Respond with json format to all formats requests

Question

Im implementing a Rest API on Ruby on Rails. So i want to respond to all requests in json format. I made this:

include ActionController::MimeResponds


before_filter :force_json

def force_json
  response.format = "json"
  #also tried
  # response.content_type = Mime[:json]
end

Those two ways didn't worked. It gives me an html page with errors. Also is there a way to implement this for the whole api and not for each class? Thanks!

checkout the answer specified in http://stackoverflow.com/questions/23946630/rails-4-how-to-render-json-regardless-of-requested-format — Prasad Surase, Jun 09 '16 at 13:19
While you most certainly *can* respond to all requests in json format, what you *should* do is that block any requests that do not request JSON as a format. This answer: http://stackoverflow.com/a/3679735/476712 illustrates how to do that. — lorefnon, Jun 09 '16 at 13:55

score 1 · Answer 1 · answered Jun 09 '16 at 01:31

1

If you use the responders gem, you can define this at the top of your class:

class PostsController < ApplicationController
  respond_to :json
  ...

Then this controller will respond using JSON by default.

answered Jun 09 '16 at 01:31

Ryan Bigg

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Even using this gem and adding that code, if i request Content-Type text/html i get an html site. I want to get an error json – Fausto Sanchez Jun 09 '16 at 02:00

score 1 · Accepted Answer · answered Jun 09 '16 at 13:16

1

If you want it to happen application wide, you can do something like this in the application controller.

class ApplicationController < ActionController::Base
  before_action :force_json

  def force_json
     request.format = :json
  end
end

answered Jun 09 '16 at 13:16

Larson B

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Respond with json format to all formats requests

2 Answers2