Architectures

• Microservices Architecture

Patterns&Principles

• The Database-perService Pattern

• Polygot Persistence

• Decompose services by scalability

• The Scale Cube

• Microservices

Decomposition Pattern

• Microservices Communications

• HTTP Based RESTful API design

• GraphQL API design

• gRPC API Design

Non-FR

• High Scalability

• High Availability

• Millions of Concurrent User

• Independent Deployable

• Technology agnostic

• Data isolation

• Resilience and Fault isolation

FR

• List products

• Filter products as per brand and categories

• Put products into the shopping cart

• Apply coupon for discounts

• Checkout the shopping cart and create an order

• List my old orders and order items history

https://medium.com/design-microservices-architecture-with-patterns/microservices-communications-f319f8d76b71