Viktor Chukhantsev viktorchukhantsev

Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

Get an OAuth Token from GitHub

First you will need to get an OAuth Token from GitHub using your own username and "note"

Logging Rails 4 to Syslog, formatted w/ Logstash

Getting Started

Steps to get Rails 4 saving its output to Syslog via Rsyslog. This assumes you are on CentOS, but should be pretty adaptable to any other distribution. Ruby 2.0+ is also required.

Add the gems lograge and logstash-event to your Gemfile. Feel free to remove from production if you'd like to test it in development as well or something.
Update production.rb with the lograge settings and set the logger to Syslog::Logger.
Add the conf files to /etc/rsyslog.d/. /etc/rsyslog.conf should have $IncludeConfig /etc/rsyslog.d/*.conf enabled, so it will load any additional configs from /etc/rsyslog.conf.

One of the many reasons I love working with Ruby is it has a rich vocabulary that allows you to accomplish your goals with a minimal amount of code. If there isn't a method that does exactly what you want, it's usually possible to build an elegant solution yourself.

Let's take the example of simulating the rolling of a die.

We can represent a die as an array of its faces.

die = [*?⚀..?⚅]
# => ["⚀", "⚁", "⚂", "⚃", "⚄", "⚅"]


	curl -XDELETE 'localhost:9200/test'


	curl -XPUT 'localhost:9200/test/doc/1' -d '
	{
	"sentence" : "Hi!",
	"value" : 1
	}
	'

	# Postgresql fancy datatypes!

	* array
	* hstore (=~ hash)
	* json
	* jsonb


	Philippe Creux - [@pcreux](http://twitter.com/pcreux)

	class API::V1::BaseController < ApplicationController

	skip_before_filter :verify_authenticity_token

	before_filter :cors_preflight_check
	after_filter :cors_set_access_control_headers

	def cors_set_access_control_headers
	headers['Access-Control-Allow-Origin'] = '*'
	headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'

	#!/bin/bash

	### USAGE
	###
	### ./ElasticSearch.sh 1.7 will install Elasticsearch 1.7
	### ./ElasticSearch.sh will fail because no version was specified (exit code 1)
	###
	### CLI options Contributed by @janpieper
	### Check http://www.elasticsearch.org/download/ for latest version of ElasticSearch

	HTTP status code symbols for Rails

	Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

	Status Code Symbol
	1xx Informational
	100 :continue
	101 :switching_protocols
	102 :processing

	# Gemfile

	gem 'kramdown'

	{
	"directory": "vendor/bower_components"
	}