Chapter 6: API Gateway vs Service Mesh in Microservices Architecture
Prerequisite: Before reading this chapter, please ensure you have read the previous article in this series: Chapter 5: Unlocking Database Performance via Connection Pooling. When your Golang application scales from dozens to hundreds of Microservices, managing communication becomes a macro-level challenge. You will constantly encounter two tightly coupled concepts: API Gateway and Service Mesh. Many engineers ask: “If I already deploy Istio (Service Mesh), do I still need Kong (API Gateway)?” The answer lies in the fundamental difference between North-South and East-West traffic. ...