fix: ts error when using the tsr utility on createNextHandler

[bnsngltn]

Hello, thanks for the awesome release that adds support to Next App Router.

Everything works great but what I would like to achieve is to have multiple routers and merge them together as I instantiate the handler. I have noticed that the serverless package does not have any docs yet and that the linked example was very bare.

Basically what I'm trying to achieve is something like this:

The sample contract

import { initContract } from '@ts-rest/core';
import { z } from 'zod';

const c = initContract();

export const contract = c.router({
  hello: {
    greet: {
      method: 'GET',
      path: '/hello/greet',
      description: 'Say hello',
      responses: {
        200: z.object({
          message: z.string(),
        }),
      },
    },
  },
});

Then I wanted to define a separate router under the hello namespace using the tsr utility I have found in the source code. It was exported, but I could not find any usage to it, so I assumed it's a utility function for us the end users. Correct me if I'm wrong

import { tsr } from '@ts-rest/serverless/next';
import { contract } from './contract';

export const helloRouter = tsr.router(testContract.hello, {
  greet: async () => {
    return { status: 200, body: { message: 'Hi' } };
  },
});

I then get a TypeScript Error router when trying to put the helloRouter under my handler on my route handler definition saying that my helloRouter cannot be assigned to the expected router shape of the createNextHandler function.

// app/api/[...ts-rest]/route.ts

import { createNextHandler } from '@ts-rest/serverless/next';

const handler = createNextHandler(contract, {
   hello: helloRouter // ❗TypeScript error here
}, {
    basePath: '/api',
    jsonQuery: true,
    responseValidation: true,
    handlerType: 'app-router',

})

Note: This only occurs when strict is set to true in tsconfig.json

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 31ae32ff92c3fcfeccf9e3f213f92010be965f01

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 12 packages

| Name | Type | | ----------------------------- | ----- | | @ts-rest/serverless | Patch | | @ts-rest/example-contracts | Patch | | @ts-rest/non-strict-mode-test | Patch | | @ts-rest/core | Patch | | @ts-rest/express | Patch | | @ts-rest/fastify | Patch | | @ts-rest/nest | Patch | | @ts-rest/next | Patch | | @ts-rest/open-api | Patch | | @ts-rest/react-query | Patch | | @ts-rest/solid-query | Patch | | @ts-rest/vue-query | Patch |

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Issues
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Measures
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[Gabrola]

Thank you!