adamlwatson

0. gem install goliath (should be v0.9.4 as of writing this)
1. gem install mongoid (should be v2.3.3 as of writing this)
2. create and save test.rb file (see below)
3. % ruby test.rb -sv
4. % ab -n500 -c10 http://localhost:9000/status
5. note the req/s results (somewhere around 80-90 req/s on my machine)
6. edit the test.rb file, remove the 'require mongoid' line
7. repeat steps 3 and 4.
8. note the req/s results (somewhere aaround 550 req/s on my machine)

adamlwatson

class RackRoutes < Goliath::API

  get '/item/:value/description' do
    if params[:value].match /^[a-zA-Z][\w\-]+$/
      ...do awesome stuff with a parameter that is alpha-based...
    elsif params[:value].match /\d+/
      ...do awesome stuff with a parameter that is numeric-based...
    else
      run Proc.new { |env| [404, {}, "" ] }
    end

adamlwatson

config['mongo'] = EM::Synchrony::ConnectionPool.new(size:10) do
  begin
    conn = EM::Mongo::Connection.new('localhost', 27017, 1, {:reconnect_in => 1})
    conn.db('mongo_db_name')
  rescue Exception=>err
    abort "An error occurred while creating the mongodb connection pool: #{err}"
  end
end

adamlwatson

require 'em-synchrony/em-mongo'
require 'mongoid'

mongoid_conn = Mongo::Connection.new 'localhost', 27017, :pool_size => 10
Mongoid.configure do |config|
  begin
    config.master = mongoid_conn.db('dbname')
  rescue Exception=>err
    abort "An error occurred while creating the mongoid connection pool: #{err}"
  end

adamlwatson

require 'amqp'
require 'em-http-request'

EM.run do
  connection = AMQP.connect(:host => '127.0.0.1')
  channel  = AMQP::Channel.new(connection)
  queue    = channel.queue("em.load.test", :auto_delete => true)
  exchange = channel.default_exchange

  def handle_message(header, payload, *args)

adamlwatson

def linearRampToZeroOverTime( value, seconds )
  value = value.to_f
  update_ticks = 60
  step_delta = value / seconds.to_f
  tick_delta = step_delta / update_ticks.to_f
  ( 1..seconds ).each do | sec |
    ( 1..update_ticks ).each do | tick |
      last_value = value
      value = value - tick_delta
      percentage_of_change = value / last_value

adamlwatson

import pretend
from zeep import Client
from zeep.transports import Transport
client = Client('http://api.affiliatewindow.com/v6/AffiliateService?wsdl')
response = pretend.stub(
  status_code=200,
  headers=[],
  content="""
  <?xml version="1.0" encoding="UTF-8"?>
  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://api.affiliatewindow.com/"><SOAP-ENV:Body><ns1:getTransactionListResponse><ns1:getTransactionListReturn><ns1:Transaction><ns1:iId>00000000</ns1:iId><ns1:sStatus>confirmed</ns1:sStatus><ns1:sType>normal</ns1:sType><ns1:sIp>x.x.x.x</ns1:sIp><ns1:bPaid>false</ns1:bPaid><ns1:iPaymentId>0</ns1:iPaymentId><ns1:iMerchantId>1111</ns1:iMerchantId><ns1:mSaleAmount><ns1:dAmount>0.00</ns1:dAmount><ns1:sCurrency>GBP</ns1:sCurrency></ns1:mSaleAmount><ns1:mCommissionAmount><ns1:dAmount>0.00</ns1:dAmount><ns1:sCurrency>GBP</ns1:sCurrency></ns1:mCommissionAmount><ns1:dClickDate>2017-01-01T00:00:00+00:00</ns1:dClickDate><ns1:dTransactionDate>2017-01-01T00:00:00+00:00</ns1

adamlwatson

# this scrubs emoji sequences from a string - i think it covers all of them

def strip_emoji ( str )
    str = str.force_encoding('utf-8').encode
    clean_text = ""

    # emoticons  1F601 - 1F64F
    regex = /[\u{1f600}-\u{1f64f}]/
    clean_text = str.gsub regex, ''