Event Driven Microservices

Tech:

• Python
• Django
• Flask
• SQLAlchemy
• MySQL
• RabbitMQ
• Docker

System Architecture

Overview

The app is divided into 2 main microservices:

• Admin
  • Allows CRUD operations on products using Django REST
  • Produces Products' data via RabbitMQ to the main service
  • Consumes RabbiMQ messages from the main service to pefrom updates on products

- Main - Allows to Edit/Delete/Like products where it's updated in the main serivce - Consumes products' data and save it into Flask's db using SQLAlchemy - Produces events to update data in the admin service

How to run the app

• Main
  • cd into the main directory and spin up the server using docker:
    docker-compose up --build
  • ssh into the backend container:
    docker-compose exec backend ssh
  • Create migration files:
    python manager.py db init
  • Apply the db migrations :
    python manager.py db migrate
python manager.py db upgrade
• Admin
  • cd into the admin directory and spin up the server using docker:
    docker-compose up --build
  • ssh into the backend container to:
    docker-compose exec backend ssh
  • Migrate Django's models into the db:
    python manage.py makemigrations
python manage.py migrate

Endpoints

• Main
  • GET /api/products Fetch all products from admin db
  • POST /api/products/<int:id>/like Like a product
• Admin
  • GET /api/products Get all products
  • POST /api/products Create a new product
  • GET /api/products/<str:pk> Get one product
  • PUT /api/products/<str:pk> Update product
  • DELETE /api/products/<str:pk> Delete product