GraphQL can be challenging, and not only for beginners. The reason for this is often that it’s so tempting to do the wrong thing. In this session, I will walk you through the various challenges of building production-ready applications with GraphQL. We will discuss the differences between a public GraphQL server and a private GraphQL server. I will show the most common mistakes people encounter with GraphQL and how to tackle them. In this talk, we will look at persisted operations, rate-limiting, introspection security, the right defaults for paging, errors, and many more aspects. This talk is suitable for you whether you are a GraphQL server or client implementor or just a user of GraphQL. After this session, you should have a solid understanding of how to put GraphQL into production in a secure way.