how to connect to mysql database using node.js apis code example

Example 1: use nodejs mysql

var mysql      = require('mysql');var connection = mysql.createConnection({  host     : 'localhost',  user     : 'me',  password : 'secret',  database : 'my_db'}); connection.connect(); connection.query('SELECT 1 + 1 AS solution', function (error, results, fields) {  if (error) throw error;  console.log('The solution is: ', results[0].solution);}); connection.end();

Example 2: rest api node js with mysql

const express = require('express'),
  app = express(),
  bodyParser = require('body-parser');
  port = process.env.PORT || 3000;


const mysql = require('mysql');
// connection configurations
const mc = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: '',
    database: 'mydb'
});
 
// connect to database
mc.connect();

app.listen(port);

console.log('API server started on: ' + port);

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

var routes = require('./app/routes/approutes'); //importing route
routes(app); //register the route