Staking

Mendapatkan Validators

Kita bisa stake SOL dan mendapatkan rewards dari membantu menjaga keamanan network. Untuk melakukan staking, kita mendelegasi SOL kepada para validator yang selanjutnya memproses transaksi.

import { clusterApiUrl, Connection } from "@solana/web3.js";

(async () => {
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");

  // Get all validators, categorized by current (i.e. active) and deliquent (i.e. inactive)
  const { current, delinquent } = await connection.getVoteAccounts();
  console.log("current validators: ", current);
  console.log("all validators: ", current.concat(delinquent));
})();

solana validators

Membuat Stake Account

Semua instruksi staking ditangani oleh Stake Program. Untuk memulai, kita membuat sebuah Stake Account yang dibuat dan dikelola secara berbeda daripada system account. Khususnya, kita harus menyetel Stake Authority dan Withdrawal Authority.

import {
  clusterApiUrl,
  Connection,
  Keypair,
  LAMPORTS_PER_SOL,
  StakeProgram,
  Authorized,
  sendAndConfirmTransaction,
  Lockup,
} from "@solana/web3.js";

(async () => {
  // Setup our connection and wallet
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
  const wallet = Keypair.generate();

  // Fund our wallet with 1 SOL
  const airdropSignature = await connection.requestAirdrop(
    wallet.publicKey,
    LAMPORTS_PER_SOL
  );
  await connection.confirmTransaction(airdropSignature);

  // Create a keypair for our stake account
  const stakeAccount = Keypair.generate();

  // Calculate how much we want to stake
  const minimumRent = await connection.getMinimumBalanceForRentExemption(
    StakeProgram.space
  );
  const amountUserWantsToStake = LAMPORTS_PER_SOL / 2; // This is can be user input. For now, we'll hardcode to 0.5 SOL
  const amountToStake = minimumRent + amountUserWantsToStake;

  // Setup a transaction to create our stake account
  // Note: `StakeProgram.createAccount` returns a `Transaction` preconfigured with the necessary `TransactionInstruction`s
  const createStakeAccountTx = StakeProgram.createAccount({
    authorized: new Authorized(wallet.publicKey, wallet.publicKey), // Here we set two authorities: Stake Authority and Withdrawal Authority. Both are set to our wallet.
    fromPubkey: wallet.publicKey,
    lamports: amountToStake,
    lockup: new Lockup(0, 0, wallet.publicKey), // Optional. We'll set this to 0 for demonstration purposes.
    stakePubkey: stakeAccount.publicKey,
  });

  const createStakeAccountTxId = await sendAndConfirmTransaction(
    connection,
    createStakeAccountTx,
    [
      wallet,
      stakeAccount, // Since we're creating a new stake account, we have that account sign as well
    ]
  );
  console.log(`Stake account created. Tx Id: ${createStakeAccountTxId}`);

  // Check our newly created stake account balance. This should be 0.5 SOL.
  let stakeBalance = await connection.getBalance(stakeAccount.publicKey);
  console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);

  // Verify the status of our stake account. This will start as inactive and will take some time to activate.
  let stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);
})();

// Setup a transaction to create our stake account
// Note: `StakeProgram.createAccount` returns a `Transaction` preconfigured with the necessary `TransactionInstruction`s
const createStakeAccountTx = StakeProgram.createAccount({
  authorized: new Authorized(wallet.publicKey, wallet.publicKey), // Here we set two authorities: Stake Authority and Withdrawal Authority. Both are set to our wallet.
  fromPubkey: wallet.publicKey,
  lamports: amountToStake,
  lockup: new Lockup(0, 0, wallet.publicKey), // Optional. We'll set this to 0 for demonstration purposes.
  stakePubkey: stakeAccount.publicKey,
});

const createStakeAccountTxId = await sendAndConfirmTransaction(
  connection,
  createStakeAccountTx,
  [
    wallet,
    stakeAccount, // Since we're creating a new stake account, we have that account sign as well
  ]
);
console.log(`Stake account created. Tx Id: ${createStakeAccountTxId}`);

