app.js

const express = require('express');
const app = express();
const morgan = require('morgan');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');

const productRoutes = require('./api/routes/products');
const orderRoutes = require('./api/routes/orders');

const pw = encodeURIComponent(process.env.MONGO_ATLAS_PW);

const dbURI = `mongodb+srv://samuella_db_user:${pw}@shop-api.liydcbx.mongodb.net/?appName=shop-api`;

mongoose.connect(dbURI)
    .then(() => {
        console.log('Connected to MongoDB Atlas');
    })
    .catch((error) => {
        console.error('MongoDB Connection Error:', error.message);
    });

app.use(morgan('dev'));
app.use(bodyParser.urlencoded({extended: false}));
app.use(bodyParser.json());

app.use((req, res, next) => {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, Authorization');
    if (req.method === 'OPTIONS') {
        res.header('Access-Control-Allow-Methods','PUT, POST, PATCH, DELETE, GET');
        return res.status(200).json({});
    }
    next();
});

app.use('/products', productRoutes);
app.use('/orders', orderRoutes);

app.use((req, res, next) => {
    const error = new Error('Not found');
    error.status = 404;
    next(error);
});

app.use((error, req, res, next) => {
    res.status(error.status || 500);
    res.json({
        error: {
            message: error.message
        }
    });
});

module.exports = app;