Integrate Auth0 with LangChain

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

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Auth0 + LangChain
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Pre-configured Auth0 & LangChain SDKs.

Secure Webhook & API Handlers (with error logging).

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Optimized for Next.js 15 & TypeScript.

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AI Architecture Guide

This blueprint establishes a high-performance, type-safe integration between Next.js 15 (App Router) and Supabase (PostgreSQL/Auth) using the 2026-standard SSR architecture. It focuses on the asynchronous handling of headers/cookies introduced in Next.js 15 and ensures secure, server-side data fetching and session management.

lib/integration.ts

1import { createServerClient } from '@supabase/ssr';
2import { cookies } from 'next/headers';
3
4/**
5 * Technical Blueprint: Next.js 15 + Supabase Client Factory
6 * Version: SDK ^2.6.0 (2026 Stable Standard)
7 */
8export async function createClient() {
9  const cookieStore = await cookies();
10
11  return createServerClient(
12    process.env.NEXT_PUBLIC_SUPABASE_URL!,
13    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
14    {
15      cookies: {
16        getAll() {
17          return cookieStore.getAll();
18        },
19        setAll(cookiesToSet) {
20          try {
21            cookiesToSet.forEach(({ name, value, options }) =>
22              cookieStore.set(name, value, options)
23            );
24          } catch (error) {
25            // Handled: setAll can be safely ignored when called from Server Components
26          }
27        },
28      },
29    }
30  );
31}
32
33// Usage in a Server Action or Server Component:
34// const supabase = await createClient();
35// const { data: { user } } = await supabase.auth.getUser();

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