trpc_minimal_server_client_with_zod_validation.ts

1import { initTRPC } from '@trpc/server';
2import { createTRPCClient, httpBatchLink } from '@trpc/client';
3import { z } from 'zod';
4
5/**
6 * 1. Server-side code
7 */
8const t = initTRPC.create();
9
10const appRouter = t.router({
11  getUser: t.procedure
12    .input(z.string())
13    .query((opts) => {
14      return { id: opts.input, name: 'Bilbo' };
15    }),
16  createUser: t.procedure
17    .input(z.object({ name: z.string() }))
18    .mutation((opts) => {
19      return { name: opts.input.name, role: 'admin' };
20    }),
21});
22
23// Export type router type signature
24// NOT the router itself
25export type AppRouter = typeof appRouter;
26
27/**
28 * 2. Client-side code
29 */
30const trpc = createTRPCClient<AppRouter>({
31  links: [
32    httpBatchLink({
33      url: 'http://localhost:3000',
34    }),
35  ],
36});
37
38async function main() {
39  // Query example
40  const user = await trpc.getUser.query('id_123');
41  console.log('User:', user);
42
43  // Mutation example
44  const newUser = await trpc.createUser.mutate({ name: 'Frodo' });
45  console.log('Created User:', newUser);
46}
47
48main().catch(console.error);