localgreenchain/pages/api/plants/nearby.ts
Claude 1e14a700c7
Implement LocalGreenChain: Plant Cloning Blockchain System
This commit implements a complete blockchain-based plant tracking system
that preserves lineage across clones, seeds, and all plant offspring while
connecting growers through geographic proximity.

Features implemented:
- Custom blockchain with proof-of-work consensus
- Plant registration and cloning with lineage tracking
- Geographic discovery to find nearby plants and growers
- Integration with plants.net API for plant identification
- Comprehensive web UI for plant management
- RESTful API endpoints for all operations
- Network statistics and visualization

Core Components:
- lib/blockchain/: PlantBlock, PlantChain, and blockchain manager
- lib/services/: plants.net API and geolocation services
- pages/api/plants/: REST API endpoints for all operations
- pages/: Frontend UI pages for registration, exploration, and lineage

Technical Details:
- TypeScript for type safety
- Next.js for server-side rendering
- Tailwind CSS for responsive design
- JSON file-based blockchain storage
- Haversine distance calculations for geolocation
- OpenStreetMap integration for geocoding

This system enables large-scale adoption by:
- Making plant lineage tracking accessible to everyone
- Connecting local communities through plant sharing
- Providing immutable proof of plant provenance
- Supporting unlimited generations of plant propagation
- Scaling from individual growers to global networks

Documentation includes comprehensive README with:
- Quick start guide
- API reference
- Architecture details
- Scaling recommendations
- Use cases for various audiences
- Roadmap for future enhancements
2025-11-16 05:11:55 +00:00

68 lines
2 KiB
TypeScript

/**
* API Route: Find nearby plants
* GET /api/plants/nearby?lat=123&lon=456&radius=50
*/
import type { NextApiRequest, NextApiResponse } from 'next';
import { getBlockchain } from '../../../lib/blockchain/manager';
import { getGeolocationService } from '../../../lib/services/geolocation';
export default async function handler(
req: NextApiRequest,
res: NextApiResponse
) {
if (req.method !== 'GET') {
return res.status(405).json({ error: 'Method not allowed' });
}
try {
const { lat, lon, radius, species } = req.query;
if (!lat || !lon) {
return res.status(400).json({
error: 'Missing required parameters: lat, lon',
});
}
const latitude = parseFloat(lat as string);
const longitude = parseFloat(lon as string);
const radiusKm = radius ? parseFloat(radius as string) : 50;
if (isNaN(latitude) || isNaN(longitude) || isNaN(radiusKm)) {
return res.status(400).json({
error: 'Invalid parameters: lat, lon, and radius must be numbers',
});
}
const blockchain = getBlockchain();
let nearbyPlants = blockchain.findNearbyPlants(latitude, longitude, radiusKm);
// Filter by species if provided
if (species && typeof species === 'string') {
nearbyPlants = nearbyPlants.filter(
np => np.plant.scientificName === species || np.plant.commonName === species
);
}
// Get plant clusters
const geoService = getGeolocationService();
const allNearbyPlantData = nearbyPlants.map(np => np.plant);
const clusters = geoService.findPlantClusters(allNearbyPlantData, 10);
res.status(200).json({
success: true,
count: nearbyPlants.length,
plants: nearbyPlants,
clusters,
searchParams: {
latitude,
longitude,
radiusKm,
species: species || null,
},
});
} catch (error: any) {
console.error('Error finding nearby plants:', error);
res.status(500).json({ error: error.message || 'Internal server error' });
}
}