ECOMMERCE2026

TechMart

A full-stack e-commerce learning project built with React, MongoDB, and Express.js. This project helped me understand full-stack development, from frontend React components to backend database integration and authentication.

Project screenshot 1

Technologies

ReactMongoDBExpress.jsREST APITailwind CSSTanStack QueryAxios

Project Duration

3 months

What I built.

  • Product browsing and search
  • Product details with filtering
  • User authentication with JWT
  • Protected routes
  • Shopping cart functionality
  • Wishlist feature
  • Order management
  • Admin dashboard
  • Product management
  • User and order management
  • Responsive design
  • API error handling with query interceptor

Technical Architecture.

React (Frontend)
TanStack Query with Axios Interceptor (API Client)
REST API (API Layer)
MongoDB (Database)
Express.js (Backend Server)

Challenges I faced.

01Authentication with JWT

Problem

Learning to implement secure authentication using JWT tokens while maintaining user sessions.

Solution

Implemented JWT authentication with proper token management and protected routes.

Result

Secure authentication flow with user session management.

02MongoDB Integration

Problem

Learning to structure MongoDB schemas and integrate with React frontend for data persistence.

Solution

Designed MongoDB data models for products, users, and orders with proper relationships.

Result

Functional database integration with CRUD operations.

03Query Interceptor Implementation

Problem

Managing API requests and responses globally with proper error handling and token refresh.

Solution

Implemented Axios interceptor with TanStack Query for centralized API handling.

Result

Consistent API error handling and automatic token refresh.

What I learned.

  • Full-stack development workflow
  • MongoDB database design and integration
  • JWT authentication implementation
  • React state management with TanStack Query
  • API design and frontend-backend communication
  • Axios interceptor for centralized API handling

What I would improve.

  • This was a learning project focused on understanding full-stack concepts.
  • Would add more advanced features like payment integration
  • Could implement real-time updates with WebSocket
  • Plan to add more comprehensive error handling

Results.

  • Full-stack application built from scratch
  • MongoDB database integration working
  • JWT authentication implemented
  • Responsive frontend with React
  • Understanding of full-stack architecture
  • Centralized API handling with query interceptor