AJAX respond_to is not wroking

Question

I'm trying to use javascript with AJAX in Rails, but is not working.

The login.hmtl.erb file:

<%= form_for :web_app, :html => { :id => 'login_form' } , :url => {:action => 'authentication'}, :remote => true  do |f| %>

The web_app_controller.rb action:

  def authentication
    respond_to do |format|
      format.js
    end
  end

The authentication.js.erb file

console.log("hi");

I get this error:

ActionController::UnknownFormat

I have done this before and worked fine, but don't know why I can't make it work. I do not know what I'm missing.

Update

log:

Started GET "/login" for 127.0.0.1 at 2017-11-21 03:05:14 -0300 Processing by WebAppController#login as HTML Rendering web_app/login.html.erb within layouts/application Rendered web_app/login.html.erb within layouts/application (15.1ms) Completed 200 OK in 77ms (Views: 73.2ms | ActiveRecord: 0.0ms)

Started POST "/login" for 127.0.0.1 at 2017-11-21 03:05:43 -0300 Processing by WebAppController#authentication as HTML Parameters: {"utf8"=>"✓", "authenticity_token"=>"sFdGP449Z0Av5eMUPFYOAB/zvTAFViOoDcjFIfXWwu8/oj0iCpnN6fznk6f5AhQU7LSub+cvW2MWtMTD7SwgWA==", "web_app"=>{"code"=>"AQBIzFfceuIFFFsepBU2qzZfbY4nefzDLJFHQk8ZQ0rfp8mdBQHW4PLtWA_558Iro6HJiAKmN7_WI4aioLB96g42K-LPEHjbHJXnKUT_-KOxTHPsgfWXjx0m6yvuIF64Fd3KQTIgvX7AU3y4ibgnQVJFme6omcNl6sBCbxerDav6T3t6dEGYin8f8I0ewbAEvcLpu2u08ZtNH6RbPEo93rZVmAoc9Zu4TsDTSQ_R0-CQah72ZBaIr9bU3MesjuiXqRNj8dxWIrUnUlfE0rCo5gBK", "csrf"=>"abcd"}} Completed 406 Not Acceptable in 3ms (ActiveRecord: 0.0ms)

ActionController::UnknownFormat (ActionController::UnknownFormat):

Possible duplicate of [ActionController::UnknownFormat](https://stackoverflow.com/questions/22943892/actioncontrollerunknownformat) — Hardik Upadhyay, Nov 21 '17 at 05:35
@exsnake WebAppController#authentication as HTML This line from the log says that you request is HTML. It should be JS. Could you please inspect your login form to confirm that is remote true assign to form or not. — SSR, Nov 21 '17 at 06:11

score 0 · Answer 1 · answered Nov 21 '17 at 06:20

0

In your web_app_controller.rb

Add this line after controller class declaration.

respond_to :js, only: [:authentication]

Remove respond_to block from authentication method. Then resubmit request. Check browser console to see log.

answered Nov 21 '17 at 06:20

SSR

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That gives me an error. ` undefined method `respond_to' for WebAppController:Class Did you mean? respond_to?` – exsnake Nov 21 '17 at 15:03
@exsnake where did you put this line? – SSR Nov 22 '17 at 13:11

AJAX respond_to is not wroking

1 Answers1