gistfile1.rb

class Api::V1::SessionsController < Devise::SessionsController
  prepend_before_filter :require_no_authentication, :only => [:create]
  skip_before_filter :verify_authenticity_token, :if => Proc.new { |c| c.request.format == 'application/json' }
  before_filter :validate_auth_token, :except => :create
  include Devise::Controllers::Helpers
  include ApiHelper
  respond_to :json

  def create
    resource = User.find_for_database_authentication(:email => params[:user][:email])
    return failure unless resource
    
    if resource.valid_password?(params[:user][:password])
      sign_in(:user, resource)
      resource.ensure_authentication_token!
      render :json=> {:success => true, :token => resource.authentication_token}
      return
    end
    failure
  end

Started POST "/users/sign_in.json" for 127.0.0.1 at 2014-01-23 01:19:48 +0100
Processing by Devise::SessionsController#create as JSON
Parameters: {"password"=>"[FILTERED]", "email"=>"[email protected]", "session"=>{"password"=>"[FILTERED]", "format"=>"json", "email"=>"[email protected]"}}
Completed 401 Unauthorized in 6ms
Processing by Devise::SessionsController#new as JSON
Parameters: {"password"=>"[FILTERED]", "email"=>"[email protected]", "session"=>{"password"=>"[FILTERED]", "format"=>"json", "email"=>"[email protected]"}}
Completed 406 Not Acceptable in 165ms

ActionController::UnknownFormat (ActionController::UnknownFormat):
actionpack (4.0.0) lib/action_controller/metal/mime_responds.rb:372:in retrieve_collector_from_mimes' actionpack (4.0.0) lib/action_controller/metal/mime_responds.rb:327:inrespond_with'
devise (3.0.3) app/controllers/devise/sessions_controller.rb:10:in `new'

Salut Joël,

Il me semble déjà que tu as un problème de routes.

Ton POST "/users/sign_in.json" tape sur Devise::SessionsController#create alors qu'il devrait taper sur Api::V1::SessionsController#create me semble-t-il

yo !

je pensais justement à ça ce matin !!

Many Thanks bartocc !

Et excellent année ;) !