#184

backend/app/controllers/tags_controller.rb

@@ -39,6 +39,17 @@ class TagsController < ApplicationController
   end
 
   def update
+    return head :unauthorized unless current_user
+    return head :forbidden unless current_user.member?
+
+    tag = Tag.find(params[:id])
+
+    attrs = { name: params[:name].presence,
+              category: params[:category].presence }.compact
+
+    tag.update!(attrs) if attrs.present?
+
+    render json: tag
   end
 
   def destroy