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

when you try a responses in json is beacuse you only need some properties i used this

@my_model=Model.select(:attributeN, :attributeN......, attributeN)
respond_to do |format|
  format.json {
    render json: @my_model
  }
end