import TonWeb from "tonweb";
import TonWebMnemonic from "tonweb-mnemonic";
import { DEX, pTON } from "@ston-fi/sdk";
const MNEMONIC = Array.from({ length: 24 }, (_, i) => `your mnemonic word ${i + 1}`); // replace with your mnemonic
const tonWeb = new TonWeb();
const client = new TonWeb.HttpProvider();
const keyPair = await TonWebMnemonic.mnemonicToKeyPair(MNEMONIC);
const wallet = new tonWeb.wallet.all.v4R2(client, {
publicKey: keyPair.publicKey,
});
const dex = new DEX.v1.Router({
tonApiClient: client,
})
const swapTxParams = await dex.buildSwapTonToJettonTxParams({
offerAmount: TonWeb.utils.toNano('1'), // swap 1 TON
askJettonAddress: 'EQA2kCVNwVsil2EM2mB0SkXytxCqQjS4mttjDpnXmwG9T6bO', // for a STON
minAskAmount: TonWeb.utils.toNano('0.1'), // but not less than 0.1 STON
proxyTonAddress: pTON.v1.address.toString(),
userWalletAddress: (await wallet.getAddress()).toString(),
});
await wallet.methods.transfer({
secretKey: keyPair.secretKey,
toAddress: swapTxParams.to,
amount: swapTxParams.gasAmount,
seqno: await wallet.methods.seqno().call() ?? 0,
payload: swapTxParams.payload,
sendMode: 3,
}).send();