Technical articles, working notes, and lessons from building software.https://blog.estebanmurcia.dev/enhttps://blog.estebanmurcia.dev/posts/starting-this-blog/https://blog.estebanmurcia.dev/posts/starting-this-blog/A home for technical articles, working notes, and lessons worth keeping.Wed, 12 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/designing-idempotent-apis/https://blog.estebanmurcia.dev/posts/designing-idempotent-apis/A practical model for idempotency keys, request fingerprints, stored outcomes, and safe retry behavior.Tue, 11 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/money-with-bigdecimal/https://blog.estebanmurcia.dev/posts/money-with-bigdecimal/Small Java rules that prevent surprising amounts, comparisons, and rounding behavior.Mon, 10 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/tracing-a-request-across-services/https://blog.estebanmurcia.dev/posts/tracing-a-request-across-services/A repeatable way to correlate a failing request through gateways, APIs, queues, and workers.Sun, 09 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/sync-vs-async-integration/https://blog.estebanmurcia.dev/posts/sync-vs-async-integration/A comparison based on user latency, consistency, failure handling, and operational cost.Sat, 08 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/notes-on-effective-debugging/https://blog.estebanmurcia.dev/posts/notes-on-effective-debugging/A compact loop for turning vague symptoms into small, falsifiable explanations.Fri, 07 Aug 2026 00:00:00 GMThttps://blog.estebanmurcia.dev/posts/demystifying-authentication-in-spring-security/https://blog.estebanmurcia.dev/posts/demystifying-authentication-in-spring-security/A guided tour through Spring Security authentication, providers, filter chains, and security context persistence.Wed, 19 Mar 2025 00:00:00 GMT