Designing Idempotent APIs: From 'Best Effort' to Reliable User Actions
How to design idempotent APIs so users never get double-charged, double-booked, or double-notified, even when clients retry like crazy.
17 posts found
How to design idempotent APIs so users never get double-charged, double-booked, or double-notified, even when clients retry like crazy.
Learn how consumer-driven contract testing helps teams deploy microservices independently without brittle end-to-end tests. Practical guide with Pact examples and CI/CD integration.
Learn how to design and implement saga patterns for handling long-running, cross-service workflows in microservices. From orchestration vs choreography to idempotency and observability.
How to split a growing system into cells so a bad deploy or hotspot hurts only a small part of users instead of everyone.
How to split your system into 'think' (control) and 'do' (data) parts so you can move faster without risking your core traffic path.
How to design web services that slow down gracefully instead of crashing when traffic or downstream latency spikes.
How to design SaaS systems where many tenants share the platform but don't share failure modes, noisy neighbors, or data.
Practical patterns for 'strong enough' consistency in multi-region systems: per-entity guarantees, clear SLAs, and simple conflict handling.
How to move from one big shared cluster to multiple self-contained cells that limit incident impact and isolate noisy neighbors.
A practical blueprint for building idempotent systems that prevent duplicate payments, orders, and writes in distributed systems.