From 975afb3152b8976c62cda2c447696414eb13a571 Mon Sep 17 00:00:00 2001
From: Matt-Yorkley <9029026+Matt-Yorkley@users.noreply.github.com>
Date: Wed, 22 Apr 2020 12:35:39 +0200
Subject: [PATCH] Enable use of Action Caching in the API :tada:

See: https://guides.rubyonrails.org/api_app.html#adding-other-modules
---
 app/models/concerns/api_action_caching.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 app/models/concerns/api_action_caching.rb

diff --git a/app/models/concerns/api_action_caching.rb b/app/models/concerns/api_action_caching.rb
new file mode 100644
index 0000000000..ef0eba604d
--- /dev/null
+++ b/app/models/concerns/api_action_caching.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# API controllers inherit from ActionController::Metal to keep them slim and fast.
+# This concern adds the minimum requirements needed to use Action Caching in the API.
+
+module ApiActionCaching
+  extend ActiveSupport::Concern
+
+  included do
+    include ActionController::Caching
+    include ActionController::Caching::Actions
+    include AbstractController::Layouts
+
+    # This config is not passed to the controller automatically with ActionController::Metal
+    self.cache_store = Rails.configuration.cache_store
+
+    # ActionController::Caching asks for a controller's layout, but they're not used in the API
+    layout false
+  end
+end