Refactoring Grape API methods into normal controllers & other things

app/controllers/api/salmon_controller.rb

@@ -0,0 +1,14 @@
+class Api::SalmonController < ApplicationController
+  before_action :set_account
+
+  def update
+    ProcessInteractionService.new.(request.body.read, @account)
+    render nothing: true, status: 201
+  end
+
+  private
+
+  def set_account
+    @account = Account.find(params[:id])
+  end
+end

app/controllers/api/subscriptions_controller.rb

@@ -0,0 +1,28 @@
+class Api::SubscriptionsController < ApplicationController
+  before_action :set_account
+
+  def show
+    if @account.subscription(api_subscription_url(@account.id)).valid?(params['hub.topic'], params['hub.verify_token'])
+      render text: params['hub.challenge'], status: 200
+    else
+      render nothing: true, status: 404
+    end
+  end
+
+  def update
+    body = request.body.read
+
+    if @account.subscription(api_subscription_url(@account.id)).verify(body, env['HTTP_X_HUB_SIGNATURE'])
+      ProcessFeedService.new.(body, @account)
+      render nothing: true, status: 201
+    else
+      render nothing: true, status: 202
+    end
+  end
+
+  private
+
+  def set_account
+    @account = Account.find(params[:id])
+  end
+end