How to Define a GraphQL Schema in Go

Go does not have a built-in GraphQL schema definition system; you must use a third-party library like 99designs/gqlgen to define schemas in .graphql files and generate Go code. Install the tool and run the generator to create your server scaffolding:

go install github.com/99designs/gqlgen@latest
gqlgen init

This creates a schema.graphql file where you define your types and a gqlgen.yml configuration file.

Go doesn't speak GraphQL natively, so you use a helper tool to translate your schema definitions into Go code. Think of it like using a translator to turn a blueprint (your schema) into the actual building materials (Go code) needed to construct your API.