A GraphQL Server With Node.js And Express GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more. A GraphQL server with Node.js and Express. By using the Express middleware express-graphql setting up a GraphQL server requiring only few lines of code. If you’d like to to dive deeper into the GraphQL language also check out http://graphql.org/learn.