One of the easiest ways to connect to MySQL is by using [mysql](<https://github.com/mysqljs/mysql>) module. This module handles the connection between Node.js app and MySQL server. You can install it like any other module:

npm install --save mysql

Now you have to create a mysql connection, which you can later query.

const mysql      = require('mysql');
const connection = mysql.createConnection({
  host     : 'localhost',
  user     : 'me',
  password : 'secret',
  database : 'database_schema'
});

connection.connect();

// Execute some query statements
// I.e. SELECT * FROM FOO

connection.end();

In the next example you will learn how to query the connection object.