bryanrite

TLDR

This:

ffmpeg -i in.mov -pix_fmt rgb24 -r 24 -f gif - | gifsicle --optimize=3 --delay=3 > out.gif

Is generally nice with a Quicktime Player screen cap.

OS X Screencast to animated GIF

bryanrite

# Add this to config/environments/development.rb
# Limit your development log file to 5 MB
config.logger = Logger.new(config.paths["log"].first, 1, 5242880) # 5 megabytes

bryanrite

# config/routes.rb
resources :documents do
  scope module: 'documents' do
    resources :versions do
      post :restore, on: :member
    end

    resource :lock
  end
end

bryanrite

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.