rails_error_handling.md

Rails exception handling

• http://railscasts.com/episodes/53-handling-exceptions-revised?view=asciicast
• http://code.tutsplus.com/articles/writing-robust-web-applications-the-lost-art-of-exception-handling--net-36395
• http://blog.siami.fr/diving-in-rails-exceptions-handling
• http://rubyjunky.com/never-check-for-an-error-you-dont-know-how-to-handle.html
• http://www.railsonmaui.com/blog/2013/05/08/strategies-for-rails-logging-and-error-handling/
• http://www.monkeyandcrow.com/blog/reading_rails_handling_exceptions/

Rails internals

• https://github.com/rails/rails/blob/v4.1.2/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb#L19-L22
• https://github.com/rails/rails/blob/v4.1.2/actionpack/lib/action_dispatch/middleware/show_exceptions.rb
• https://github.com/rails/rails/blob/v4.1.2/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb#L9
• https://github.com/rails/rails/blob/v4.1.2/actionpack/lib/action_dispatch/middleware/public_exceptions.rb#L37

API design

• https://stripe.com/docs/api#errors
• https://github.com/interagent/http-api-design#generate-structured-errors
• http://apigee.com/about/blog/technology/restful-api-design-what-about-errors
• http://blog.cloud-elements.com/error-handling-restful-api-design-part-iii

railsguides.md

From Rails Guides:

You shouldn't do rescue_from Exception or rescue_from StandardError unless you have a particular reason as it will cause serious side-effects (e.g. you won't be able to see exception details and tracebacks during development).

Certain exceptions are only rescuable from the ApplicationController class, as they are raised before the controller gets initialized and the action gets executed. See Pratik Naik's article on the subject for more information.