Tokenized Recipe Sharing Platform

Core Functionality

• Recipe Minting: Users write a recipe in markdown and mint it as an ERC‑721 token with metadata (ingredients, steps, images).
• Marketplace: Simple listing page where recipes can be bought, sold, or auctioned using ETH.
• Voting & Ratings: Buyers can rate recipes; high‑rated ones get featured.
• Developer SDK: A JS library exposing functions to mint, list, and purchase recipes, with hooks for React/Vue integration.

Problem It Solves

Developers often struggle to find real‑world projects that combine blockchain with everyday use cases. This app gives them a concrete, low‑risk domain (recipes) to practice Solidity, IPFS storage, and dApp front‑end development while creating something useful for the community.

Technical Requirements

• Ethereum: Deploy ERC‑721 contract on Goerli or Sepolia testnet.
• IPFS: Store recipe markdown and images off‑chain.
• Web3.js / Ethers.js: Interact with contracts from a web UI.
• Node.js + Express: Simple backend to proxy IPFS uploads and serve the SDK.

Monetization Strategy

• Listing Fees: Small ETH fee (e.g., 0.01 ETH) for each recipe listed.
• Marketplace Commission: Take a 2–3% cut on every sale.
• Premium Features: Optional subscription that unlocks advanced analytics or bulk minting.

Implementation Approach

1. Smart Contract: Write an ERC‑721 contract with mint, transfer, and royalty support using OpenZeppelin libraries. Deploy to a testnet.
2. IPFS Integration: Set up Pinata or Infura IPFS node; create helper function to pin markdown and images, returning CID.
3. Backend SDK: Build Node.js module exposing mintRecipe, listRecipe, buyRecipe. Wrap Web3 calls and handle gas estimation.
4. Front‑end Demo: Simple React app showing a recipe list, mint form, and purchase button. Use MetaMask for wallet connection.
5. Testing & Documentation: Write unit tests with Hardhat, provide README and API docs.
6. Launch: Deploy contract to mainnet, migrate IPFS pins, publish SDK on npm.

Potential Challenges

• Gas Costs: Minting and listing can be expensive. Use meta‑transactions or layer‑2 solutions (Polygon).
• IPFS Pinning: Ensuring recipes remain available requires reliable pinning; partner with a paid IPFS provider.

Future Expansion

• Recipe Bundles: Allow creators to bundle multiple recipes into a single NFT collection.
• Collaborative Editing: Implement off‑chain collaboration with CRDTs, then mint the final version.
• Cross‑Chain Support: Add Polygon or BSC compatibility via wrapped tokens.
• Analytics Dashboard: Provide creators insights on views, sales, and community engagement.