Add a PublicController as the base for cacheable public resources.

app/controllers/api/v3/public/card_cycles_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardCyclesController < JSONAPI::ResourceController
+      class Api::V3::Public::CardCyclesController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/card_pools_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardPoolsController < JSONAPI::ResourceController
+      class Api::V3::Public::CardPoolsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/card_set_types_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardSetTypesController < JSONAPI::ResourceController
+      class Api::V3::Public::CardSetTypesController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/card_sets_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardSetsController < JSONAPI::ResourceController
+      class Api::V3::Public::CardSetsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/card_subtypes_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardSubtypesController < JSONAPI::ResourceController
+      class Api::V3::Public::CardSubtypesController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/card_types_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardTypesController < JSONAPI::ResourceController
+      class Api::V3::Public::CardTypesController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/cards_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::CardsController < JSONAPI::ResourceController
+      class Api::V3::Public::CardsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/factions_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::FactionsController < JSONAPI::ResourceController
+      class Api::V3::Public::FactionsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/formats_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::FormatsController < JSONAPI::ResourceController
+      class Api::V3::Public::FormatsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/illustrators_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::IllustratorsController < JSONAPI::ResourceController
+      class Api::V3::Public::IllustratorsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/printings_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::PrintingsController < JSONAPI::ResourceController
+      class Api::V3::Public::PrintingsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/public_controller.rb

@@ -0,0 +1,26 @@
+module API
+    module V3
+      module Public
+        # Set default caching behavior for public resources.
+        class Api::V3::Public::PublicController < ApplicationController
+            include JSONAPI::ActsAsResourceController
+            def index_related_resources
+                expires_in 1.hour
+                super
+            end
+            def index
+                expires_in 1.hour
+                super
+            end
+            def show
+                expires_in 1.hour
+                super
+            end
+            def show_relationship
+                expires_in 1.hour
+                super
+            end
+        end
+    end
+end
+end

app/controllers/api/v3/public/restrictions_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::RestrictionsController < JSONAPI::ResourceController
+      class Api::V3::Public::RestrictionsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/rulings_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::RulingsController < JSONAPI::ResourceController
+      class Api::V3::Public::RulingsController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/sides_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::SidesController < JSONAPI::ResourceController
+      class Api::V3::Public::SidesController < Api::V3::Public::PublicController
       end
     end
   end

app/controllers/api/v3/public/snapshots_controller.rb

@@ -1,7 +1,7 @@
 module API
   module V3
     module Public
-      class Api::V3::Public::SnapshotsController < JSONAPI::ResourceController
+      class Api::V3::Public::SnapshotsController < Api::V3::Public::PublicController
       end
     end
   end