From 775a677465c6ae56fccc2d8647257c3efb92c5eb Mon Sep 17 00:00:00 2001
From: Paul Chavard <github@paul.chavard.net>
Date: Wed, 30 Sep 2020 11:59:49 +0200
Subject: [PATCH] GraphQL handle parse errors

---
 app/controllers/api/v2/graphql_controller.rb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/controllers/api/v2/graphql_controller.rb b/app/controllers/api/v2/graphql_controller.rb
index 2e2f783bd..f25bf041d 100644
--- a/app/controllers/api/v2/graphql_controller.rb
+++ b/app/controllers/api/v2/graphql_controller.rb
@@ -18,6 +18,12 @@ class API::V2::GraphqlController < API::V2::BaseController
 
   private
 
+  def process_action(*args)
+    super
+  rescue ActionDispatch::Http::Parameters::ParseError => exception
+    render status: 400, json: { errors: [{ message: exception.cause.message }] }
+  end
+
   # Handle form data, JSON body, or a blank value
   def ensure_hash(ambiguous_param)
     case ambiguous_param