feat: add parapharmacy API with MongoDB and N8N setup

- Create parapharmacy-api microservice with Express + Swagger + MongoDB
- Add product model with full-text search and deduplication
- Add CRUD endpoints and bulk upsert for scrapers
- Update docker-compose.yml with MongoDB, N8N, and parapharmacy-api services
- Add proxy endpoints in FarmaFinder backend for parapharmacy
- Update frontend services to use parapharmacy API
- Add Swagger documentation at /api/docs

apps/parapharmacy-api/src/server.js

@@ -0,0 +1,130 @@
+import express from 'express';
+import cors from 'cors';
+import mongoose from 'mongoose';
+import morgan from 'morgan';
+import rateLimit from 'express-rate-limit';
+import swaggerJsdoc from 'swagger-jsdoc';
+import swaggerUi from 'swagger-ui-express';
+import { config } from './config.js';
+import productsRouter from './routes/products.js';
+
+const app = express();
+
+// Swagger configuration
+const swaggerOptions = {
+  definition: {
+    openapi: '3.0.0',
+    info: {
+      title: 'FarmaFinder Parapharmacy API',
+      version: '1.0.0',
+      description: 'API for parapharmacy products from multiple Spanish pharmacies',
+    },
+    servers: [
+      {
+        url: `http://localhost:${config.port}`,
+        description: 'Development server',
+      },
+    ],
+    components: {
+      schemas: {
+        Product: {
+          type: 'object',
+          properties: {
+            _id: { type: 'string' },
+            name: { type: 'string' },
+            brand: { type: 'string' },
+            category: { type: 'string' },
+            price: { type: 'number' },
+            source: { type: 'string' },
+          },
+        },
+      },
+    },
+  },
+  apis: ['./src/routes/*.js'],
+};
+
+const swaggerSpec = swaggerJsdoc(swaggerOptions);
+
+// Middleware
+app.use(cors(config.cors));
+app.use(express.json({ limit: '10mb' }));
+app.use(morgan('combined'));
+
+// Rate limiting
+const limiter = rateLimit({
+  windowMs: config.rateLimit.windowMs,
+  max: config.rateLimit.max,
+  standardHeaders: true,
+  legacyHeaders: false,
+});
+app.use(limiter);
+
+// Swagger UI
+app.use('/api/docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec, {
+  explorer: true,
+  customCss: '.swagger-ui .topbar { display: none }',
+  customSiteTitle: 'FarmaFinder Parapharmacy API',
+}));
+
+// Routes
+app.use('/api/products', productsRouter);
+
+// Health check
+app.get('/api/health', (req, res) => {
+  res.json({
+    status: 'ok',
+    timestamp: new Date().toISOString(),
+    mongodb: mongoose.connection.readyState === 1 ? 'connected' : 'disconnected',
+  });
+});
+
+// Sources info
+app.get('/api/sources', (req, res) => {
+  res.json(config.sources);
+});
+
+// Error handling middleware
+app.use((err, req, res, next) => {
+  console.error('Unhandled error:', err);
+  res.status(500).json({ error: 'Internal server error' });
+});
+
+// 404 handler
+app.use((req, res) => {
+  res.status(404).json({ error: 'Not found' });
+});
+
+// Connect to MongoDB and start server
+async function start() {
+  try {
+    console.log(`[Parapharmacy API] Connecting to MongoDB: ${config.mongodb.uri}`);
+    await mongoose.connect(config.mongodb.uri);
+    console.log('[Parapharmacy API] Connected to MongoDB');
+
+    app.listen(config.port, () => {
+      console.log(`[Parapharmacy API] Server running on port ${config.port}`);
+      console.log(`[Parapharmacy API] Swagger docs: http://localhost:${config.port}/api/docs`);
+    });
+  } catch (error) {
+    console.error('[Parapharmacy API] Failed to start:', error);
+    process.exit(1);
+  }
+}
+
+// Handle graceful shutdown
+process.on('SIGTERM', async () => {
+  console.log('[Parapharmacy API] SIGTERM received, shutting down...');
+  await mongoose.disconnect();
+  process.exit(0);
+});
+
+process.on('SIGINT', async () => {
+  console.log('[Parapharmacy API] SIGINT received, shutting down...');
+  await mongoose.disconnect();
+  process.exit(0);
+});
+
+start();
+
+export default app;