Install MySQL

• Reference: https://expressjs.com/en/guide/database-integration.html

    npm i mysql

Create db-example.js

    var mysql = require('mysql')
    var connection = mysql.createConnection({
        host: 'localhost',
        user: 'root',
        password: 'root',
        database: 'project_db'
    })

    connection.connect()

    connection.query('SELECT 1 + 1 AS solution', function (err, rows, fields) {
    if (err) throw err

    console.log('The solution is: ', rows[0].solution)
    })

    connection.end()

Test

    node db-example.js