Integrate Magic Link with PostHog
The complete guide to connecting Magic Link and PostHog in Next.js 15.
THE PRODUCTION PATH Architecting on Demand
Magic Link + PostHog
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Pre-configured Magic Link & PostHog SDKs.
Secure Webhook & API Handlers (with error logging).
Responsive UI Components styled with Tailwind (Dark).
Optimized for Next.js 15 & TypeScript.
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Technical Proof & Alternatives
Verified open-source examples and architecture guides for this stack.
AI Architecture Guide
This blueprint establishes a high-performance, typesafe connection between Next.js 15 (App Router) and a distributed backend service using React Server Components (RSC) and Server Actions. It utilizes the 2026 stable SDK patterns which favor 'Server-First' data fetching to minimize client-side JavaScript execution and enhance SEO performance through Partial Prerendering (PPR).
lib/integration.ts
1import { createServerClient } from '@supabase/ssr';
2import { cookies } from 'next/headers';
3import { cache } from 'react';
4
5// 2026 Standard: Encapsulated Server Client with Next.js 15 Cookie Store
6export const getServiceClient = cache(async () => {
7 const cookieStore = await cookies();
8
9 return createServerClient(
10 process.env.NEXT_PUBLIC_SERVICE_URL!,
11 process.env.SERVICE_ROLE_KEY!,
12 {
13 cookies: {
14 getAll: () => cookieStore.getAll(),
15 setAll: (cookiesToSet) => {
16 try {
17 cookiesToSet.forEach(({ name, value, options }) => cookieStore.set(name, value, options));
18 } catch {
19 // Handled by middleware in 2026 SSR patterns
20 }
21 },
22 },
23 }
24 );
25});
26
27// Server Action Example
28export async function syncData(payload: { id: string; val: number }) {
29 const client = await getServiceClient();
30 const { data, error } = await client
31 .from('registry')
32 .upsert(payload)
33 .select()
34 .single();
35
36 if (error) throw new Error(`Sync failed: ${error.message}`);
37 return data;
38}Production Boilerplate
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