index.js

const express = require('express')
const mongoose = require('mongoose')
var bodyParser = require('body-parser')
require('dotenv').config()
const app = express()
const port = 5000
const userRoute = require('./routes/user')
const authRoute = require('./routes/auth')
const productRoute = require('./routes/product')
const orderRoute = require('./routes/order')
const cartRoute = require('./routes/cart')

mongoose.connect(process.env.MONGO_URL)
  .then(() => console.log('Connect db successfully!'))
  .catch((e) => console.log(e))

app.use(function(req, res, next) {
  res.setHeader("Access-Control-Allow-Headers", "X-Requested-With,content-type, Accept,Authorization,Origin, token");
  res.setHeader("Access-Control-Allow-Origin", "*");
  res.setHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS, PUT, PATCH, DELETE");
  res.setHeader("Access-Control-Allow-Credentials", true);
  next();
});

app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())

app.use("/api/auth", authRoute)
app.use("/api/users", userRoute)
app.use("/api/products", productRoute)
app.use("/api/orders", orderRoute)
app.use("/api/carts", cartRoute)


app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})