Chris Richardson: 4.4 Communication Patterns Service Discovery Event Driven Microservices

April 1, 2021

Here is the link. 

Agenda

• Why a pattern language for microservices?
• Core patterns
• Partitioning strategies
• Deployment patterns
• Communication patterns
• Microservices chassis 

Communication patterns

• Overview
• API Gateway
• Inter-process communication
• Service discovery
• Service registration

Pattern: Client-side discovery 

Service client 

Example: Netflix Eureka and Ribbon 

Benefits and drawbacks

Benefits

• Flexible, application-specific load balancing
• Fewer network hops and moving parts compared to Server-side discovery

Drawbacks

• Couples the client to the Service Registry
• Need implement client-side discovery and load balancing logic in multiple languages/ frameworks
• Service Registry is yet another moving part to setup and operate - highly available