Firudo

Provides simple logging into log files (/log/development.log || /log/production.log) and filtering security parameters from logs for Sinatra based applications.

Add this line to your application's Gemfile:

gem 'firudo'

And then execute:

$ bundle

Or install it yourself as:

$ gem install firudo

register Sinatra::Firudo
Sinatra::Firudo.filter_attributes :password, :token, :password_confirmation, ...