@molecule/api-webhook-capture

Auto-generated, AI-first package reference for the molecule.dev ecosystem. It is written to be read by coding agents as much as by people, and is generated from this package's source — edit src/index.ts JSDoc, not this file.

Webhook capture provider for molecule.dev.

Records every dispatch() call as an activity event. Intercept-only by default; delegates + tees when wrapping a real provider.

Quick Start

import { setProvider } from '@molecule/api-webhook'
import { provider } from '@molecule/api-webhook-capture'

setProvider(provider)

Type

provider

Installation

npm install @molecule/api-webhook-capture @molecule/api-activity @molecule/api-webhook

API

Functions

createWebhookCaptureProvider(realProvider)

Creates a webhook capture provider.

When realProvider is provided, each event is dispatched through it and the captured event records the real outcome (delegate + tee). When omitted (the dev default), dispatches are intercepted and a synthetic single-element WebhookDeliveryResult[] is returned. Registration / log / retry methods delegate to the real provider when present and otherwise return empty intercept-only results.

function createWebhookCaptureProvider(realProvider?: WebhookProvider): WebhookProvider

• realProvider — Optional real provider to delegate to and tee.

Returns: A {@link WebhookProvider} that records activity for every dispatch.

Constants

provider

Default webhook capture provider (intercept-only).

const provider: WebhookProvider

Core Interface

Implements @molecule/api-webhook interface.

Bond Wiring

Setup function to register this provider with the core interface:

import { setProvider } from '@molecule/api-webhook'
import { provider } from '@molecule/api-webhook-capture'

export function setupWebhookCapture(): void {
  setProvider(provider)
}

Injection Notes

Requirements

Peer dependencies:

• @molecule/api-activity ^1.0.1
• @molecule/api-webhook ^1.0.1

Runtime Dependencies

• @molecule/api-activity

• @molecule/api-webhook

• Two modes, and the choice decides whether the webhook is DELIVERED. INTERCEPT-ONLY (provider, or createWebhookCaptureProvider() with no argument) records the dispatch and returns a synthetic 200 — no HTTP request is made. DELEGATE + TEE (createWebhookCaptureProvider(real)) dispatches through the real provider AND records the real outcome. Anywhere real deliveries must go out (production), wrap the real provider — never bond the intercept-only provider.

• Recording is best-effort: a bonded ActivitySink that throws NEVER changes the outcome of dispatch() — a successful real dispatch still resolves and a failed one still rejects with the REAL provider error.

• Requires an activity sink to be useful: captures go through @molecule/api-activity's record(), which silently no-ops when no sink is bonded — wire setSink() (e.g. the console/database sink) or intercepted dispatches return synthetic success and leave no trace.

• Intercept-only mode returns a synthetic result (status: 200, success: true) with no HTTP delivery; register() returns secret: '' when options.secret is omitted (NO auto-generation, unlike the http/queue bonds), registrations are not remembered (list() → []), and every dispatched event is recorded regardless of registrations.

• To capture AND really deliver, wrap a real provider: setProvider(createWebhookCaptureProvider(createProvider())) with createProvider from @molecule/api-webhook-http.

E2E Tests

Integration checklist — drive the real UI (live preview, no mocks), adapt each item to this app's actual screens/flows, and check every box off one by one. A box you can't check is an integration bug to fix — not a skip:

• Registering a webhook endpoint through the app's UI/API succeeds, and an event the app dispatches actually produces a delivery. The sandbox CAPTURES outbound deliveries instead of POSTing — read them with the read_activity tool (filter type 'webhook'); never mock the dispatch or modify production code to expose the payload.
• The captured delivery carries the signature header (derived from the registration's secret), a stable delivery-id header the receiver can dedup on (at-least-once), and an event payload free of secrets/unrelated PII.
• A registration targeting a private/link-local/metadata destination (localhost, 10.…, 169.254.169.254) is REJECTED before any dispatch.