Ronaldo Sousa ronaldofs

In this gist I would like to describe an idea for GraphQL subscriptions. It was inspired by conversations about subscriptions in the GraphQL slack channel and different GH issues, like #89 and #411.

Conceptual Model

At the moment GraphQL allows 2 types of queries:

query
mutation

Reference implementation also adds the third type: subscription. It does not have any semantics yet, so here I would like to propose one possible semantics interpretation and the reasoning behind it.

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.

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

Raw Attribute Strings

<div my-directive="some string" another-param="another string"></div>

	defmodule Raven.Util.Transaction do
	use GenServer, restart: :temporary

	@moduledoc """
	Claim a given transaction handle

	Blocks if other callers have already claimed the handle. This will return with
	`:ok` if the current process wins the claim, otherwise it will return `:already_taken`

	### Example Usage

	var express = require('express'),
	httpProxy = require('http-proxy'),
	app = express();

	var proxy = new httpProxy.RoutingProxy();

	function apiProxy(host, port) {
	return function(req, res, next) {
	if(req.url.match(new RegExp('^\/api\/'))) {
	proxy.proxyRequest(req, res, {host: host, port: port});

	function UndoItem (perform, data) {
	this.perform = perform;
	this.data = data;
	}

	/**
	* UndoStack:
	* Easy undo-redo in JavaScript.
	**/

	var bogart = require('bogart');
	var Q = require('promised-io/lib/promise');
	var mongoose = require('mongoose');

	var PostSchema = new mongoose.Schema({
	title: String,
	body: String,
	comments: [ CommentSchema ]
	});