📱 GadgetHive — Encrypted Electronic Gadget Marketplace 🛒

GadgetHive is a secure, Python-based web application built using the Flask framework. It serves as an open marketplace where users can register, login, buy, and sell electronic gadgets like smartphones, laptops, smartwatches, and more. With encryption and user authentication, it ensures a safe and interactive shopping experience.

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🚀 Features

• 🔐 User Authentication

  • Register and login securely with password hashing via Flask-Bcrypt.
  • Unique user sessions handled securely using Flask's session management.

• 🛍️ Marketplace Functionality

  • Users can list electronic items for sale with images, prices, and specifications.
  • Browse a marketplace with item listings from other users.
  • Interactive UI/UX for smooth navigation.

• 💳 Item Purchase & Sale

  • Purchase listed items and remove them from open listings.
  • Items include images, brand info, specs, and condition.

• 🎨 Responsive UI

  • Clean Bootstrap 4 integration with custom styling.
  • Particle.js animated background and hover cards for modern look.
  • User testimonials and detailed product catalogue with images.

• 🧱 Tech Stack

  • Backend: Python, Flask, Flask-Bcrypt, Flask-SQLAlchemy
  • Frontend: HTML5, CSS3, Bootstrap 4, JavaScript
  • Database: SQLite3

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📁 Project Structure

FlaskMarket/ │ ├── static/ │ ├── images/ │ └── styles/ │ ├── templates/ │ ├── base.html │ ├── home.html │ └── market.html │ ├── market/ │ ├── init.py │ ├── models.py │ ├── routes.py │ └── forms.py │ ├── run.py └── README.md

🎯 Goal: Learn and implement backend architecture from first principles.

🛠️ What I built:

✅ Secure User Registration/Login System with encrypted passwords via Flask-Bcrypt

✅ Authentication & session management with built-in data checks

✅ A real-time marketplace: users can list, buy, and remove items

✅ Backend-controlled purchase system with transaction logic

✅ SQLite3 Database integrated using SQLAlchemy ORM

✅ Responsive frontend using Bootstrap 4 (UI kept minimal for backend focus)

🔍 What I Learned:

Building and managing a relational database schema

Creating secure authentication flows

Structuring backend routes with Flask Blueprints

Handling user input validation, flash messages, and data queries efficiently

Orchestrating backend logic with a smooth, functional frontend

💡 All components — from encryption to marketplace logic — work in sync to create a secure and intuitive platform. Every function you see is coded and connected by me, making this a complete backend-led full-stack build.