Designing a Rock‑Solid High‑Availability Solution for Unreliable Third‑Party Services
When third‑party services frequently fail, this article walks through a systematic high‑availability design—including an ACL anti‑corruption layer, strategy‑pattern master‑slave routing, precise rate limiting, circuit‑breaker fallback, full observability, async degradation, and mock testing—to keep external dependencies as stable as a mountain.
