NFT Marketplace with Self Sovereign Identity

Project Overview

The objective of this project is to develop a secure and user-friendly NFT marketplace where users can seamlessly buy, sell, browse, and create NFTs listed on a blockchain smart contract. A critical focus of the project is implementing robust mechanisms to prevent spam and bot activity, ensuring a safe and fair trading environment for genuine users. By addressing this challenge, the project fosters an authentic and trusted community for artists, collectors, and enthusiasts to engage in NFT transactions.

Key Features

• Buy, Sell, and Browse NFTs: Users can explore and trade NFTs listed on the marketplace.
• Create NFTs: Artists and creators can mint and list their NFTs on the blockchain.
• Spam and Bot Prevention: A security mechanism is integrated to prevent unauthorized access and ensure a fair marketplace.
• Blockchain Integration: Smart contracts are deployed to handle NFT transactions, ensuring transparency and security.
• User Authentication: Secure login and registration system using JWT (JsonWebToken) and bcryptJS for password encryption.
• Real-time Updates: The marketplace provides live updates using Socket.io for seamless user interaction.

Technologies Used

Frontend:

• ReactJS: Building dynamic and responsive user interfaces.
• Axios: Handling API requests for seamless interaction with backend services.
• Redux: State management for predictable UI behavior.
• React-QR-Code: Generating QR codes for user verification.
• Lottie: For animations and enhanced user experience.
• Bootstrap 5: Responsive design and prebuilt UI components.
• React-Router-Dom: For navigation and routing within the app.

Backend:

• NodeJS: Backend server and API development.
• Express: Web framework for handling server-side logic.
• Mongoose: Object Data Modeling (ODM) library for MongoDB.
• Socket.io: Real-time communication between users and the server.
• BcryptJS: Password hashing for secure user authentication.
• Cors: Handling cross-origin requests.
• JsonWebToken (JWT): Token-based user authentication.

Blockchain and Smart Contracts:

• Solidity: Smart contract development for managing NFT transactions.
• OpenZeppelin: Secure smart contract library for NFTs.
• Ethers.js: Interacting with Ethereum blockchain and smart contracts.
• Hardhat: Ethereum development environment and testing framework.
• Alchemy: Blockchain API for interacting with the Ethereum network.
• PolygonID Verifier SDK (iden3js): Verifying user identities and preventing spam.

Languages:

• Solidity: Smart contract development for NFTs.
• Zero-Knowledge Proof Language: Used for identity verification.
• JavaScript: Core language for both backend and frontend logic.
• HTML/CSS: Structuring and styling the user interface.

For More details please checkout the project report.

Output: