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T3 Stack · Pipe

server

tRPC lets a TypeScript frontend call backend procedures with inferred types and autocomplete. You define validated procedures in routers, merge them into an app router, and export its type for the client.

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Syntax

createTRPCRouter({ name: publicProcedure.input(schema).query(({ ctx, input }) => result) })

In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

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  • createTRPCRouter
  • publicProcedure
  • protectedProcedure
  • createTRPCContext
  • createInnerTRPCContext
  • appRouter
  • superjson
  • React Query

Source: tRPC • Create T3 App. Checked 2026-11-03.