dart_web3_ton #

A The Open Network (TON) extension for the Dart Web3 ecosystem. Connect your applications to TON's unique asynchronous architecture and Jetton ecosystem.

🚀 Features #

• Cell & BoC Logic: Pure Dart implementation of TON's "Bag of Cells" serialization.
• Wallet v3/v4: Support for the most common TON wallet contract versions.
• Jetton Interaction: Standardized API for interacting with TON fungible tokens (Jettons).
• Lite Client Bridge: (Planned) High-performance connectivity to the TON blockchain.

Usage Flow #

sequenceDiagram
    participant A as Application
    participant W as TonWallet (v4)
    participant C as Cell Builder
    participant T as TonCenter
    A->>W: send(to, amount)
    W->>C: build internal message
    C->>C: serialize to BoC
    W->>W: sign with Ed25519
    W->>T: sendBoc(signed_payload)
    T-->>A: msg_hash (Async)

🏗️ Architecture #

graph LR
    Logic [Dart App] --> BoC[Cell Serializer]
    BoC --> TonCenter[TonCenter API]
    
    subgraph Cell_Tree [Recursive Structure]
        Root[Root Cell] --> Ref1[Ref 1]
        Root --> Ref2[Ref 2]
    end
    
    BoC --> Cell_Tree

📚 Technical Reference #

Core Classes #

🛡️ Security Considerations #

• Bounceable Addresses: TON has "Bounceable" and "Non-bounceable" address formats. Using the wrong one for an uninitialized account might result in lost funds.
• Async Execution: Transactions in TON are asynchronous. The SDK provides hooks to poll for message delivery status.
• Sequence Management: TON wallets rely on sequential nonces; ensure your app handles local state correctly to avoid out-of-order errors.

💻 Usage #

Sending TON to a Bounceable Address #

import 'package:dart_web3_ton/dart_web3_ton.dart';

void main() async {
  final ton = TonClient(apiKey: '...');
  final wallet = TonWallet.v4(mnemonic: '...');

  final hash = await wallet.send(
    to: 'EQD...', // Bounceable address
    amount: TonUnit.ton('0.5'),
    stateInit: false,
  );
  
  print('TON msg hash: $hash');
}

📦 Installation #

dependencies:
  dart_web3_ton: ^0.1.0