Lewis LewisW

From Meteor's documentation:

In Meteor, your server code runs in a single thread per request, not in the asynchronous callback style typical of Node. We find the linear execution model a better fit for the typical server code in a Meteor application.

This guide serves as a mini-tour of tools, trix and patterns that can be used to run async code in Meteor.

Basic async

Sometimes we need to run async code in Meteor.methods. For this we create a Future to block until the async code has finished. This pattern can be seen all over Meteor's own codebase:

	<?php
	/*
	Plugin Name: On-Demand image resizer
	Plugin URI: http://www.monkeyman.be
	Description: Create and store images in different sizes on demand
	Version: 1.0
	Author: Jan Fabry

	This plugins monitors 404 requests to the uploads directory and created new images of a requested size. They are saved as new files in the upload directory, not cached somewhere, so future requests are served directly by the server. This allows you to eliminate the creation of intermediate image sizes [see monkeyman-virtual-intermediate-images] or resize images based on the size used in the editor [see monkeyman-resize-image-tags].

	<?php
	/*
	Plugin Name: Resize img tags
	Plugin URI: http://www.monkeyman.be
	Description: Change image src's based on width and height specified in tag
	Version: 0.1
	Author: Jan Fabry

	This plugin rewrites <img> tags so that the src contains width and height information. It is supposed to be used together with a plugin that can generate these resized images on the fly, like monkeyman-on-demand-resizer.

	# Run: curl https://gist.github.com/raw/719970/locale_diff.rb \| ruby - en fi
	require 'rubygems'
	require 'yaml'

	l1 = ARGV[0]
	l2 = ARGV[1]
	first = YAML.load_file(l1 + ".yml")
	second = YAML.load_file(l2 + ".yml")

	def diff(root, compared, structure = [])

	<?xml version="1.0" encoding="UTF-8" ?>
	<project name="[PROJECT_NAME]" default="build" basedir=".">
	<property environment="env"/>
	<loadfile property="version" srcfile="${basedir}/VERSION"/>
	<condition property="bat" value=".bat" else="">
	<os family="windows" />
	</condition>

	<target name="test">
	<delete dir="${basedir}/build"/>

	<?php
	# ------------------------------
	# START CONFIGURATION SECTION
	#

	$launch_url = "https://lti.tools/test/tp.php";
	$key = "12345";
	$secret = "secret";

	$launch_data = array(

	#require 'active_support/core_ext'

	class YamlCompare
	def self.compare_keys first_file_info, second_file_info, results_location
	first_file = Hash.new
	second_file = Hash.new
	deltas_file = Hash.new
	File.open( first_file_info[:file_location] ) { \|yf\| first_file = YAML.load( yf ) }
	File.open( second_file_info[:file_location] ) { \|yf\| second_file = YAML.load( yf ) }
	first_file[first_file_info[:root]].each_pair do \|k,v\|

	<?php

	use Doctrine\ORM\Query\SqlWalker;

	/**
	* Quick hack to allow adding a USE INDEX on the query
	*/
	class UseIndexWalker extends SqlWalker
	{
	const HINT_USE_INDEX = 'UseIndexWalker.UseIndex';

	version=1.7.0.2

	wget http://www.magentocommerce.com/downloads/assets/$version/magento-$version.tar.gz
	tar -zxvf magento-$version.tar.gz
	mv magento/* magento/.htaccess .
	chmod -R o+w media var
	chmod o+w app/etc

	rm -rf magento/ magento-$version.tar.gz
	rm -rf index.php.sample LICENSE.txt LICENSE.html LICENSE_AFL.txt php.ini.sample RELEASE_NOTES.txt

	find . -type f -exec chmod 644 {} \;
	find . -type d -exec chmod 755 {} \;
	chmod 550 pear
	chmod 550 mage
	chmod -R 777 media var