API Gateway is a type of service in a microservices architecture which provides a shared layer and API for clients to communicate with internal services. The API Gateway can route requests, transform protocols, aggregate data and implement shared logic like authentication and rate-limiters.

API网关是一种在微服务架构中对外提供统一接口，队内进行内部服务调用的中间层。API网关可以分发路由、转换协议、收集数据、继承通用接口 比如认证、以及限流。

API Gateway as an entry point to microservices

API网关能够实现的功能

  1. 统一的认证 Authentication
  2. 整合、收集数据 Data aggregation
  3. 转换数据格式 Serialization format transformation
  4. 转换协议 Protocol transformation
  5. 流量限制以及缓存

吹逼角度

微服务，架构演化，组件协同，熔断，恢复 从数据供应链的角度讲讲