A decentralized review system leveraging blockchain technology to provide a secure, transparent, and tamper-proof platform for online reviews. Built with Ethereum, IPFS, and Smart Contracts, this project addresses the limitations of centralized review systems.
- Overview
- Features
- System Architecture
- Functionalities
- User Interface
- Technology Stack
- Setup Instructions
- How It Works
- Future Enhancements
- Contributors
- Acknowledgments
- License
Online review systems are often manipulated, leading to a lack of trust and reliability. This project aims to overcome these challenges by using blockchain technology to make reviews immutable, transparent, and trustworthy.
- Tamper-Proof Reviews: Data stored using IPFS and verified through Ethereum ensures immutability.
- Decentralized Architecture: Removes reliance on a central authority, giving users complete control over their data.
- User Rewards: Reviewers earn points for contributions, encouraging participation.
- Flood Prevention: Restricts users to one review per product to ensure authenticity.
- Transparent Verification: All reviews and transactions are publicly verifiable on the blockchain.
- Blockchain: Ethereum serves as the foundation for smart contracts and data verification.
- IPFS: Acts as a decentralized file storage system for product and review data.
- Frontend: Angular-based interface for seamless interaction with the system.
- Add Product: Product owners can register products with metadata stored securely.
- Submit Reviews: Users can add reviews and ratings for registered products.
- View Reviews: Reviews can be fetched and displayed transparently using blockchain-stored hashes.
- Redeem Points: Reviewers can convert earned points into rewards.
- Dashboard: Overview of system activities, including added products and reviews.
- Add Places: Enables product owners to add products with metadata.
- View Places: Displays registered products with filtering options.
- Add Review: Interface for users to write detailed reviews.
- User Profile: Summarizes user activity, including added products and reviews.
- Redeem Points: Allows users to redeem accumulated points for rewards.
- Frontend Framework: Angular for a dynamic user experience.
- Blockchain: Ethereum for secure and immutable transactions.
- Storage: IPFS for decentralized and cost-effective file storage.
- Smart Contracts: Solidity to implement system logic.
- Install a package manager (e.g., npm or yarn) for managing dependencies.
- Install a blockchain development environment (e.g., Truffle, Hardhat, or Remix IDE) to deploy smart contracts.
- Ensure MetaMask or another Ethereum wallet is configured for testing.
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Clone the repository:
- Download or clone this repository to your local system.
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Install frontend dependencies:
- Navigate to the frontend folder and install required dependencies using your package manager.
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Deploy the smart contract:
- Use your preferred blockchain development environment to deploy the smart contract (
MyContract.sol).
- Use your preferred blockchain development environment to deploy the smart contract (
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Update configuration:
- Add the deployed contract address and required API keys to the frontend configuration.
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Run the application:
- Start the development server for the frontend to test the application locally.
- Product Registration:
- Owners register products by uploading metadata to IPFS. The IPFS hash is stored on the blockchain.
- Review Submission:
- Users add reviews, which are uploaded to IPFS. Their hashes are linked to the product on the blockchain.
- Review Display:
- Stored hashes are queried from the blockchain to fetch reviews from IPFS for display.
- Enhanced Storage Systems: Explore faster and more efficient decentralized storage options.
- AI-Powered Fraud Detection: Analyze user behavior to identify and mitigate fake reviews.
- Language Filtering: Introduce tools to ensure professional language in reviews.