Deep dives into webhook engineering, cost analysis, architectural patterns, and practical guides from the team building GetHook.
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Svix is a mature, well-regarded product. So is GetHook. But they solve meaningfully different problems — and choosing the wrong one will cost your team months of re-architecture. Here's an honest breakdown.
Hookdeck is a mature inbound webhook gateway with an excellent local dev story. GetHook handles both directions, costs less, and includes white-labeling on every plan. Here's how to decide which fits your architecture.
Latency, traffic, errors, and saturation were designed for request-response systems. Here's how to reframe each signal for the unique failure modes of webhook delivery infrastructure.
Most webhook consumer bugs share the same root causes: synchronous processing, missing idempotency, skipped signature verification. Here's how to write a production-grade Go webhook handler that avoids all three.
Exponential backoff is the right starting point for webhook retries, but a production retry policy needs to handle HTTP status codes differently, respect destination health state, and avoid hammering an endpoint that is provably down.
When your platform lets users register arbitrary destination URLs, you've built a potential server-side request forgery vector. Here's how to close it — with URL validation, DNS rebinding defense, and safe HTTP client construction.
Your application commits a database transaction, then crashes before enqueuing the webhook. The event is lost and your customer never finds out. The transactional outbox pattern closes this gap permanently.
Accepting malformed webhook payloads into your delivery pipeline creates subtle bugs that surface hours later. Here's how to enforce JSON Schema validation at the gateway layer to reject bad events early, with real trade-offs and implementation details.
Most webhook platforms tell you whether a delivery succeeded at the HTTP layer — but that's not the same as knowing whether your consumer processed the event correctly. Here's how to design delivery receipts that give senders meaningful signal without coupling them to consumer internals.
When your webhook consumer can't keep up, the failure mode matters more than the failure itself. Here's how to design consumer endpoints that degrade gracefully, signal backpressure correctly, and recover cleanly — without losing events or triggering retry storms.
Batching webhook events reduces overhead for both producers and consumers, but it introduces new failure modes that can silently drop events. Here's how to get the throughput wins while keeping delivery guarantees intact.
Every webhook system eventually hears the request: 'Can you guarantee exactly-once delivery?' The honest answer is no — and understanding why leads to a design that's actually safer than any guarantee you could offer.
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