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Webhook · custom flow

For event flows where "sometimes it works" isn't acceptable.

Stripe webhooks, Calendly bookings, Shopify orders, Twilio SMS replies — these are the events that, if missed, cost you money or trust. Zapier and Make are great until the volume passes 50k/month or the latency requirement drops below 30 seconds. Then you need real architecture.

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RECEIVE

Edge-deployed

Cloudflare Worker or AWS Lambda — sub-100ms ingest from anywhere.

VERIFY

Signature checks

HMAC validation on every payload. Replay-attack windows enforced.

QUEUE

Persistent

Postgres or SQS. Events durably stored before any processing.

PROCESS

Idempotent

Duplicate events are no-ops. Reruns safe. Outbox pattern where it matters.

RETRY

Exponential backoff

Transient failures retry up to 8 times. Permanent failures alert.

OBSERVE

Full trace

Every event tagged with a trace ID, queryable end-to-end in Datadog or your tool.

Built where it has to scale.

We've built webhook architectures handling 2M+ events daily for fintech and e-commerce clients. The principles are the same at any volume — idempotent, observable, recoverable — but the platform choices vary. We pick what fits your stack, not what fits a portfolio.

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