"One person's junk is another person's treasure."

An e-commerce app for the exchange of junk, built using a microservices architecture. The client is a Nextjs React app and the back end services are all Node Express apps.

It is designed to be deployed using docker images in a kubernetes cluster. It makes use of github actions for its CI/CD pipeline.

To run this project, ensure you have docker desktop and skaffold installed. Then run:

skaffold dev

This application is comprised of a number of different services to explore a variety of different concepts used in a microservices architecture. These are:

• auth - handles the creation of users and their authentication
• client - provides a useable front end for users to interact with
• expiration - handles the expiration of orders. A user can reserve a piece of junk and has a limited time to pay for it before it is released for other users to order.
• junk - handles the creation and update of pieces of junk
• orders - handles the reservation and ordering of junk
• payments - handles charging users for junk

All the back end services are built using Node and Express. Most use MongoDB for their database. The expiration service uses Redis for its timers. The client was built using Next js.

All the services and databases in this app are designed to be deployed using docker images in a kubernetes cluster. The environment, setup, and deployment files detailing this can be found in the infra/k8s directory.

The common directory contains common code in a module that is shared between all back end services. This approach allows for easy code reuse, without having to rewrite the implementation in each service.

The back end was the focus of this project, so all back end services have a full suite of tests. This project was developed using a test driven approach. All services use Jest as the test runner.