pmdi/backend/server.js

const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const invoicesRouter = require('./routes/invoices');
const clientsRouter = require('./routes/clients');

const app = express();
const PORT = process.env.PORT || 5000;

// Middleware
app.use(cors());
app.use(express.json());

// MongoDB connection
mongoose.connect('mongodb://mongo:27017/invoice-notification', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => console.log('MongoDB connected'))
  .catch(err => console.error('MongoDB connection error:', err));

// Routes
app.use('/api/invoices', invoicesRouter);
app.use('/api/clients', clientsRouter);

app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});