API Gateway

https://blog.risingstack.com/building-an-api-gateway-using-nodejs/

API gateway主要是用来实现各个service的公用功能

问题在于使用API gateway所有流量都会经过它，所以它必须可靠稳定

已有开源方案

Netflix/zuul，Kong/kong，openresty/openresty + 自研，TykTechnologies/tyk，Netty + 自研

Features

• routing and versioning
• authentication
• data aggregation
• Serialization format transformation
• Protocol transformation
• Rate-limiting and caching

List

• API proxying
• Logging
• Service discovery and registration
• Service dependencies
• Data sharing and synchronization
• Graceful failure
• Automated deployment and instantiation

Share data:

use one service manage shared data