QKart is an E-commerce application offering a variety of products for customers to choose from.
➡️ Description of the application:
☑️ Built the complete set of REST APIs for an E-commerce application following the best practices
☑️Followed a layered approach for easy maintenance
☑️Used MongoDB NoSQL database for data storage
☑️Implemented multiple authentication schemes
☑️Wrote unit and integration tests to test the implementation
QKart Layered Architecture
➡️Set up application and implement the first API
☑️ Implemented GET /v1/users API endpoint to send user data to clients
☑️Followed a layered approach to implement the request-response cycle for ease of maintenance
☑️Used Mongoose (Node.js-MongoDB ODM) to fetch user data from MongoDB
☑️Defined JOI schema to easily validate client requests
☑️Utilized middlewares to reduce code duplication
🔨 Skills used: Node.js, Express.js, MongoDB, Mongoose ODM, JOI validation
➡️ Secure API endpoints and implement register/login APIs
☑️ Implemented logic to generate short-lived JWT tokens
☑️ Set token authentication strategy by using the Passport library
☑️ Created POST APIs for user registration and login
☑️ Implemented password authentication to facilitate register / login flow
🔨 Skills used: REST APIs, Token authentication, JWT Token, Password authentication, Hashing
JWT Token authentication flow for QKart APIs
➡️ Implement APIs related to shopping cart
☑️ Implemented the GET/POST/PUT API endpoints for a user’s shopping cart
☑️ mproved the GET /v1/users endpoint by supporting filtering for user address via query parameters
🔨 Skills used: REST APIs, Filtered API Queries
➡️ Complete the checkout logic using TDD
☑️ Added Jest-based assertions to unit tests for checkout requirements provided
☑️ Implemented the checkout logic in a Test-driven development style
☑️ Utilized integration tests to find and resolve bugs on integrating checkout logic to the application
🔨 Skills used: Test-driven development, Unit testing, Integration testing, Jest framework
➡️ Deploy the QKart backend server
☑️ Created a MongoDB instance on MongoDB Atlas cloud and uploaded products data to the cloud DB.
☑️ Deployed the QKart Node.js app to Heroku
☑️ Deployed the QKart React frontend to Netlify after configuring it to use the deployed Node.js backend.
🔨 Skills used: MongoDB Atlas, Deployment, Heroku, Netlify