Add sidekiq as a job backend

config/environments/development.rb.sample

@@ -62,9 +62,10 @@ Rails.application.configure do
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
-end
 
-# In this mode, any jobs you queue will be run in the same thread, synchronously
-# (that is, MyJob.enqueue runs the job and won't return until it's completed).
-# This makes your application's behavior easier to test
-Que.mode = :sync
+  # In this mode, any jobs you queue will be run in the same thread, synchronously
+  # (that is, MyJob.enqueue runs the job and won't return until it's completed).
+  # This makes your application's behavior easier to test
+  config.active_job.queue_adapter = :test
+
+end

config/environments/production.rb

@@ -87,8 +87,3 @@ Rails.application.configure do
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
 end
-
-# In off mode, queueing a job will simply insert it into the database -
-# the current process will make no effort to run it.
-# You should use this if you want to use a dedicated process to work tasks
-Que.mode = :off

config/environments/test.rb

@@ -42,5 +42,3 @@ Rails.application.configure do
   # If set to :null_store, Setting.x returns nil after first spec runs (database is emptied)
   config.cache_store = :memory_store
 end
-
-Que.mode = :sync