Actually authenticate now

app/controllers/application_controller.rb

@@ -1,5 +1,13 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
+  skip_before_action :verify_authenticity_token, if: :api_request?
+  before_filter :authenticate_user_from_token!
+  before_filter :authenticate_user!
+  before_filter :set_user!
+
+  def api_request?
+    (user_token.present?) && request.format.json?
+  end
 
   rescue_from CanCan::AccessDenied do |exception|
     respond_to do |format|
@@ -25,4 +33,27 @@ class ApplicationController < ActionController::Base
       exception.message
     end
   end
+
+  def authenticate_user_from_token!
+    user = user_token
+
+    if user
+      # Notice we are passing store false, so the user is not
+      # actually stored in the session and a token is needed
+      # for every request. If you want the token to work as a
+      # sign in token, you can simply remove store: false.
+      sign_in user, store: false
+    end
+  end
+
+  def set_user!
+    @user = current_user
+  end
+
+  def user_token
+    @user_token ||= authenticate_with_http_token do |token, options|
+      User.find_by userkey: token
+    end
+  end
+
 end

app/controllers/users_controller.rb

@@ -21,8 +21,7 @@
 #
 
 class UsersController < ApplicationController
-  load_and_authorize_resource except: :show
+  load_and_authorize_resource
-  before_action :init, only: :show
 
   def show
       respond_to do |format|
@@ -43,6 +42,7 @@ class UsersController < ApplicationController
             redirect_to @user
           end
           format.js { head :ok  }
+          format.json { render json: @user }
         end
       else
         respond_to do |format|
@@ -52,6 +52,7 @@ class UsersController < ApplicationController
             render 'show'
           end
           format.js { head :bad_request }
+          format.json { "Update failed!"}
         end
       end
     end
@@ -84,16 +85,6 @@ class UsersController < ApplicationController
     params.fetch(:user, {}).permit(:avatar, :private, :dagschotel_id, :quickpay_hidden)
   end
 
-  def init
-    @user ||= current_user || user_token || User.new
-  end
-
-  def user_token
-    @user_token ||= authenticate_with_http_token do |token, options|
-      User.find_by userkey: token
-    end
-  end
-
   def reset_key
     @user.generate_key!
     redirect_to @user

python_api_example/dagschotel.py

@@ -0,0 +1,15 @@
+import requests
+
+
+base_url = 'http://localhost:3000'
+user = 'j'
+user_token = 'uiUTrjuD3ZSft6s8JD9S4g=='
+
+headers = {'Authorization': f'Token token={user_token}'}
+dagschotel_id = 1
+
+r = requests.put(f'{base_url}/users/{user}.json', headers=headers, json={'dagschotel_id': 20})
+print(r.text)
+
+r = requests.get(f'{base_url}/users/{user}.json', headers=headers)
+print(r.text)