Initial commit

app/controllers/api/notes_controller.rb

@@ -0,0 +1,35 @@
+class Api::NotesController < Api::ApiController
+  before_action :set_release
+  deserializable_resource :note, only: [:create]
+
+  def index
+    render jsonapi: @release.notes, class: { Note: SerializableNote }
+  end
+
+  def create
+    note = @release.notes.new(note_create_params)
+    note.user_id = current_user.id
+    note.email = current_user.email
+    note.save!
+    render jsonapi: note, class: { Note: SerializableNote }, status: :created
+  end
+
+  private
+
+  def model_name
+    request.path.match(/(\w+_releases)/).captures.first.singularize
+  end
+
+  def model_constant
+    model_name.camelize.constantize
+  end
+
+  def set_release
+    @release = authorize model_constant.find(params["#{model_name}_id"])
+  end
+
+  def note_create_params
+    parameters = params.require(:note).permit!
+    parameters.slice(:content)
+  end
+end