minishop-backend's Introduction

Minishop backend

Microservice-based webshop backend.

🚀 Tech stack

RabbitMQ
SAGA Choreography pattern
Microservice apps in NodeJS, PHP, Python and Java

🎯 Motivation

I created this project to dive into the microservice patterns and RabbitMQ best practices. The goal was to implement a webshop backend with only mock functionality and in-memory databases, focusing on the SAGA Choreography pattern and RabbitMQ configurations in different programming languages.

💡 Features

RabbitMQ communication between microservices
Microservices:
- Cart service:
  - Stack: NodeJS, ExpressJS
  - Functionality: Receives POST /checkout request
- Order service:
  - Stack: NodeJS, NestJS
  - Functionality: Creates, completes and cancels orders
- Payment service:
  - Stack: PHP, Laravel
  - Functionality: Makes payments
- Shipping service:
  - Stack: Python
  - Functionality: Makes shippings
- Mail service:
  - Stack: Java, Spring Boot
  - Functionality: Sends emails

App workflow

Microservice setup

Exchanges

name	type
carts	topic
orders	topic
payments	topic
shippings	topic
emails	topic

Queue bindings

exchange	routing key	name
carts	cart.checkout	orders.create-order
orders	order.created	payments.make-payment
orders	order.completed	emails.send-order-completed-notification
orders	order.cancelled	emails.send-order-cancelled-notification
payments	payment.success	shippings.create-shipping
payments	payment.failed	orders.cancel-order
payments	payment.failed	emails.send-payment-failed-notification
shippings	shipping.success	orders.complete-order
shippings	shipping.failed	orders.cancel-order
shippings	shipping.failed	payments.cancel-payment
shippings	shipping.failed	emails.send-shipping-failed-notification

Test

Payment

card number	result
`3232323232323232`	Payment will be failed immediately
`4242424242424242`	Payment will be failed with 3 second delay
`5252525252525252`	Payment will succeed with 3 second delay
Any other card number	Payment will succeed immediately

Recommend Projects