CS50 Web Programming with Python and JavaScript – Commerce

This is my implementation of Project 2: Commerce from Harvard's CS50 Web Programming course.
The project is an eBay-like e-commerce auction site where users can post listings, place bids, add comments, and manage watchlists.

Features

User Authentication - Register, log in, and log out functionality. - Each user has their own account to manage listings and bids.

Create Listings - Authenticated users can create new auction listings. - Each listing includes a title, description, starting bid (price), optional image URL, and category.

Active Listings Page - Homepage shows all active listings. - Each listing displays its current highest bid.

Listing Page - Shows details of a specific listing. - Authenticated users can: - Place a bid (must be higher than the current bid). - Add or remove the listing from their personal watchlist. - Post comments on the listing. - The creator of the listing can close the auction, declaring the highest bidder as the winner.

Watchlist - Users can view and manage a personalized watchlist of saved listings.

Categories - Users can browse listings filtered by categories.

Comments - Users can comment on listings, and comments are displayed under each listing.

Models

• User – extends Django’s AbstractUser.
• Listing
  • title, description, price, image_url, date, categories, is_active, user_id.
• Bid
  • listing_id, user_id, bid, timestamp.
• Comments
  • listing_id, user_id, comment, timestamp.

---

How to Run

1. Clone the repository

   git clone <your-repo-url>
   cd commerce
   

2. Install dependencies

    pip install -r requirements.txt
   

3. Apply migrations

    python manage.py makemigrations
    python manage.py migrate
   

4. Create a superuser (optional, for admin access)

   python manage.py createsuperuser
   

5. Run the development server

    python manage.py runserver
   

6. Open the site in your browser http://localhost:8000