Integrate Convex with NextAuth.js

The complete guide to connecting Convex and NextAuth.js in Next.js 15.

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Convex + NextAuth.js
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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 outlines the integration of two services (Provider and Consumer) within a Next.js 15 App Router architecture. It utilizes React Server Components (RSC) for secure, server-side data fetching, leveraging the 2026 Stable SDK patterns which emphasize asynchronous param handling, strict TypeScript inference, and granular caching strategies to minimize latency and maximize security.

lib/integration.ts

1import { connectSDK } from "modern-provider-sdk-2026";
2import { cache } from "react";
3import { z } from "zod";
4
5// 1. Initialize Thread-Safe Singleton Client
6const client = connectSDK({
7  endpoint: process.env.PROVIDER_URL!,
8  authToken: process.env.PROVIDER_SECRET!,
9  version: "2026-stable"
10});
11
12// 2. Type-Safe Data Fetcher with Next.js 15 Memoization
13export const getIntegratedData = cache(async (resourceId: string) => {
14  const result = await client.resources.get({ id: resourceId });
15  
16  const Schema = z.object({
17    id: z.string(),
18    status: z.enum(["active", "pending"]),
19    payload: z.record(z.any())
20  });
21
22  return Schema.parse(result);
23});
24
25// 3. Next.js 15 Dynamic Server Component
26export default async function IntegrationLayout({ 
27  params 
28}: { 
29  params: Promise<{ id: string }> 
30}) {
31  const { id } = await params; // Next.js 15 requirement: params are now Promises
32  const data = await getIntegratedData(id);
33
34  return (
35    <section className="integration-wrapper">
36      <h1>Resource: {data.id}</h1>
37      <output>{JSON.stringify(data.payload)}</output>
38    </section>
39  );
40}

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