MySQL

Plugin

MySQL is a NodeJS plugin. You must download NodeJS recommend version fron official site (https://nodejs.org/en/) and install it with npm install mysql OK. We installed MySQL. In our index.js write this:

var mysql = require('mysql');

So. Functions for working with MySQL:

createConnection

Create information for connection but do not open it.

var mysqlc = mysql.createConnection({
    host:'127.0.0.1',// host of server
    user:'kostya_nad',// MySQL user
    password:'MyStrongPassword',// MySQL password
    database:'gmgta'// MySQL database
});

connect

Open connection to database

mysqlc.connect(function(e) {
if(e) {
	console.log("Error connecting to the database with error "+e);
}
else {
	console.log('Database connected!')
}
});

end

Close connection to database

mysqlc.end();

query

Send a MySQL query to database

mysqlc.query("SELECT * FROM `users` WHERE `nickname`=", [], function(e, r) {
if(e) {
console.log('Error on connection ... ');
throw e;
}
else {
console.log('Password is '+r[0].passcode);
}
});