micabe / flowersbasket

Microservice architecture with FastAPI + Apache Kafka.

"Flowers Basket" - Microservice Architecture demo project.

Codebase on GitHub.

Implementation

The System decomposed into microservices using Domain Driven Design, where each service:

• serves clearly differentiated area of logic
• has no strong dependencies towards other services
• owns its own data

Services communicate through the real time Messaging System (Apache Kafka).

Microservices

• "Users" - Identity Provider (REST API: FastAPI PostreSQL) README
• "Products" - Products management (GraphQL: Ariadne MongoDB) README
• "Orders" - Orders management (REST API: FastAPI PostreSQL) README
• "Studio" - Orders processing (Web Application: Django PostreSQL) README
• "Kafka" - Runs Apache Kafka README

Workflow example

User registration

127.0.0.1:8001/v1/register/

POST request: "username", "email", "password", "password_confirm"

Requesting JWT token

127.0.0.1:8001/v1/token/

POST request with "form-data": "username", "password"

Getting Products list

127.0.0.1:8002

POST request

{
  allProducts {
    ...on ProductInterface {
      name
    }
  }
}

Creating a new Order

127.0.0.1:8003/v1/orders

POST request with Order Items (including Authorization header)

Schedule the Order

127.0.0.1:8003/v1/orders/<order_id>/pay

POST request (including Authorization header)

Scheduled Orders management

127.0.0.1:8004/admin