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Decentralized Exchange (DEX) Platform
Why Choose This Project?
Centralized exchanges (CEXs) often suffer from issues like high fees, hacking risks, and lack of user control over assets. A Decentralized Exchange (DEX) removes intermediaries, allowing users to trade tokens directly from their wallets using smart contracts.
Built on blockchain, this platform ensures trustless peer-to-peer trading, enhanced privacy, low transaction fees, and complete user control over funds. It’s perfect for showcasing skills in DeFi, smart contracts, frontend integration, and blockchain architecture.
What You Get
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Complete Source Code (Frontend + Backend + Smart Contracts)
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Token swap interface (like Uniswap UI)
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Real-time price charts with liquidity pool data
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Smart contracts for swapping, liquidity provision, token pricing
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Admin analytics dashboard
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Wallet integration (MetaMask, WalletConnect)
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Full documentation, whitepaper-style PDF & setup instructions
Built With Industry-Standard Stack
Layer | Technologies Used |
---|---|
Frontend | HTML5, CSS3, Bootstrap 5, JavaScript, Web3.js, Ethers.js |
Backend | Node.js (Express.js) / Java (Spring Boot, optional) |
Blockchain | Solidity, Truffle/Hardhat, Ethereum/Polygon Network |
Wallet Auth | MetaMask, WalletConnect |
Data Feeds | CoinGecko API, Chainlink Oracles (optional) |
Security | Smart contract audits, Reentrancy guards, Overflow checks |
Market-Ready Features
Token Swapping Engine
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Swap one ERC-20 token for another using AMM (Automated Market Maker)
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Uses constant product formula (x * y = k) like Uniswap
Liquidity Pools
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Users can provide liquidity and earn a share of trading fees
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LP tokens are issued to track pool share
Real-Time Token Price & Chart
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Shows price fluctuations, swap history, and pool volume
Smart Contract-Powered
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All swaps and liquidity logic handled through Solidity contracts
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Fully trustless, permissionless, and decentralized
Wallet-Based Authentication
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Secure login with MetaMask
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Transactions signed through wallets, no central database
Automated Fee Management
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Transaction fees distributed to liquidity providers automatically
Admin Dashboard (Optional)
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View total liquidity, trading volume, number of swaps, etc.
Transaction History
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Users can track all swap, deposit, and withdraw events via blockchain logs
Working Flow
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User Connects Wallet
MetaMask or WalletConnect -
Token Swap or Liquidity Action
User selects tokens to swap or provide liquidity for -
Smart Contract Executes
Smart contract checks reserves, applies AMM formula, swaps tokens -
Pool Update
Liquidity pool adjusts reserves; new prices calculated -
Transaction Recorded
All events logged on-chain and reflected in UI -
Admin Analytics (Optional)
Admin views swap stats, fee flow, pool usage (off-chain dashboard)