server.js

require('dotenv').config();
const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const fileUpload = require('express-fileupload');
const cookieParser = require('cookie-parser');
const path = require('path');

const app = express();
app.use(express.json());
app.use(cookieParser());
app.use(cors());
app.use(
    fileUpload({
        useTempFiles: true,
    }),
);

// Routes
app.use('/user', require('./routes/userRouter'));
app.use('/api', require('./routes/categoryRouter'));
app.use('/api', require('./routes/upload'));
app.use('/api', require('./routes/productRouter'));
app.use('/api', require('./routes/paymentRouter'));

// Connect to mongodb
const URI = process.env.MONGODB_URL;
mongoose.connect(
    URI,
    {
        useCreateIndex: true,
        useFindAndModify: false,
        useNewUrlParser: true,
        useUnifiedTopology: true,
    },
    (err) => {
        if (err) throw err;
        console.log('Connected to MongoDB');
    },
);

if (process.env.NODE_ENV === 'production') {
    app.use(express.static('client/build'));
    app.get('*', (req, res) => {
        res.sendFile(path.join(__dirname, 'client', 'build', 'index.html'));
    });
}

const PORT = process.env.PORT || 5000;
app.listen(PORT, () => {
    console.log('Server is running on port', PORT);
});