const signature = req.headers['x-lgc-signature'];
if (!verifySignature(req.body, signature)) {
return res.status(401).send('Invalid signature');
}
const { event, data } = req.body;
switch (event) {
case 'batch.stage_changed':
updateControllerSetpoints(data.zoneId, data.newStage);
break;
case 'batch.alert_triggered':
handleAlert(data.alert);
break;
case 'demand.signal_generated':
evaluateOpportunity(data.signal);
break;
}
res.status(200).send('OK');
});
```
## Data Flow Example
### Complete Cycle
```
1. SEED ACQUISITION
- Source seeds → Record transport event
- seedBatchId: "seeds-001"
2. START BATCH
- Create batch with seedBatchId
- System links to seed origin
3. GROWING
- Report environment every 5 min
- System tracks against recipe
- Alerts if out of range
4. STAGE TRANSITIONS
- System detects day changes
- Updates stage, setpoints
- Webhook notifies control system
5. HARVEST
- Complete harvest API call
- Creates transport event
- Links to seed origin (full chain)
6. DISTRIBUTION
- Record distribution transport
- Generate QR code
- Consumer can scan for full history
```
## Testing Integration
### Test Checklist
1. [ ] Farm registration successful
2. [ ] Zone creation successful
3. [ ] Environment reporting working
4. [ ] Alerts generated correctly
5. [ ] Batch creation working
6. [ ] Harvest recording working
7. [ ] Transport chain links correct
8. [ ] QR code shows full history
9. [ ] Webhooks received
10. [ ] Analytics accurate
### Test Environment
```bash
# Use development API
API_BASE=http://localhost:3001/api
# Test registration
curl -X POST $API_BASE/vertical-farm/register \
-H "Content-Type: application/json" \
-d '{"name": "Test Farm", ...}'
```
## Troubleshooting
### Common Issues
| Issue | Cause | Solution |
|-------|-------|----------|
| 401 Unauthorized | Invalid API key | Check API key |
| Missing alerts | Readings within range | Check thresholds |
| Wrong stage | Day calculation | Check planting date |
| No transport link | Missing seedBatchId | Include in batch start |
### Debug Mode
```typescript
// Enable detailed logging
const response = await fetch(url, {
headers: {
'X-Debug': 'true'
}
});
// Response includes debug info
const { data, _debug } = await response.json();
console.log(_debug);
```
## Best Practices
1. **Consistent reporting** - Don't skip readings
2. **Accurate timestamps** - Use server time or sync
3. **Complete data** - Include all sensor values
4. **Handle errors** - Retry on failure
5. **Monitor health** - Track batch health scores
6. **Link everything** - Use seedBatchId to connect chains