Wim Mostmans Sitebase

Problem

While building a JavaScript single page app that acts as a front-end to multiple backend servers, even if they are on the same host as the web app - but on different ports, you come across CORS issues.

Solution

Use a simple node.js + hapi.js server to:

Serve your static single page app
Act as proxy to the backend servers

Read `heroku logs` output w/ `bunyan`

The stuff before the JSON in heroku logs output has to be cut off for bunyan to work.

$ heroku logs | sed -l 's/.*app\[web\..*\]\: //' | bunyan

Flag -l makes the output buffered by line.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	#!/usr/bin/python
	# A quick hack of my button monitor script to monitor headlights and reverse lights to
	# Dim the screen and switch to the reverse camera.
	# I have not tested this...
	# Remember, the switch or opto is switching to ground, so the logic is inverted... 0 = on 1 = off
	# Also, you would run only one of these "Monitor" scripts. you can't be running RearviewMonitor.py AND LightMonitor.py

	import RPi.GPIO as GPIO
	import time
	import subprocess, os


	module classes {

	export interface ClassManager {
	mod(...name: string[]): ClassManager;
	cmod(condition: boolean, ...name: string[]): ClassManager;
	toString(): string;
	before(...other: ToString[]): ClassManager;
	after(...other: ToString[]): ClassManager;
	}

	var uuid = require('node-uuid'),
	https = require('https');

	function iCloud(appleId, password) {

	this.urls = {
	"version" : "https://www.icloud.com/system/version.json",
	"validate": "/setup/ws/1/validate?clientBuildNumber={0}&clientId={1}",
	"login": "/setup/ws/1/login?clientBuildNumber={0}&clientId={1}"
	}

	var Sonos = require('../index').Sonos;
	var Listener = require('../lib/events/listener');

	var x = new Listener(new Sonos(process.env.SONOS_HOST \|\| '192.168.2.11'));
	x.listen('/ZoneGroupTopology/Event', function(err, sid) {
	console.log(sid);
	});

	events {
	worker_connections 1024;
	}

	http {
	default_type text/html;
	access_log /dev/stdout;
	sendfile on;
	keepalive_timeout 65;

	onBuildWrite: function (moduleName, path, contents) {
	return contents.replace(/jsx!/g, '');
	}