How (Not) To Build Your Own GraphQL Server

1

graphql.js

Defining your schema and the resolvers simultaneously led to some issues for developers, as it was hard to decouple the schema from the (business) logic in your resolvers. The SDL-first approach introduced this separation of concerns by defining the complete schema before connecting them to the resolvers and making this schema executable. A version of the SDL-first approach was introduced together with GraphQL specification, and the core implementation for in JavaScript called graphql-js.

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2

ExpressJS

With an SDL-first approach, you directly write your schema and write resolvers afterward. A schema created SDL-first with graphql-js, could be made into a server by using Express or any other Node library to set up an HTTP server. An example implementation of an SDL-first approach in JavaScript will require you to define a schema using SDL:.

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