Platform Infrastructure

Webhooks That Stay Reliable Under Failure

Subscribe to platform events through a delivery model built for timeout realities, replay pressure, and security-sensitive state transitions.

Docs
  • 01Signature verification
  • 02Retry discipline
  • 03Safe replay tooling
Fig 01operating model

Financial events are signed, delivered, retried, replayed, and reviewed with delivery history intact.

Entrypoint

POST /webhook-endpoints

01Subscribe

Register endpoint

Teams choose events, signing secrets, and delivery policy.

02Sign

Seal payload

Every delivery carries signature and timestamp data for verification.

03Deliver

Send event attempt

Timeouts and status codes are captured as delivery state.

04Retry

Resolve failure

Retries and replay tooling prevent blind reprocessing.

05Review

Inspect event trail

Operators see endpoint health, attempt count, payload, and final outcome.

Events emitted

webhook.endpoint.createdevent.delivery.queuedevent.delivery.failedevent.delivery.succeeded

Evidence retained

event_idsignatureattempt_countendpoint_statusreplay_id
Fig 02failure paths

Event delivery has an operating trail.

Signatures, retries, endpoint health, replay tooling, and delivery outcomes are part of the product surface.

01

Consumer timeout

Incident

A customer endpoint fails to respond during a settlement event delivery.

Zentra path

The attempt is recorded, retried under policy, and exposed for replay review.

Evidence

Event ID, endpoint, status code, attempt count, and replay ID are retained.

02

Signature dispute

Incident

A customer reports an event that their consumer cannot verify.

Zentra path

The delivery trail keeps timestamp, signature posture, and payload identity visible.

Evidence

Signing secret version, event ID, timestamp, payload hash, and endpoint are retained.

Fig 03api to product state

The integration creates visible state.

One call to POST /webhook-endpoints produces status, emitted events, and retained evidence a team can inspect without leaving the product surface.

register webhook endpointrequest
await zentra.webhooks.endpoints.create({
  url: "https://example.com/zentra/webhooks",
  events: ["transfer.settled"],
  signing_secret: "whsec_live"
})

product consequence

status
listening
event
webhook.endpoint.created
evidence
event_id
entrypoint
POST /webhook-endpoints
Fig 04capability model
01

Signature verification

Authenticate callbacks before any business logic or state mutation occurs.

02

Retry and dead-letter handling

Recover from downstream failures through explicit retry and fallback lanes.

03

Replay-safe consumers

Prevent duplicate side effects through idempotent event processing.

04

Delivery observability

Track event outcomes and diagnose failures without blind spots.

Visual center

Control plane

Tenant-aware orchestration with explicit states, traces, and policy boundaries.

Fig 05operational proof

Evidence that holds when production gets noisy.

State, actor, tenant, signature, and policy context remain reviewable after the happy path breaks — written to be checked by operators and compliance teams, not admired in a deck.

Docs
01

Webhook services expose signature, retry, replay, and delivery-log primitives directly.

02

Consumer architecture is designed for timeout and retry realities in distributed systems.

03

Operational controls support safe replay and post-incident review without hidden state.