Mediumhigh level designdistributed systemsmicroservicesThe API Gateway: One Front Door for a Hundred ServicesWhen a mobile screen fires a dozen calls to a dozen services, each doing its own auth and its own CORS, the answer isn't a smarter client — it's a single entry point that owns the cross-cutting concerns once.Asked at Netflix, Amazon, Uber +2Aug 8, 2026·15 min read