memecoin-launchpad

byDinesh Babar

Act as a Senior Web3 Full-Stack and Smart Contract Engineer. I want to build a decentralized memecoin launchpad and bonding curve platform similar to Pump.fun. Please design and write the complete codebase and architecture for this platform with the following specifications: 1. Target Blockchain & Tech Stack: - Blockchain: Solana (using Anchor framework / Rust) OR Ethereum/EVM (using Solidity, Hardhat/Foundry). Let's build for [Specify: Solana / EVM]. - Frontend: React.js / Next.js with Tailwind CSS. - Wallet Integration: Solana Wallet Adapter (Phantom, Solflare) or MetaMask/Rainbow for EVM. 2. Core Smart Contract / Program Features: - Token Factory: Allow any user to deploy a new memecoin with a name, ticker symbol, and image metadata (stored via IPFS or Arweave). - Bonding Curve Mechanics: - Implement a deterministic bonding curve (e.g., linear or exponential curve) where early buyers get a lower token price. - Define virtual reserves (e.g., virtual SOL and virtual token reserves) to govern the pricing formula (like Constant Product AMM: x * y = k). - Buy & Sell Functions: - `create_token`: Initializes the bonding curve state and mints supply. - `buy`: Handles native currency (SOL/ETH) in, transfers tokens out, deducts a small platform fee (e.g., 1%), and updates the curve state. - `sell`: Accepts token returns, deducts fees, and returns native currency to the user. - Graduation / Migration Milestone: - When the token's market cap or bonding curve reaches a specific target (e.g., \$69,000 market cap), automatically graduate the token by migrating the accumulated liquidity into a DEX pool (like Raydium on Solana or Uniswap on EVM) and burn the liquidity provider (LP) tokens to prevent rug pulls. 3. Frontend & UI Requirements: - Homepage showing a real-time feed of newly created tokens, trending tokens, and completion progress bars toward the DEX migration goal. - Token detail page with a live price chart (Candlestick/TradingView style), a trade panel (Buy/Sell interface with slippage settings), and a holder distribution list. - A "Create Coin" modal form to input Name, Ticker, Description, Image Upload, and Twitter/Telegram links. 4. Deliverables requested: - Step 1: The core Smart Contract / Rust (Anchor) or Solidity code with thorough comments. - Step 2: The TypeScript/JavaScript SDK or hooks to interact with the contract (buying, selling, creating). - Step 3: The Next.js frontend components for the token creation and trade view. - Step 4: A brief deployment and local testing guide. Please write clean, production-ready code with built-in safety checks against overflow, re-entrancy (for EVM), or unauthorized state manipulation.