Build it yourself, or let us run it.
Rolling your own webhook delivery infrastructure is a reasonable choice — if you have the time. Here is an honest look at what each path involves.
Retry Logic and Dead-Letter Handling
You write the retry loop, choose a backoff strategy, decide what counts as a permanent failure, and build a dead-letter store with replay tooling. Each of these is a small project on its own, and they interact in subtle ways under load.
Spensr Events retries on a fixed schedule (+5s, +30s, +5min, +30min), caps attempts by plan tier (up to 5 on Pro), and moves failed events to a dead-letter store with one-click replay from the console. No code required.
Observability
You instrument your delivery code, pipe logs to a sink, build queries to correlate inbound events with outbound attempts, and maintain that tooling as your schema evolves.
Every inbound event and every delivery attempt is logged with status, response code, and payload. Search and replay are built into the console. No instrumentation work on your side.
Reliability
A destination going offline can back up your retry queue, exhaust workers, or trigger cascading failures if you do not build circuit-breaking logic. Most teams discover this gap the first time a destination has an outage.
Spensr Events automatically disables a destination after 10 consecutive delivery failures, isolating the fault from the rest of your delivery pipeline. The destination can be re-enabled manually once it recovers.
HMAC Signing
You generate a secret per destination, sign each outbound request with HMAC-SHA256, document the verification steps for each endpoint owner, and rotate secrets when they leak.
Per-destination outbound HMAC-SHA256 signing is configured in the console. Inbound signature verification — confirming events from sources like Stripe or GitHub are authentic — is available on the Pro plan.
Time to First Event
Designing the schema, standing up the queue, writing the worker, adding retry logic, and wiring observability typically takes days to weeks before the first production event flows end-to-end.
Create a webhook config, add a destination URL, and point your source at the inbound URL. The anonymous sandbox requires no account. First delivery can happen in under a minute.