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Burn liquidity tokens

This section describes how to burn liquidity tokens to free liquidity from a pool
Free liquidity by buring liquidity pool tokens.
import TonWeb from 'tonweb';
import { Router, ROUTER_REVISION, ROUTER_REVISION_ADDRESS } from '@ston-fi/sdk';
* This example shows how to burn LP tokens and get back your liquidity
(async () => {
const WALLET_ADDRESS = ''; // ! replace with your address
const JETTON0 = 'EQA2kCVNwVsil2EM2mB0SkXytxCqQjS4mttjDpnXmwG9T6bO'; // STON
const JETTON1 = 'EQBynBO23ywHy_CgarY9NK9FTz0yDsG82PtcbSTQgGoXwiuA'; // jUSDT
const provider = new TonWeb.HttpProvider();
const router = new Router(provider, {
const pool = await router.getPool({
jettonAddresses: [JETTON0, JETTON1],
if (!pool) {
throw Error(`Pool for ${JETTON0}/${JETTON1} not found`);
const lpTokenWallet = await pool.getJettonWallet({
ownerAddress: WALLET_ADDRESS,
const lpTokenWalletData = await lpTokenWallet.getData();
// transaction to burn all LP tokens
const burnTxParams = await pool.buildBurnTxParams({
// amount of LP tokens to burn
amount: lpTokenWalletData.balance, // all LP tokens
// address to receive the liquidity
responseAddress: WALLET_ADDRESS,
// query id to identify your transaction in the blockchain (optional)
queryId: 12345,
// to execute the transaction you need to send transaction to the blockchain
// (replace with your wallet implementation, logging is used for demonstration purposes)
amount: burnTxParams.gasAmount,
payload: burnTxParams.payload,