4.2 Communication Patterns API Gateway Event Driven Microservices

April 4, 2021

Here is the link. 

Forces

• Mismatch between the fine-grained microservices and needs of the clients
• Different clients need different data
• LAN vs. WAN vs. Mobile network performance
• The number of service instances and their locations (host + port) changes dynamically
• Partitioning into services can change over time and should be hidden from clients. 

API gateway pattern 

single entry point - > API Gateway 

Client specific APIs, protocol translation 

AMQP - websocket message - > 

Device specific end points