Distributed WebhookReliability Infrastructure
Zyvan provides durable event ingestion, retry orchestration, dead-letter recovery, and observability for modern backend systems.
Delivery
At-least-once
Queue
BullMQ
Storage
PostgreSQL
// architecture
Event Delivery Pipeline
Events move through a durable asynchronous pipeline designed for reliability, recoverability, and operational visibility.
Client API
PostgreSQL
Redis
BullMQ Workers
Outgoing Proxy
Webhook Endpoint
Idempotency
Duplicate requests are prevented before queue insertion.
Retry Engine
Exponential backoff with jitter for transient delivery failures.
Dead Letter Recovery
Failed events are isolated with replay support and attempt history.
HMAC Signing
Outbound payload verification using HMAC-SHA256 signatures.
// core features
Infrastructure Capabilities
Designed around operational reliability and asynchronous event processing.
Durable Event Storage
Events are persisted before delivery attempts, ensuring crash-safe and replay-safe processing.
Retry Orchestration
Exponential backoff with jitter for resilient webhook delivery during downstream outages.
Dead Letter Queue
Failed deliveries are isolated with complete attempt history and replay support.
Event Observability
Structured logs, delivery traces, latency metrics, and delivery attempt visibility.
Currently under active development
Core systems including durable ingestion, retry orchestration, queue workers, and dead-letter recovery are operational. Additional observability tooling and dashboard capabilities are in progress.