server.ts

import * as HTTP from 'http';
import App from './app';
import DatabaseService from './services/db-service';

const PORT = 66666;

App.set('port', PORT);
console.log('Server listening on port : ' + PORT);

const server = HTTP.createServer(App);
server.listen(PORT);
server.on('error', onError);
server.on('listening', onListening);

const db = new DatabaseService();
db.initializeDB();

/**
 * On the event of an error.
 * @param error 
 */
function onError(error: NodeJS.ErrnoException): void {
	if (error.syscall !== 'listen') {
		throw error;
	}
	const bind = typeof PORT === 'string' ? 'Pipe ' + PORT : 'Port ' + PORT;
	switch (error.code) {
		case 'EACCES':
			console.log(`${bind} requires elevated privileges`);
			process.exit(1);
			break;
		case 'EADDRINUSE':
			console.log(`${bind} is already in use`);
			process.exit(1);
			break;
		default:
			throw error;
	}
}

/**
 * On listening to port.
 */
function onListening(): void {
	const addr = server.address();
	const bind = typeof addr === 'string' ? `pipe ${addr}` : `port ${addr.port}`;
	console.log(`Listening on ${bind}`);
}