Add sidekiq

config/application.rb

@@ -11,6 +11,8 @@ module LectureAttendanceManager
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 7.0
 
+    config.active_job.queue_adapter = :sidekiq
+
     # Configuration for the application, engines, and railties goes here.
     #
     # These settings can be overridden in specific environments using the files

config/initializers/sidekiq.rb

@@ -0,0 +1,7 @@
+Sidekiq.configure_server do |config|
+  config.redis = { url: ENV['REDIS_URL'] }
+end
+
+Sidekiq.configure_client do |config|
+  config.redis = { url: ENV['REDIS_URL'] }
+end

config/sidekiq.yml

@@ -0,0 +1,13 @@
+---
+:concurrency: 5
+staging:
+  :concurrency: 10
+production:
+  :concurrency: 20
+:queues:
+  - default
+  - mailers
+
+# These are the cron jobs
+:scheduler:
+  :schedule: