If your making an API and some methods of your controller doesn’t need to render anything peculiar, you could rely on the head method.
head :ok
For an exhaustive list of the rails mapping you can use the handy cheat gem, created by Josh Susser.
$ gem install cheat $ cheat status_codes status_codes: Use these codes for the #head or #render methods. ex: head :ok render :file => '404.html.erb', :status => :not_found status_codes: Use these codes for the #head or #render methods. ex: head :ok render :file => '404.html.erb', :status => :not_found 1xx Informational 100 => :continue 101 => :switching_protocols 102 => :processing 2xx Success 200 => :ok ...
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