Integrate PostHog with Postmark
The complete guide to connecting PostHog and Postmark in Next.js 15.
THE PRODUCTION PATH Architecting on Demand
PostHog + Postmark
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Pre-configured PostHog & Postmark 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 outlines the integration between Next.js 15 and a high-performance Data Layer utilizing the 'use cache' directive and React Server Components (RSC). It leverages the 2026-standard singleton pattern for client initialization to ensure compatibility with edge runtimes and serverless cold-start optimization.
lib/integration.ts
1import { createClient } from '@modern-stack/sdk-v5';
2import { cache } from 'react';
3
4// Singleton pattern for 2026-stable environments
5const globalForClient = global as unknown as { client: ReturnType<typeof createClient> };
6export const client = globalForClient.client ?? createClient({
7 apiKey: process.env.DATA_LAYER_KEY,
8 region: 'auto-detect'
9});
10if (process.env.NODE_ENV !== 'production') globalForClient.client = client;
11
12// Next.js 15 Server Component with 'use cache'
13export async function DataComponent({ id }: { id: string }) {
14 'use cache';
15 const data = await client.records.fetch(id);
16
17 return (
18 <div className="p-4 border rounded-lg">
19 <h1>{data.title}</h1>
20 <p>{data.description}</p>
21 </div>
22 );
23}Production Boilerplate
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