Blog

Things we're building
and thinking about.

2026

October

API Authentication and Authorization: A Technical Deep DiveA deep dive into API authentication and authorization mechanisms, including OAuth 2.0, JWTs, and authorization models for secure API design.

September

Idempotency in APIs: Designing Operations That Can Be Safely RetriedA comprehensive guide to idempotency in API design, exploring why retries happen, how idempotency keys work, and practical system design considerations for building resilient distributed systems.Applying Enterprise Architecture to Everyday AutomationHow a simple payment reminder system for a small business illustrates core principles of Enterprise Architecture, including idempotency, separation of concerns, and conceptual design.Welcome to the Saulwall BlogAn introduction to the Saulwall blog, detailing what we are building and the technical thinking behind it.