clarle/app.js

## app.js
// Module dependencies

var express    = require('express'),
    mysql      = require('mysql');

// Application initialization

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

var app = module.exports = express.createServer();

// Database setup

connection.query('CREATE DATABASE IF NOT EXISTS test', function (err) {
    if (err) throw err;
    connection.query('USE test', function (err) {
        if (err) throw err;
        connection.query('CREATE TABLE IF NOT EXISTS users('
            + 'id INT NOT NULL AUTO_INCREMENT,'
            + 'PRIMARY KEY(id),'
            + 'name VARCHAR(30)'
            +  ')', function (err) {
                if (err) throw err;
            });
    });
});

// Configuration

app.use(express.bodyParser());

// Main route sends our HTML file

app.get('/', function(req, res) {
    res.sendfile(__dirname + '/index.html');
});

// Update MySQL database

app.post('/users', function (req, res) {
    connection.query('INSERT INTO users SET ?', req.body,
        function (err, result) {
            if (err) throw err;
            res.send('User added to database with ID: ' + result.insertId);
        }
    );
});

// Begin listening

app.listen(3000);
console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);

## index.html
<!doctype html>
<html>
  <head>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            $('#user-submit').click(function () {
                var payload = {
                    name: $('#user-name').val()
                };

                $.ajax({
                    url: "/users",
                    type: "POST",
                    contentType: "application/json",
                    processData: false,
                    data: JSON.stringify(payload),
                    complete: function (data) {
                        $('#output').html(data.responseText);
                    }
                });
            });
        });
    </script>
  </head>
  <body>
    <h3>Enter a username to enter into the database:</h3>
    <input id="user-name" type="text" />
    <input id="user-submit" type="submit" />
    <p id="output"></p>
  </body>
</html>

## package.json
{
    "name": "reddit-node-mysql"
  , "description": "A demo of how to use Express and MySQL together"
  , "author": "Clarence Leung <github@clarle>"
  , "version": "0.0.1"
  , "private": true
  , "dependencies": {
      "express": "~2.5",
      "mysql": "~2.0"
  }
}
	// Module dependencies

	var express = require('express'),
	mysql = require('mysql');

	// Application initialization

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

	var app = module.exports = express.createServer();

	// Database setup

	connection.query('CREATE DATABASE IF NOT EXISTS test', function (err) {
	if (err) throw err;
	connection.query('USE test', function (err) {
	if (err) throw err;
	connection.query('CREATE TABLE IF NOT EXISTS users('
	+ 'id INT NOT NULL AUTO_INCREMENT,'
	+ 'PRIMARY KEY(id),'
	+ 'name VARCHAR(30)'
	+ ')', function (err) {
	if (err) throw err;
	});
	});
	});

	// Configuration

	app.use(express.bodyParser());

	// Main route sends our HTML file

	app.get('/', function(req, res) {
	res.sendfile(__dirname + '/index.html');
	});

	// Update MySQL database

	app.post('/users', function (req, res) {
	connection.query('INSERT INTO users SET ?', req.body,
	function (err, result) {
	if (err) throw err;
	res.send('User added to database with ID: ' + result.insertId);
	}
	);
	});

	// Begin listening

	app.listen(3000);
	console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
	<!doctype html>
	<html>
	<head>
	<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
	<script type="text/javascript">
	$(document).ready(function () {
	$('#user-submit').click(function () {
	var payload = {
	name: $('#user-name').val()
	};

	$.ajax({
	url: "/users",
	type: "POST",
	contentType: "application/json",
	processData: false,
	data: JSON.stringify(payload),
	complete: function (data) {
	$('#output').html(data.responseText);
	}
	});
	});
	});
	</script>
	</head>
	<body>
	<h3>Enter a username to enter into the database:</h3>
	<input id="user-name" type="text" />
	<input id="user-submit" type="submit" />
	<p id="output"></p>
	</body>
	</html>
	{
	"name": "reddit-node-mysql"
	, "description": "A demo of how to use Express and MySQL together"
	, "author": "Clarence Leung <github@clarle>"
	, "version": "0.0.1"
	, "private": true
	, "dependencies": {
	"express": "~2.5",
	"mysql": "~2.0"
	}
	}