ReSello

A peer-to-peer marketplace for reselling electronics — think eBay, but scoped to a university community. Students list gear they no longer need and buy from peers on the same campus, instead of shipping through a general marketplace.

Built on the MEAN stack (MongoDB, Express, Angular, Node.js) as a personal upskilling project. Still under active development — see Features below for what's implemented so far.

Tech stack

Layer	Technology
Frontend	Angular 17, Angular Material, Tailwind CSS
Backend	Node.js, Express 4
Database	MongoDB (Mongoose)
Auth	JWT + bcrypt
File storage	AWS S3 (presigned URLs for image upload)

Features

Implemented

• User registration & login (JWT-based sessions, bcrypt password hashing)
• Buyer/seller roles per user
• Item listings — create, edit, delete, browse, categorize
• Image upload for listings via S3 presigned URLs
• Seller dashboard with listing management and basic sales analytics
• Single-item order placement ("Buy Now"), which marks the item sold

Not yet implemented

• Payment processing
• Order history / tracking view
• Reviews & ratings submission
• Buyer–seller messaging
• Notifications
• Wishlist / favorites
• Admin moderation tools
• Password reset & email verification

Project structure

ReSello/
├── Backend/                 # Express API
│   ├── app.js                # entry point, route mounting, S3 endpoints
│   ├── Routes/                # userRoutes, itemRoutes, categoryRoutes, orderRoutes
│   ├── Middleware/auth.js     # JWT verification middleware
│   └── database/
│       ├── mongoose.js        # DB connection
│       └── Models/             # User, Item, Category, Order, Payment, Review
├── Frontend/                 # Angular app
│   └── src/app/
│       ├── accountComponent/   # login / signup
│       ├── homeComponent/      # browse feed, item detail, cart
│       ├── dashboardComponent/ # profile, listings, analytics
│       ├── itemComponent/      # item CRUD views
│       ├── userComponent/      # user CRUD views
│       └── app-common/         # shared CommonService (HTTP, auth state, S3 upload)

Getting started

Prerequisites

• Node.js (v18+ recommended)
• A MongoDB database (Atlas or local)
• An AWS S3 bucket (for listing images)

1. Clone the repo

git clone https://github.com/amaldevcm/ReSello.git
cd ReSello

2. Backend setup

cd Backend
npm install

Create a Backend/.env file:

NODE_ENV=development
DB_URL=your-mongodb-connection-string
JWT_SECRET=your-jwt-signing-secret
AWS_ACCESS_KEY_ID=your-aws-access-key
AWS_SECRET_ACCESS_KEY=your-aws-secret-key
AWS_BUCKET_NAME=your-s3-bucket-name
AWS_REGION=your-aws-region

Run the server:

node app.js

The API listens on http://localhost:3000 by default.

3. Frontend setup

cd Frontend
npm install
npm start

The app serves on http://localhost:4200 by default and expects the API at the URL configured in Frontend/src/environments/environment.ts.

Available scripts

Frontend (Frontend/)

Command	Description
npm start	Run the dev server (ng serve)
npm run build	Production build
npm test	Run unit tests
npm run lint	Lint the codebase
npm run e2e	Run end-to-end tests

Backend (Backend/)

Command	Description
node app.js	Start the API server