make sign up works

app/controllers/api/v1/registrations_controller.rb

@@ -1,5 +1,6 @@
-class Api::V1::RegistrationsController < ApplicationController
-  skip_before_action :verify_authenticity_token
+class Api::V1::RegistrationsController < Api::V1::ApplicationController
+  skip_before_action  :authenticate_user_from_token
+
   respond_to :json
 
   def create

app/models/user.rb

@@ -21,6 +21,13 @@ class User < ActiveRecord::Base
     User.where(id: user_ids)
   end
 
+  def active_auth_token
+    if auth_tokens.empty?
+      generate_auth_key
+    end
+    auth_tokens.first.value
+  end
+
   private
 
   def set_name
@@ -38,13 +45,6 @@ class User < ActiveRecord::Base
     AuthToken.generate_token_for self
   end
 
-  def active_auth_token
-    if auth_tokens.empty?
-      generate_auth_key
-    end
-    auth_tokens.first.value
-  end
-
 end