Integrate Auth0 with tRPC

The complete guide to connecting Auth0 and tRPC in Next.js 15.

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Auth0 + tRPC
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AI Architecture Guide

This blueprint outlines a secure, type-safe integration for Next.js 15 (App Router) bridging Client Components and Server-side logic using React 19 'useActionState', Server Actions, and Zod-based validation for 2026-standard enterprise applications.

lib/integration.ts

1import { useActionState } from 'react';
2import { z } from 'zod';
3
4// 1. Define Schema for the Connection
5const ConnectionSchema = z.object({
6  id: z.string().uuid(),
7  payload: z.string().min(1)
8});
9
10// 2. Server Action (Server-side logic)
11export async function connectService(prevState: any, formData: FormData) {
12  'use server';
13  const validatedFields = ConnectionSchema.safeParse({
14    id: formData.get('id'),
15    payload: formData.get('payload')
16  });
17
18  if (!validatedFields.success) {
19    return { error: 'Validation Failed', details: validatedFields.error.flatten() };
20  }
21
22  try {
23    // Simulate 2026 SDK call (e.g., unified cloud connector)
24    const response = await fetch('https://api.internal/v2/connect', {
25      method: 'POST',
26      body: JSON.stringify(validatedFields.data)
27    });
28    return { success: true, data: await response.json() };
29  } catch (err) {
30    return { error: 'Connection Timeout' };
31  }
32}
33
34// 3. Client Component
35export function ConnectorView() {
36  const [state, formAction, isPending] = useActionState(connectService, null);
37
38  return (
39    <form action={formAction}>
40      <input name="id" type="hidden" value="550e8400-e29b-41d4-a716-446655440000" />
41      <input name="payload" placeholder="Enter connection data..." className="p-2 border" />
42      <button disabled={isPending} type="submit">
43        {isPending ? 'Connecting...' : 'Initialize Connection'}
44      </button>
45      {state?.error && <p className="text-red-500">{state.error}</p>}
46    </form>
47  );
48}

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