Find the latest React.js talks & workshops at https://portal.gitnation.org     🗓 Talk recording from GraphQL Galaxy Conference 2020 Website - https://graphqlgalaxy.com Watch the full version of the all conference talks including QnA sessions and panel discussions with the inventors of GraphQL on GitNation Video platform , follow the link → http://bit.ly/3pQnGay GraphQL is a query language for APIs, but what if your API doesn't support GraphQL? There's a lot of information on how you can use GraphQL to make your APIs more readable or even more content on using GraphQL as a data layer for your existing APIs. This all makes perfect sense, but what if you actually want to know how to transform existing services to GraphQL? In this talk I'll demonstrate how you can use your existing services to create GraphQL schemas using Abstract Syntax Trees and TypeScript. This is not a talk to show how to wrap services with GraphQL, in this talk I'll show data models to use an AST to transform existing services to GraphQL. Also, thinking patterns and best class approaches will be shown.