(From the README:)
script/plugin install git://github.com/brynary/rack-bug.git # config/environments/development.rb config.middleware.use "Rack::Bug" # add bookmarklet to browser open http://RAILS_APP/__rack_bug__/bookmarklet.html
# If using the gem instead of a plugin (gem install rack-bug) # config/environments/development.rb config.gem 'rack-bug', :lib => 'rack/bug'
Notes:To use rack-bug with hoptoad, you need to stub hoptoad from trying to serialize the environment variables that rack-bug uses like so:
HoptoadNotifier.configure do |config| config.environment_filters << 'rack-bug.*' end
Django debug toolbar Rails footnotes Rack's ShowException middleware Oink Rack::Cache
A nice introductory screencast by brynary:
Rack::Bug debugging toolbar in four minutes
If you’re having trouble with Rack::Bug enabling on a remote server or in production, or with getting SQL queries to work, you should read Security.