app.js

const express = require('express');
const logger = require('morgan');
const bodyParser = require('body-parser');
// const http = require('http');
const app = express();

app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(function(req, res, next) {
  res.setHeader("Access-Control-Allow-Origin", "*");
  res.setHeader("Access-Control-Allow-Credentials", "true");
  res.setHeader("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
  res.setHeader(
    "Access-Control-Allow-Headers",
    "Access-Control-Allow-Origin,Access-Control-Allow-Headers, Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers,Authorization"
  );
  next();
});

app.listen(3000, 'localhost', (req, res) => {
  console.log('Server is running...');
})