I&#x27;ve been playing with a scala implementation called sangria (<a href="http:&#x2F;&#x2F;sangria-graphql.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;sangria-graphql.org&#x2F;</a>). The type safety of Scala has really been helpful for refactorings and creating the schema. I can&#x27;t imagine the mess I&#x27;d have been in if I&#x27;d have used JS.