Blog
Notes from the delivery layer.
Engineering deep dives, product updates and practical guides for teams that ship webhooks.
Engineering
Retries that learn: how Hookline schedules the next attempt
Fixed backoff treats every endpoint the same. Ours watches how each endpoint fails and adapts the schedule per host.
Maya Alvarez
· 7 min read
Engineering
What 2.4 billion deliveries taught us about endpoint health
We looked at a month of attempts across every plan. Most failures come from a tiny set of endpoints, and they announce themselves early.
Maya Alvarez
· 8 min read
Product
Signing webhooks without a two-day rotation project
Rotating a signing secret used to mean coordinating with every customer. Here is how the grace window removes that coordination.
Daniel Okafor
· 5 min read
Product
The Replay API is generally available
Resend one event, one endpoint or an entire hour with a single call, and watch the attempts land live.
Sofia Lindqvist
· 4 min read
Guides
Testing webhooks locally with the Hookline dev server
Stop deploying to find out whether your handler works. The dev server replays real events against localhost.
Daniel Okafor
· 6 min read
Engineering
Ordered delivery without a global lock
Per-endpoint ordering sounds like a queue with one consumer. Here is how we keep order and still fan out across regions.
Maya Alvarez
· 9 min read
Product
Hookline for Python and Go: SDK parity across three languages
The TypeScript, Python and Go SDKs now share one feature set, one test suite and one release train.
Sofia Lindqvist
· 4 min read
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