tRPC

tRPC enables end-to-end typesafe APIs for TypeScript without requiring schemas or code generation. Type safety flows automatically from server procedure definitions to React hooks and client calls.

Documentation

• Docs: https://trpc.io/llms.txt

Key Capabilities

tRPC ships with built-in support for patterns that commonly require external libraries:

• Subscriptions: Real-time updates via WebSockets or Server-Sent Events — no separate pub/sub package needed (wsLink, httpSubscriptionLink)
• Request batching: Multiple procedure calls in a single HTTP request via httpBatchLink — the recommended default link used in all official quickstart setups (must be explicitly configured in the client's links option)
• Data transformers: Serialize complex types (Date, BigInt, Map) end-to-end via superjson transformer option — no manual serialization layer
• Server-side caller: Call procedures directly in tests or server code without HTTP overhead using createCallerFactory()
• Middleware chaining: Compose reusable auth, logging, and rate-limiting logic with t.middleware() — result passed through typed ctx augmentation

Best Practices