Unknown format in rails 4

Question

I'm using rails 4. But I am getting unknown format error. Do you guys have any help for me. Here is my controller:

class EntriesController < ApplicationController
  respond_to :json

  def index
    respond_with Entry.all
  end
end

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But its working perfectly on rails 3 only problem in rails 4 — user3366155, May 11 '14 at 08:35

score 33 · Accepted Answer · answered May 16 '14 at 04:47

33

Add this to your routes config

resources :entries, defaults: { format: 'json' }

answered May 16 '14 at 04:47

JNN

1

@user3366155 glad it helped. would you mind choosing my answer :) – JNN May 21 '14 at 07:05
Thanks mate, was looking for this for ages! – DonMB Mar 19 '15 at 08:34

score 9 · Answer 2 · answered May 11 '14 at 08:20

9

def index
  respond_to do |format|

    @entry = Entry.all

    format.html 
    format.json { render json: @entry }

  end
end

hope it will help you

answered May 11 '14 at 08:20

matanco

1

:) while this may not have concerned OP, this was what I was looking for! (I wanted to return the regular html view as default, but respond to `.json` in a different way – Don Cheadle Feb 09 '15 at 15:57
1

This is very helpful! It just works! However I don't understand why does it work? – newguy Apr 28 '16 at 13:53

score -2 · Answer 3 · answered May 11 '14 at 08:15

-2

Add :html to respond_to (respond_to :html, :json) or remove the respond_to call altogether.

answered May 11 '14 at 08:15

Ahmad Sherif

1

in Rails 4.2.2, adding `respond_to` at Controller-level gives an error about how it has been moved to a `gem` – Don Cheadle Feb 09 '15 at 16:00

3 Answers3