// Check our newly created stake account balance. This should be 0.5 SOL.
let stakeBalance = await connection.getBalance(stakeAccount.publicKey);
console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);

// Verify the status of our stake account. This will start as inactive and will take some time to activate.
let stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
console.log(`Stake account status: ${stakeStatus.state}`);

Mendelegasi Stake

Ketika sebuah stake account sudah didanai, Stake Authority dapat mendelegasinya kepada validator. Setiap stake account hanya bisa didelegasikan kepada 1 validator di suatu waktu. Selain itu, semua token di dalam account harus antara didelegasikan atau tidak didelegasikan. Ketika sudah didelegasi, dibutuhkan beberapa epoch untuk stake account menjadi aktif.

import {
  clusterApiUrl,
  Connection,
  Keypair,
  LAMPORTS_PER_SOL,
  StakeProgram,
  Authorized,
  sendAndConfirmTransaction,
  Lockup,
  PublicKey,
} from "@solana/web3.js";

(async () => {
  // Setup our connection and wallet
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
  const wallet = Keypair.generate();

  // Fund our wallet with 1 SOL
  const airdropSignature = await connection.requestAirdrop(
    wallet.publicKey,
    LAMPORTS_PER_SOL
  );
  await connection.confirmTransaction(airdropSignature);

  // Create a keypair for our stake account
  const stakeAccount = Keypair.generate();

  // Calculate how much we want to stake
  const minimumRent = await connection.getMinimumBalanceForRentExemption(
    StakeProgram.space
  );
  const amountUserWantsToStake = LAMPORTS_PER_SOL / 2; // This is can be user input. For now, we'll hardcode to 0.5 SOL
  const amountToStake = minimumRent + amountUserWantsToStake;

  // Setup a transaction to create our stake account
  // Note: `StakeProgram.createAccount` returns a `Transaction` preconfigured with the necessary `TransactionInstruction`s
  const createStakeAccountTx = StakeProgram.createAccount({
    authorized: new Authorized(wallet.publicKey, wallet.publicKey), // Here we set two authorities: Stake Authority and Withdrawal Authority. Both are set to our wallet.
    fromPubkey: wallet.publicKey,
    lamports: amountToStake,
    lockup: new Lockup(0, 0, wallet.publicKey), // Optional. We'll set this to 0 for demonstration purposes.
    stakePubkey: stakeAccount.publicKey,
  });

  const createStakeAccountTxId = await sendAndConfirmTransaction(
    connection,
    createStakeAccountTx,
    [
      wallet,
      stakeAccount, // Since we're creating a new stake account, we have that account sign as well
    ]
  );
  console.log(`Stake account created. Tx Id: ${createStakeAccountTxId}`);

  // Check our newly created stake account balance. This should be 0.5 SOL.
  let stakeBalance = await connection.getBalance(stakeAccount.publicKey);
  console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);

  // Verify the status of our stake account. This will start as inactive and will take some time to activate.
  let stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // To delegate our stake, we first have to select a validator. Here we get all validators and select the first active one.
  const validators = await connection.getVoteAccounts();
  const selectedValidator = validators.current[0];
  const selectedValidatorPubkey = new PublicKey(selectedValidator.votePubkey);

  // With a validator selected, we can now setup a transaction that delegates our stake to their vote account.
  const delegateTx = StakeProgram.delegate({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
    votePubkey: selectedValidatorPubkey,
  });

  const delegateTxId = await sendAndConfirmTransaction(connection, delegateTx, [
    wallet,
  ]);
  console.log(
    `Stake account delegated to ${selectedValidatorPubkey}. Tx Id: ${delegateTxId}`
  );

  // Check in on our stake account. It should now be activating.
  stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);
})();

