server.js

// Capture the substring 'service/grout_event/event'
const PATH_EVENT = /services(\/[\w+\/]+).js$/;

var fs = require( "fs" );
var GitHubApi = require( "github" );
// Configuration github 
var github = new GitHubApi({
	// required
	version: "3.0.0"
});

// Read configuration file to access at api github
console.log( "Read access configurations..." );
var access_param = JSON.parse( fs.readFileSync( "config/access.json", "utf-8" ) );
console.log( "Done" );

console.log( "GitHub authentication..." );
// Authentication
github.authenticate({
	type: "basic",
	username: access_param.user,
	password: access_param.pass	
}); 
console.log( "Done" );

var recursive = require( "recursive-readdir" );
var express = require( 'express' );
var bodyParser = require( "body-parser" );
// Open two service, app to mangare Teamwork request. Second to user request.
var app = express();

// Create wrapper TeamWork API
var TeamWorkApi = require( "./teamwork.js" );
console.log( "Teamwork authentication..." );
var teamwork = new TeamWorkApi({
	api_key: access_param.api_key,
	teamwork_website: access_param.teamwork_website
});
console.log( "Done" );


app.use( bodyParser.json() ); // for parsing application/json
// for parsing application/x-www-form-urlencoded
app.use( bodyParser.urlencoded( { extended: true } ) ); 

// Use OpenShift configuration
app.set( "port", ( process.env.OPENSHIFT_NODEJS_PORT || 8080 ) );
app.set( "ip_address", ( process.env.OPENSHIFT_NODEJS_IP || '127.0.0.1' ) );

// Read all events managed
recursive( "services", function ( err, files ) {
    console.log( "Read Teamwork events..." );
    if ( err ) {
	console.log( "Errors occured:" );
	console.log( JSON.stringify( err ) );
    } else {
	console.log( "Capture events:" );
	files.forEach( function( currentValue, index, array ) {
	    // Get the path events
	    var path = PATH_EVENT.exec( currentValue )[1];
	    // Require the script that it will run when request page of event
	    var script = "./services" + path + ".js";
	    var event = require( script );
	    console.log( "Attach event " + path );
	    // Route for the webhook teamwork request
	    app.post( path, function( req, res ) {
		// Run script attached at the 'path' event
		event.main( req, teamwork, github );
		console.log( "Acknowledge with status 200" );
		res.status( 200 ).send( "OK" );	
	    });
	});

	console.log( "All events synchronized with success" );
    }
});

app.get( "/", function ( req, res ) {
    res.send( "Nothing to do" );
});

app.listen( app.get( "port" ), app.get( "ip_address" ), function () {
    console.log( "App listening in port " + app.get( "port" ) );
});