Posthook + Next.js Starter

Schedule Delayed Tasks in Next.js Without Cron, Queues, or Workflow Engines

Posthook gives your Next.js app durable per-event timers. Schedule a reminder, expiration, or follow-up with one API call — your route handler runs when the time comes.

Webhook handlers

app/api/webhooks/remind/route.ts

One route per hook type. Each handler verifies the HMAC signature, checks task state, and acts or no-ops.

Task state machine

lib/tasks.ts

Schedule-first ordering, conditional updates, and epoch-based snooze.

Scheduling patterns

PATTERNS.md

Seven copy-pasteable patterns including per-event timers, state verification, epoch snooze, conditional updates, and idempotency keys.

Posthook SDK setup

lib/posthook.ts

Lazy singleton for Next.js build safety. Works with any Postgres instance and any deployment platform.

Starter repo

API routes, webhook handlers, and scheduling patterns. Clone this to get started.

Live demo repo

Source for this app. Adds UI, session isolation, and seeded data on top of the starter.

Built with Next.js, Postgres, Drizzle ORM, OpenAI, and Posthook. No cron to maintain. No workflow engine to learn.