sidinei-silva / nestjs-monorepo-pub-sub

Projeto para estudo de monorepo com nestjs e comunicação pub/sub

Project under construction... 🛠️

Description

This project was used for studies of the following topics:

• Nestjs Monorepo
• Yarn workspace for monorepo
• Docker and docker composer for monorepo
• Redis Database
• Microservice async communication with pub/sub
• Pub/sub with NestJs and redis
• Prisma ORM
• Prisma ORM with monorepo

Get Started

This project contains docker compose with off configuration. To run project:

• copy content file .env.example to .env
• run command docker-compose up

Tecnical Description

This project was created with the Nestjs monorepo standard, and was separated into services that communicates with Async Pub/subs using Redis.

Services

• order-service: Service for orders
• billing-service: Service for billing order
• shipping-service: Service for shipping order

Order Service

Contains http request and communications pub/sub

Http Requests:

• [POST] /orders - Create order
  Body Example:

  {
    "userId": 1,
    "products": [
      {
        "name": "Mouse Gamer",
        "price": 10
      }, 
      {
        "name": "Teclado Gamer",
        "price": 5
      }
    ]
  }

• [GET] /orders - List two lasts orders

• [GET] /orders/:id - Get One Order

• [GET] /clean - Delete all orders

Flow de pub/sub

1. Request POST /orders to create order
2. [Order Service] emit event OrderService:newOrder
3. [Billing Service] listen OrderService:newOrder
4. [Billing Service] run random True or False
5. [Billing Service] emit BillingService:billing with random result and status date
6. [Order Service] listen BillingService:billing and include status in order
7. [Shipping Service] listen BillingService:billing and verify status billing
8. [Shipping Service] If status billing trus emit ShippingService:shipping with status and date
9. [Order Service] listen ShippingService:shipping and include shippingStatus in order

Autor

• name: Sidinei Silva
• email: [e-mail]