Learning RESTful microservices from the ground up

Description

A RESTful approach to microservices can improve the stability and resilience of services, reduce the need for extensive changes and redeployment when the domain model changes, and greatly increase the flexibility of individual services, including the ability to automatically work with other newly discovered services. Mike Amundsen walks you through building adaptable microservices that take advantage of the features of REST, including statelessness, self-description, and using hypermedia to discover and modify application state. You’ll learn how to design services that advertise themselves to the network, discover their own “partner” services, and can adapt to subtle changes to existing services without relying only on recode-and-redeploy patterns for maintaining overall system operation.

Outline

What are RESTful microservices?

• Microservices
• RESTful-ness
• A new kind of service
• Hands-on exercise: Analysis

Models, messages, and vocabularies

• Models on the inside
• Messages on the outside
• Vocabularies everywhere
• Hands-on exercise: Design

Three types of microservices

• Stateless
• Persistence
• Aggregator
• Hands-on exercise: Implementation

Six stability patterns

• Timeout
• Circuit breaker
• Bulkhead
• Steady state
• Failfast
• Handshaking
• Hands-on exercise: Stability

Runtime service infrastructure

• Advertising
• Discovery
• Health
• Hands-on exercise: Discovery

An adaptable system

• Evolvable providers
• Adaptable consumers
• The power of numbers
• Hands-on exercise: Adaptation

Wrap-up

• A RESTful Approach
• Message-oriented implementation
• Discovery constraints
• Emergent adaptability