server.js

import express from 'express';
import { APP_PORT, DB_URL } from './config';
import errorHandler from './middlewares/errorHandler';
const app = express();
import routes from './routes';
import mongoose from 'mongoose';
import path from 'path';
import cors from 'cors';

// Database connection
mongoose.connect(DB_URL, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    useFindAndModify: false,
});
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', () => {
    console.log('DB connected...');
});

global.appRoot = path.resolve(__dirname);
app.use(cors());
app.use(express.urlencoded({ extended: false }));
app.use(express.json());
app.use('/api', routes);
app.use('/uploads', express.static('uploads'));
app.use('/', (req, res) => {
    res.send(`
  <h1>Welcome to E-commerce Rest APIs</h1>
  You may contact me <a href="https://codersgyan.com/links/">here</a>
  Or You may reach out to me for any question related to this Apis: codersgyan@gmail.com
  `);
});

app.use(errorHandler);
const PORT = process.env.PORT || APP_PORT;
app.listen(PORT, () => console.log(`Listening on port ${PORT}.`));