Sending TONs

Its possible to send TONs to any account using wallet contracts presented in TonSdk.Contracts.Wallet.

For example, we will use WalletV4. You can find more examples for different contracts here.

// create http parameters for ton client 
HttpParameters tonClientParams = new HttpParameters 
{
    Endpoint = "https://toncenter.com/api/v2/jsonRPC",
    ApiKey = "xxx" 
};

// create ton client to fetch data and send boc
TonClient tonClient = new TonClient(TonClientType.HTTP_TONCENTERAPIV2, tonClientParams);

// create new mnemonic or use existing
Mnemonic mnemonic = new Mnemonic();

// create wallet options
WalletV4Options options = new WalletV4Options()
{
    PublicKey = mnemonic.Keys.PublicKey,
};

// create wallet instance
WalletV4 wallet = new WalletV4(optionsV4, 2); 

// define receiver address or get receiver address from ton domain name system
// Address receiver = new Address("/* destination address */");
Address receiver = await tonClient.Dns.GetWalletAddress("continuation.ton");

// define amount to send
Coins amount = new Coins(2); // 2 TON

// define text message to send
string memo = "Hello world!";

// create transaction body query + memo
Cell body = new CellBuilder().StoreUInt(0, 32).StoreString(memo).Build();

// getting seqno using tonClient
uint? seqno = await tonClient.Wallet.GetSeqno(wallet.Address);

// create transfer message
ExternalInMessage message = wallet.CreateTransferMessage(new[]
{
    new WalletTransfer
    {
        Message = new InternalMessage(new InternalMessageOptions
        {
            Info = new IntMsgInfo(new IntMsgInfoOptions
            {
                Dest = receiver,
                Value = amount,
                Bounce = true // make bounceable message
            }),
            Body = body
        }),
        Mode = 1 // message mode
    }
}, seqno ?? 0); // if seqno is null we pass 0, wallet will auto deploy on message send

// sign transfer message
message.Sign(mnemonic.Keys.PrivateKey);

// get message cell
Cell cell = message.Cell;

// send this message via TonClient
await tonClient.SendBoc(cell);