TL;DR

Build type-safe APIs in TypeScript with generic fetch wrappers, discriminated union responses, and runtime type guards.

Key concepts

  • type-safe API TypeScript
  • typed fetch wrapper
  • API response types
  • TypeScript API patterns

Next lesson

Config And Tsconfig

Learn tsconfig.json to configure your TypeScript project. Master strict mode, compiler targets, path aliases, and essential flags.

20 min

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