[ACCEPTED]-Rails 4 - How to render JSON regardless of requested format?-rabl

Accepted answer

Score: 48

You can add a before_filter in your controller to set 4 the request format to json:

# app/controllers/foos_controller.rb

before_action :set_default_response_format

protected

def set_default_response_format
  request.format = :json
end

This will set all 3 response format to json. If you want to allow 2 other formats, you could check for the presence 1 of format parameter when setting request.format, for e.g:

def set_default_response_format
  request.format = :json unless params[:format]
end

Score: 13

You can use format.any:

def action
  respond_to do |format|
    format.any { render json: your_json, content_type: 'application/json' }
  end
end

Score: 5

It's just:

render formats: :json

Score: 0

I had similar issue but with '.js' extension. To 1 solve I did the following in the view: <%= params.except!(:format) %> <%= will_paginate @posts %>

Score: 0

I tried the above solutions and it didn't 11 solve my use case. In some of the controllers 10 of my Rails 4.2 app, there was no explicit 9 render called. For example, a service object was 8 called and nothing was returned. Since they 7 are json api controllers, rails was complaining 6 with a missing template error. To resolve 5 I added this to our base controller.

  def render(*args)
    options = args.first
    options.present? ? super : super(json: {}, status: :ok)
  end

It's 4 a large app I'm converting to Rails 5, so 3 this is just a safety measure as I removed 2 the RocketPants gem that seemed to do this automatically.

As 1 a note, my controllers inherit from ActionController::Base

Source: stackoverflow.com

[ACCEPTED]-Rails 4 - How to render JSON regardless of requested format?-rabl

ArgumentError (too few arguments): when calling format.json on rails 4.04

Strong parameters JSON API rails

Changing Active Model Serializers Default Adapter

jbuilder with If Condition

How to work with rails form and jsonb postgres

Auto-loading lib files in Rails 4

Paperclip::Errors::MissingRequiredValidatorError with Rails 4

How to render a form partial in Rails 4?

User Authentication with Grape and Devise

Respond with a status unauthorised (401) with Rails 4