Need to return JSON-formatted 404 error in Rails

Question

I am having a normal HTML frontend and a JSON API in my Rails App. Now, if someone calls /api/not_existent_method.json it returns the default HTML 404 page. Is

Answer 1

Try to put at the end of your routes.rb:

match '*foo', :format => true, :constraints => {:format => :json}, :to => lambda {|env| [404, {}, ['{"error": "not_found"}']] }