// With a validator selected, we can now setup a transaction that delegates our stake to their vote account.
const delegateTx = StakeProgram.delegate({
  stakePubkey: stakeAccount.publicKey,
  authorizedPubkey: wallet.publicKey,
  votePubkey: selectedValidatorPubkey,
});

const delegateTxId = await sendAndConfirmTransaction(connection, delegateTx, [
  wallet,
]);
console.log(
  `Stake account delegated to ${selectedValidatorPubkey}. Tx Id: ${delegateTxId}`
);

// Check in on our stake account. It should now be activating.
stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
console.log(`Stake account status: ${stakeStatus.state}`);

Mendapatkan Delegator dengan Validator

Beberapa account mungkin telah stake ke validator account tertentu. Untuk mengambil para staker, kita akan menggunakan getProgramAccounts atau getParsedProgramAccounts API. Untuk informasi lebih, cek guides section. Stake account berukuran 200 bytes dan Voter Public Key dimulai dari 124 bytes. Reference

import { clusterApiUrl, Connection, PublicKey } from "@solana/web3.js";

(async () => {
  const STAKE_PROGRAM_ID = new PublicKey(
    "Stake11111111111111111111111111111111111111"
  );
  const VOTE_PUB_KEY = "27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x";

  const connection = new Connection(clusterApiUrl("mainnet-beta"), "confirmed");
  const accounts = await connection.getParsedProgramAccounts(STAKE_PROGRAM_ID, {
    filters: [
      {
        dataSize: 200, // number of bytes
      },
      {
        memcmp: {
          offset: 124, // number of bytes
          bytes: VOTE_PUB_KEY, // base58 encoded string
        },
      },
    ],
  });

  console.log(`Accounts for program ${STAKE_PROGRAM_ID}: `);
  console.log(
    `Total number of delegators found for ${VOTE_PUB_KEY} is: ${accounts.length}`
  );
  if (accounts.length)
    console.log(`Sample delegator:`, JSON.stringify(accounts[0]));

  /*
  // Output

    Accounts for program Stake11111111111111111111111111111111111111: 
    Total number of delegators found for 27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x is: 184
    Sample delegator: 
    {
      "account": {
        "data": {
          "parsed": {
            "info": {
              "meta": {
                "authorized": {
                  "staker": "3VDVh3rHTLkNJp6FVYbuFcaihYBFCQX5VSBZk23ckDGV",
                  "withdrawer": "EhYXq3ANp5nAerUpbSgd7VK2RRcxK1zNuSQ755G5Mtxx"
                },
                "lockup": {
                  "custodian": "3XdBZcURF5nKg3oTZAcfQZg8XEc5eKsx6vK8r3BdGGxg",
                  "epoch": 0,
                  "unixTimestamp": 1822867200
                },
                "rentExemptReserve": "2282880"
              },
              "stake": {
                "creditsObserved": 58685367,
                "delegation": {
                  "activationEpoch": "208",
                  "deactivationEpoch": "18446744073709551615",
                  "stake": "433005300621",
                  "voter": "27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x",
                  "warmupCooldownRate": 0.25
                }
              }
            },
            "type": "delegated"
          },
          "program": "stake",
          "space": 200
        },
        "executable": false,
        "lamports": 433012149261,
        "owner": {
          "_bn": "06a1d8179137542a983437bdfe2a7ab2557f535c8a78722b68a49dc000000000"
        },
        "rentEpoch": 264
      },
      "pubkey": {
        "_bn": "0dc8b506f95e52c9ac725e714c7078799dd3268df562161411fe0916a4dc0a43"
      }
    }

