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@trpc/server

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@trpc/server

The tRPC server library

  • 11.0.0-alpha-tmp-12-06-react.665
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Version published
Weekly downloads
720K
increased by10.17%
Maintainers
3
Weekly downloads
 
Created

What is @trpc/server?

@trpc/server is a TypeScript-first framework for building end-to-end typesafe APIs. It allows you to create APIs where the client and server share the same type definitions, ensuring type safety across the entire stack.

What are @trpc/server's main functionalities?

Creating a Router

This code demonstrates how to create a basic router with a single procedure using @trpc/server. The `greeting` procedure returns a simple 'Hello, world!' message.

const { initTRPC } = require('@trpc/server');
const t = initTRPC.create();
const appRouter = t.router({
  greeting: t.procedure.query(() => 'Hello, world!'),
});
module.exports = { appRouter };

Creating Procedures

This code shows how to create a procedure that takes input and performs an operation. The `add` procedure takes two numbers as input and returns their sum.

const { initTRPC } = require('@trpc/server');
const t = initTRPC.create();
const appRouter = t.router({
  add: t.procedure.input((z) => z.object({ a: z.number(), b: z.number() })).query(({ input }) => input.a + input.b),
});
module.exports = { appRouter };

Middleware

This code demonstrates how to use middleware in @trpc/server. The `isAuthed` middleware checks if the user is authenticated before allowing access to the `secretData` procedure.

const { initTRPC } = require('@trpc/server');
const t = initTRPC.create();
const isAuthed = t.middleware(({ ctx, next }) => {
  if (!ctx.user) {
    throw new Error('Not authenticated');
  }
  return next();
});
const appRouter = t.router({
  secretData: t.procedure.use(isAuthed).query(() => 'Secret data'),
});
module.exports = { appRouter };

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Package last updated on 06 Dec 2024

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