Webhook Relay / Proxy (Go, Redis, PostgreSQL, Prometheus, Docker) overview

A high-throughput webhook relay service built in Go that receives inbound webhooks from third-party services, validates signatures, persists payloads for auditability, and fans out deliveries to subscriber endpoints with configurable retry policies. Redis serves as the in-flight delivery queue with at-least-once guarantees, while PostgreSQL stores the complete webhook event log, delivery attempts, and subscriber configurations. Chi provides a lightweight HTTP router, and pgx handles efficient PostgreSQL operations. Prometheus tracks delivery success rates, latency percentiles, and queue depth. Docker containers deploy the relay alongside its dependencies. The tradeoff is the operational burden of managing retry storms and backpressure when downstream services are unavailable, but the relay provides a single reliable ingestion point for all third-party integrations.