Initial commit

app/serializers/active_storage/serializable_attachment.rb

@@ -0,0 +1,19 @@
+class ActiveStorage::SerializableAttachment < JSONAPI::Serializable::Resource
+  type 'active_storage_attachment'
+  
+  attributes :content_type
+  attribute :filename do
+    @object.filename.to_s
+  end
+
+  attribute :url do
+    Rails.application.routes.url_helpers.rails_blob_url(@object, host: AppHost.new.domain_with_port)
+  end
+
+  attribute :thumbnail_url do
+    if @object.variable?
+      Rails.application.routes.url_helpers.rails_representation_url(@object.variant(resize: "150x150"), host: AppHost.new.domain_with_port)
+    end
+  end
+end
+