Welcome to Web3 Development! Learn how to build decentralized applications (dApps) that interact with blockchain networks. This section covers everything from connecting wallets to building full-stack dApps.

graph TD
    A[🌐 Web3 dApp] --> B[⚛️ Frontend]
    A --> C[🔗 Web3 Library]
    A --> D[📜 Smart Contracts]
    A --> E[💾 Storage]
    
    B --> B1[React/Vue/Angular]
    C --> C1[ethers.js / web3.js]
    D --> D1[Solidity Contracts]
    E --> E1[IPFS / Arweave]
    
    style A fill:#e1f5ff
    style B fill:#ffe1ff
    style C fill:#e1ffe1
    style D fill:#ffe1e1
    style E fill:#fffde1

1. Web3 Fundamentals 🎯

   • What is Web3?
   • dApp architecture
   • Web3 vs Web2
   • The Web3 stack

2. Connecting to Blockchain 🔗

   • Web3 providers
   • RPC endpoints
   • Network configuration
   • Reading blockchain data

3. Ethers.js vs Web3.js ⚖️

   • Library comparison
   • When to use each
   • Code examples
   • Migration guide

4. Wallet Integration 🦊

   • MetaMask connection
   • WalletConnect
   • Wallet state management
   • Handling transactions

Create your first dApp:

# Create React app
npx create-react-app my-dapp
cd my-dapp

# Install dependencies
npm install ethers wagmi viem

# Start development
npm start

• ethers.js - Modern Web3 library
• wagmi - React hooks for Ethereum
• RainbowKit - Wallet connection UI
• The Graph - Query blockchain data
• IPFS - Decentralized storage

1. ✅ Understand Web3 fundamentals
2. ✅ Connect to blockchain networks
3. ✅ Integrate wallet connections
4. ✅ Read smart contract data
5. ✅ Send transactions
6. ✅ Handle events and logs
7. ✅ Build full-stack dApps

Start Learning: Web3 Fundamentals →