Rails 4 - Respond only to JSON and not HTML

Question

I\'m trying to build an API in rails 4, and am having an issue where rails returns a 500 error instead of a 406 when using respond_to :json and trying to access

Answer 1

I'm a bit late to this but regarding your comment to this answer:

I want all responses to be JSON

The easiest solution would be:

respond_to do |format|
  format.all { render :json => @posts }
end