An application that implements a Command Query Responsibility Segregation (CQRS) and Event Sourcing framework to implement and manage a shopping basket system using EventFlow framework.

Features

• Event Store and Read Model/Database using EntityFramework Core (InMemory Provider)
• Swashbuckle to generate API documentation + UI to explore and test endpoints
• AutoRest to generate a client library
• Validation done with FluentValidation

Core Requirements

• .NET Core 2.1

# build
dotnet build -c Release -o src/ShoppingBasket.WebApi

# start the app
dotnet src/ShoppingBasket.WebApi/bin/Release/netcoreapp2.1/ShoppingBasket.WebApi.dll

# access
https://localhost:5001/swagger # -- this will open Swagger UI

System is based on the Onion Architecture

CQRS/ES using EventFlow

• Product management is done externally
• Customer account already exists in the system

POST /api/v1/basket

{
  "customerId": "eb042700-242e-49ee-9a5b-842a9cabb455"
}

GET /api/v1/basket/{basketId}

POST /api/v1/basket/{basketId}

{
  "productName": "Product 1",
  "price": 10.99,
  "quantity": 2
}

PUT /api/v1/basket/{basketId}

{
  "productName": "Product 1",
  "quantity": 4
}

DELETE /api/v1/basket/{basketId}

{
  "productName": "Product 1"
}

DELETE /api/v1/basket/{basketId}/clear

• API doc is also available via Swagger and testing can be done by Swagger UI (https://localhost:5001/swagger)