🧿 Solana Wallet App — Flutter + Web3

A modern crypto wallet built with Flutter and Solana. Easily view charts, manage wallets, swap tokens, and track transactions — all in one smooth mobile experience.

✨ Features 📊 Live Crypto Chart Realtime price chart for SOL/USDT with candlesticks.

🔐 Create / Restore Wallet Generate a new Solana wallet with 12-word mnemonic or restore an existing one.

💱 Token Swap (SOL ⇄ USDT) Instantly swap between SOL and USDT via on-chain logic.

📜 Transaction History View past transactions, with full detail and token transfers.

✅ Mnemonic Confirmation Flow Secure onboarding with phrase verification to protect user funds.

🔧 Dependencies & Tech Highlights

Type	Package	Description
🧠 State Mgmt	flutter_bloc, equatable	Clean, reactive architecture using the BLoC pattern.
🛠 Codegen	freezed, json_serializable, build_runner	Generate data classes, unions, and handle serialization.
💾 Storage	flutter_secure_storage	Secure storage of wallet data.
🧮 Charts	fl_chart, syncfusion_flutter_charts	Supports Candlestick and line charts.
🌐 Networking	dio, convert, intl, crypto	API calls, formatting, and cryptographic operations.
🌍 Routing	go_router	Declarative routing for better navigation management.
🧩 UI	flutter_svg, cupertino_icons	Icons and SVGs for a rich user interface.
🔗 Web3 & Solana	solana, solana_web3, ed25519_hd_key, bs58, pinenacl	Solana wallet management, signing, base58 encoding, and HD key derivation.

📸 Screenshots

🚀 Getting Started bash

git clone [https://github.com/yourusername/solana-wallet-app](https://github.com/Liyafar27/solana_wallet_web3.git
cd solana-wallet-app
flutter pub get
flutter run

You’ll need a Phantom-compatible Solana devnet wallet and optionally set up your own RPC endpoint.

🛡️ Disclaimer This project is for educational purposes only. Always test with Solana devnet before using on mainnet.

🔒 Security & Privacy

This app is 100% self-custodial:

• The mnemonic phrase and private keys are generated and stored only in memory.
• Nothing sensitive is sent over the network.
• Users are responsible for backing up their wallet securely.
• All transactions are signed locally.

We never store or transmit private keys or mnemonics.