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TypeScript Academy · Lesson

GraphQL Schema to TypeScript Types

Generate types from .graphql files with codegen.

The Problem: Schema and Types Drift

In GraphQL projects, server schema and client TypeScript types easily fall out of sync without automation. Code generation solves this by deriving types directly from the schema.

# Without codegen: manual types that drift from schema
interface User { id: string; name: string; } // may not match schema

GraphQL Code Generator

@graphql-codegen/cli reads your GraphQL schema and generates TypeScript types automatically.

npm install --save-dev @graphql-codegen/cli @graphql-codegen/typescript

All lessons in this course

  1. GraphQL Schema to TypeScript Types
  2. Typed Resolvers with GraphQL Code Generator
  3. Typed GraphQL Client with Apollo and urql
  4. End-to-End Type Safety: Schema First Workflow
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