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shopping-cart

A full stack implementaion of shopping cart functionality with React, Node.js, MongoDB, Express and Redis. Whole project is being developed using TypeScript.

Installation

In order to run this project locally, you need to have docker and docker-composed installed.

  • Clone this git repository
  • At the root folder of the project run docker-compose build command
  • After build completed, run docker-compose up command
  • You can access the app at http://localhost:5000 address.

Project Overview

Frontend part of the project is built using react, redux-toolkit, TypeScript, socket.io, bulma and configured with webpack.

Backend is using Node.js, Express, Redis, socket.io and MongoDB.

  • Users can update stock quantity of any item with or without logging in to the system.
  • Users can add producst to their cart with out withou logging in to the system.
  • If they add items to their cart first and login later on, their cart keeps the items and update their cart info at the database.
  • If they sign in without any items added to their cart, the app checks the database if the user has any items in his/her cart from previous sessions.
  • Authentication is provided with session based authentication. Redis is used as session store.
  • If a logged in user opens the app in two different tabs, the updates made in one tab is reflected immediately with a notification modal in the other tab.
  • .env file is committed for the app to be rebuilt without any configuration. It should not be commited to public repositories normally.
  • User sessions are valid for 30 minutes. After this period, their session expires. The app follows this with server side session, a http only cookie with 30 mins. expire time and a normal cookie providing true/false value with 30 mins expire time. The frontend app checks for this true/false value to send a validation request for authetication. At a production level app, the standard cookie can be ommited from the app and the authentication can be provided only via checking server side session with http only cookie and server side rendering.