Caching in YEI-Rails

[AAkindele]

We'll go over a caching setup in YEI-Rails that has been successful.

• https://github.com/youearnedit/YEI-Rails/blob/develop/app/services/feature_switch_cache.rb
• https://github.com/youearnedit/YEI-Rails/blob/develop/lib/dogstatsd.rb
• https://github.com/youearnedit/YEI-Rails/blob/a21bcdf7c5c9765362f805c56deb1268b8f83620/app/controllers/api/v3/posts_controller.rb#L239-L242
• https://github.com/youearnedit/YEI-Rails/blob/a21bcdf7c5c9765362f805c56deb1268b8f83620/app/controllers/api/v3/special_events_controller.rb#L34-L39
• https://github.com/youearnedit/YEI-Rails/blob/develop/config/initializers/cache_notification_subscriptions.rb
• https://app.datadoghq.com/dashboard/n7x-w2q-rvc/cache-hit-rate?from_ts=1561645460689&to_ts=1561649060689&live=true