App Architecture

Idempotency in Distributed Systems That Actually Works

Idempotency in Distributed Systems That Actually Works

Stop duplicate side effects

Idempotency in distributed systems is the property that saves you after the network lies, the queue retries, the client panics, and the operator hits replay. In production systems, duplicate delivery is normal. Duplicate side effects are the bug.

Slack Integration Patterns for Alerts and Workflows

Slack Integration Patterns for Alerts and Workflows

Slack is a workflow UI and alert delivery layer.

Slack integrations look deceptively easy because you can post a message in one HTTP call. The interesting part starts when you want Slack to be interactive and reliable.