API for apps to register for push notifications

app/controllers/api/v1/devices_controller.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Api::V1::DevicesController < ApiController
+  before_action -> { doorkeeper_authorize! :read }
+  before_action :require_user!
+
+  respond_to :json
+
+  def register
+    Device.where(account: current_account, registration_id: params[:registration_id]).first_or_create!(account: current_account, registration_id: params[:registration_id])
+    render_empty
+  end
+
+  def unregister
+    Device.where(account: current_account, registration_id: params[:registration_id]).delete_all
+    render_empty
+  end
+end