  */
})();

const STAKE_PROGRAM_ID = new PublicKey(
  "Stake11111111111111111111111111111111111111"
);
const VOTE_PUB_KEY = "27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x";

const connection = new Connection(clusterApiUrl("mainnet-beta"), "confirmed");
const accounts = await connection.getParsedProgramAccounts(STAKE_PROGRAM_ID, {
  filters: [
    {
      dataSize: 200, // number of bytes
    },
    {
      memcmp: {
        offset: 124, // number of bytes
        bytes: VOTE_PUB_KEY, // base58 encoded string
      },
    },
  ],
});

console.log(`Accounts for program ${STAKE_PROGRAM_ID}: `);
console.log(
  `Total number of delegators found for ${VOTE_PUB_KEY} is: ${accounts.length}`
);
if (accounts.length)
  console.log(`Sample delegator:`, JSON.stringify(accounts[0]));

/*
// Output

  Accounts for program Stake11111111111111111111111111111111111111: 
  Total number of delegators found for 27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x is: 184
  Sample delegator: 
  {
    "account": {
      "data": {
        "parsed": {
          "info": {
            "meta": {
              "authorized": {
                "staker": "3VDVh3rHTLkNJp6FVYbuFcaihYBFCQX5VSBZk23ckDGV",
                "withdrawer": "EhYXq3ANp5nAerUpbSgd7VK2RRcxK1zNuSQ755G5Mtxx"
              },
              "lockup": {
                "custodian": "3XdBZcURF5nKg3oTZAcfQZg8XEc5eKsx6vK8r3BdGGxg",
                "epoch": 0,
                "unixTimestamp": 1822867200
              },
              "rentExemptReserve": "2282880"
            },
            "stake": {
              "creditsObserved": 58685367,
              "delegation": {
                "activationEpoch": "208",
                "deactivationEpoch": "18446744073709551615",
                "stake": "433005300621",
                "voter": "27MtjMSAQ2BGkXNuJEJkxFyCJT8dugGAaHJ9T7Gc6x4x",
                "warmupCooldownRate": 0.25
              }
            }
          },
          "type": "delegated"
        },
        "program": "stake",
        "space": 200
      },
      "executable": false,
      "lamports": 433012149261,
      "owner": {
        "_bn": "06a1d8179137542a983437bdfe2a7ab2557f535c8a78722b68a49dc000000000"
      },
      "rentEpoch": 264
    },
    "pubkey": {
      "_bn": "0dc8b506f95e52c9ac725e714c7078799dd3268df562161411fe0916a4dc0a43"
    }
  }
  
*/

Deactivate Stake

Kapan pun setelah suatu stake account didelegasi, Stake Authority bisa memilih untuk deactivate account. Deactivation bisa memakan waktu yang cukup lama, dan dibutuhkan sebelum SOL bisa di-withdraw.

import {
  clusterApiUrl,
  Connection,
  Keypair,
  LAMPORTS_PER_SOL,
  StakeProgram,
  Authorized,
  sendAndConfirmTransaction,
  Lockup,
  PublicKey,
} from "@solana/web3.js";

(async () => {
  // Setup our connection and wallet
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
  const wallet = Keypair.generate();

  // Fund our wallet with 1 SOL
  const airdropSignature = await connection.requestAirdrop(
    wallet.publicKey,
    LAMPORTS_PER_SOL
  );
  await connection.confirmTransaction(airdropSignature);

  // Create a keypair for our stake account
  const stakeAccount = Keypair.generate();

  // Calculate how much we want to stake
  const minimumRent = await connection.getMinimumBalanceForRentExemption(
    StakeProgram.space
  );
  const amountUserWantsToStake = LAMPORTS_PER_SOL / 2; // This is can be user input. For now, we'll hardcode to 0.5 SOL
  const amountToStake = minimumRent + amountUserWantsToStake;

