@anyhook/core

The runtime-agnostic heart of anyhook: the outbound webhook delivery engine. Defines the ports that adapters implement and owns all webhook-specific logic — fan-out, Standard Webhooks signing hooks, the retry/backoff + circuit-breaker + DLQ state machine, the delivery log, and the portal HTTP router.

Zero runtime-SDK dependencies. Core defines interfaces; @anyhook/cloudflare / @anyhook/aws implement them. This is what makes the engine portable.

Install

npm i @anyhook/core

Overview

• Ports (Transport, StateStore, Scheduler, HttpClient, WebhookSigner, UrlPolicy, Clock, Rng) — injected by an adapter.
• WebhookEngine — send() (async acceptance, never blocks on delivery) + processMessage() (deliver → classify → retry/DLQ/circuit).
• Policy — backoff schedule with full jitter, outcome classification, circuit-breaker state machine.
• Portal — endpoint CRUD + delivery-log/replay handlers and a framework-agnostic createPortalRouter.
• Security — SSRF-safe defaultUrlPolicy (blocks private/loopback/link-local + obfuscated-IP targets).

import { WebhookEngine, createPortalRouter } from '@anyhook/core';

const engine = new WebhookEngine({ transport, state, scheduler, http, signer });
const receipt = await engine.send({ type: 'payment.succeeded', tenant: 'acme', payload });

Wire it to a runtime with @anyhook/cloudflare or @anyhook/aws. MIT.