  // Setup a transaction to create our stake account
  // Note: `StakeProgram.createAccount` returns a `Transaction` preconfigured with the necessary `TransactionInstruction`s
  const createStakeAccountTx = StakeProgram.createAccount({
    authorized: new Authorized(wallet.publicKey, wallet.publicKey), // Here we set two authorities: Stake Authority and Withdrawal Authority. Both are set to our wallet.
    fromPubkey: wallet.publicKey,
    lamports: amountToStake,
    lockup: new Lockup(0, 0, wallet.publicKey), // Optional. We'll set this to 0 for demonstration purposes.
    stakePubkey: stakeAccount.publicKey,
  });

  const createStakeAccountTxId = await sendAndConfirmTransaction(
    connection,
    createStakeAccountTx,
    [
      wallet,
      stakeAccount, // Since we're creating a new stake account, we have that account sign as well
    ]
  );
  console.log(`Stake account created. Tx Id: ${createStakeAccountTxId}`);

  // Check our newly created stake account balance. This should be 0.5 SOL.
  let stakeBalance = await connection.getBalance(stakeAccount.publicKey);
  console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);

  // Verify the status of our stake account. This will start as inactive and will take some time to activate.
  let stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // To delegate our stake, we first have to select a validator. Here we get all validators and select the first active one.
  const validators = await connection.getVoteAccounts();
  const selectedValidator = validators.current[0];
  const selectedValidatorPubkey = new PublicKey(selectedValidator.votePubkey);

  // With a validator selected, we can now setup a transaction that delegates our stake to their vote account.
  const delegateTx = StakeProgram.delegate({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
    votePubkey: selectedValidatorPubkey,
  });

  const delegateTxId = await sendAndConfirmTransaction(connection, delegateTx, [
    wallet,
  ]);
  console.log(
    `Stake account delegated to ${selectedValidatorPubkey}. Tx Id: ${delegateTxId}`
  );

  // Check in on our stake account. It should now be activating.
  stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // At anytime we can choose to deactivate our stake. Our stake account must be inactive before we can withdraw funds.
  const deactivateTx = StakeProgram.deactivate({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
  });
  const deactivateTxId = await sendAndConfirmTransaction(
    connection,
    deactivateTx,
    [wallet]
  );
  console.log(`Stake account deactivated. Tx Id: ${deactivateTxId}`);

  // Check in on our stake account. It should now be inactive.
  stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);
})();

// At anytime we can choose to deactivate our stake. Our stake account must be inactive before we can withdraw funds.
const deactivateTx = StakeProgram.deactivate({
  stakePubkey: stakeAccount.publicKey,
  authorizedPubkey: wallet.publicKey,
});
const deactivateTxId = await sendAndConfirmTransaction(
  connection,
  deactivateTx,
  [wallet]
);
console.log(`Stake account deactivated. Tx Id: ${deactivateTxId}`);

// Check in on our stake account. It should now be inactive.
stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
console.log(`Stake account status: ${stakeStatus.state}`);

Withdraw Stake

Ketika account sudah di-deactivate, Withdrawal Authority bisa withdraw SOL kembali ke system account. Saat sebuah stake account sudah tidak didelegasi dan memiliki saldo 0 SOL, account tersebut akan dihancurkan.

import {
  clusterApiUrl,
  Connection,
  Keypair,
  LAMPORTS_PER_SOL,
  StakeProgram,
  Authorized,
  sendAndConfirmTransaction,
  Lockup,
  PublicKey,
} from "@solana/web3.js";

(async () => {
  // Setup our connection and wallet
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
  const wallet = Keypair.generate();

  // Fund our wallet with 1 SOL
  const airdropSignature = await connection.requestAirdrop(
    wallet.publicKey,
    LAMPORTS_PER_SOL
  );
  await connection.confirmTransaction(airdropSignature);

  // Create a keypair for our stake account
  const stakeAccount = Keypair.generate();

  // Calculate how much we want to stake
  const minimumRent = await connection.getMinimumBalanceForRentExemption(
    StakeProgram.space
  );
  const amountUserWantsToStake = LAMPORTS_PER_SOL / 2; // This is can be user input. For now, we'll hardcode to 0.5 SOL
  const amountToStake = minimumRent + amountUserWantsToStake;

  // Setup a transaction to create our stake account
  // Note: `StakeProgram.createAccount` returns a `Transaction` preconfigured with the necessary `TransactionInstruction`s
  const createStakeAccountTx = StakeProgram.createAccount({
    authorized: new Authorized(wallet.publicKey, wallet.publicKey), // Here we set two authorities: Stake Authority and Withdrawal Authority. Both are set to our wallet.
    fromPubkey: wallet.publicKey,
    lamports: amountToStake,
    lockup: new Lockup(0, 0, wallet.publicKey), // Optional. We'll set this to 0 for demonstration purposes.
    stakePubkey: stakeAccount.publicKey,
  });

  const createStakeAccountTxId = await sendAndConfirmTransaction(
    connection,
    createStakeAccountTx,
    [
      wallet,
      stakeAccount, // Since we're creating a new stake account, we have that account sign as well
    ]
  );
  console.log(`Stake account created. Tx Id: ${createStakeAccountTxId}`);

  // Check our newly created stake account balance. This should be 0.5 SOL.
  let stakeBalance = await connection.getBalance(stakeAccount.publicKey);
  console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);

  // Verify the status of our stake account. This will start as inactive and will take some time to activate.
  let stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // To delegate our stake, we first have to select a validator. Here we get all validators and select the first active one.
  const validators = await connection.getVoteAccounts();
  const selectedValidator = validators.current[0];
  const selectedValidatorPubkey = new PublicKey(selectedValidator.votePubkey);

  // With a validator selected, we can now setup a transaction that delegates our stake to their vote account.
  const delegateTx = StakeProgram.delegate({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
    votePubkey: selectedValidatorPubkey,
  });

  const delegateTxId = await sendAndConfirmTransaction(connection, delegateTx, [
    wallet,
  ]);
  console.log(
    `Stake account delegated to ${selectedValidatorPubkey}. Tx Id: ${delegateTxId}`
  );

  // Check in on our stake account. It should now be activating.
  stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // At anytime we can choose to deactivate our stake. Our stake account must be inactive before we can withdraw funds.
  const deactivateTx = StakeProgram.deactivate({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
  });
  const deactivateTxId = await sendAndConfirmTransaction(
    connection,
    deactivateTx,
    [wallet]
  );
  console.log(`Stake account deactivated. Tx Id: ${deactivateTxId}`);

  // Check in on our stake account. It should now be inactive.
  stakeStatus = await connection.getStakeActivation(stakeAccount.publicKey);
  console.log(`Stake account status: ${stakeStatus.state}`);

  // Once deactivated, we can withdraw our SOL back to our main wallet
  const withdrawTx = StakeProgram.withdraw({
    stakePubkey: stakeAccount.publicKey,
    authorizedPubkey: wallet.publicKey,
    toPubkey: wallet.publicKey,
    lamports: stakeBalance, // Withdraw the full balance at the time of the transaction
  });

  const withdrawTxId = await sendAndConfirmTransaction(connection, withdrawTx, [
    wallet,
  ]);
  console.log(`Stake account withdrawn. Tx Id: ${withdrawTxId}`);

  // Confirm that our stake account balance is now 0
  stakeBalance = await connection.getBalance(stakeAccount.publicKey);
  console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);
})();

// Once deactivated, we can withdraw our SOL back to our main wallet
const withdrawTx = StakeProgram.withdraw({
  stakePubkey: stakeAccount.publicKey,
  authorizedPubkey: wallet.publicKey,
  toPubkey: wallet.publicKey,
  lamports: stakeBalance, // Withdraw the full balance at the time of the transaction
});

const withdrawTxId = await sendAndConfirmTransaction(connection, withdrawTx, [
  wallet,
]);
console.log(`Stake account withdrawn. Tx Id: ${withdrawTxId}`);

// Confirm that our stake account balance is now 0
stakeBalance = await connection.getBalance(stakeAccount.publicKey);
console.log(`Stake account balance: ${stakeBalance / LAMPORTS_PER_SOL} SOL`);