Menutup Akun Token

Apa yang Dilakukan Menutup Akun Token?

Menutup akun token akan menghapus akun tersebut dan mengembalikan lamport rent akun token ke akun tujuan.

Saldo token harus nol sebelum akun dapat ditutup. Akun yang dibekukan masih dapat ditutup jika saldo token akun yang dibekukan adalah nol. Akun token Wrapped SOL adalah pengecualian dan dapat ditutup dengan saldo token untuk mengklaim kembali SOL yang mendasarinya. Pemilik akun atau close authority akun menandatangani instruksi penutupan.

Cara Menutup Akun Token

Menutup akun token menggunakan instruksi CloseAccount dari Token Program.

Instruksi CloseAccount mentransfer lamport akun sumber ke akun tujuan, menghapus data akun sumber, dan menghapus akun sumber. Token Extension Program menerapkan pemeriksaan penutupan tambahan untuk ekstensi tertentu, tetapi alur penutupan dasar tetap sama.

Referensi Sumber

Item	Deskripsi	Token Program	Token Extension Program
`Account`	State akun token menyimpan saldo, status native, dan close authority yang digunakan saat penutupan akun.	Sumber	Sumber
`CloseAccount`	Instruksi yang menutup akun token dan mentransfer lamport akun token ke akun tujuan.	Sumber	Sumber
`process_close_account`	Logika prosesor bersama untuk penutupan akun token.	Sumber	Sumber

Typescript

Contoh Kit di bawah ini menunjukkan pendekatan yang direkomendasikan menggunakan @solana/kit. Contoh lama menggunakan @solana/web3.js disertakan sebagai referensi.

Kit

import { generateKeyPairSigner } from "@solana/kit";
import { createLocalClient } from "@solana/kit-client-rpc";
import {
  findAssociatedTokenPda,
  getCreateAssociatedTokenInstructionAsync,
  tokenProgram,
  TOKEN_PROGRAM_ADDRESS
} from "@solana-program/token";

const client = await createLocalClient()
  .use(tokenProgram());

const mint = await generateKeyPairSigner();
const destination = client.payer.address;

const [tokenAccount] = await findAssociatedTokenPda({
  mint: mint.address,
  owner: client.payer.address,
  tokenProgram: TOKEN_PROGRAM_ADDRESS
});


const result = await client.token.instructions
  .closeAccount({
    account: tokenAccount, // Token account to close.
    destination, // Account receiving the reclaimed SOL.
    owner: client.payer // Owner approving the account closure.
  })
  .sendTransaction();

const tokenAccountData =
  await client.token.accounts.token.fetchMaybe(tokenAccount);

console.log("Mint Address:", mint.address);
console.log("\nToken Account Address:", tokenAccount);
console.log("Token Account:", tokenAccountData);
console.log("\nDestination Address:", destination);
console.log("\nTransaction Signature:", result.context.signature);

Console

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import { generateKeyPairSigner } from "@solana/kit";
import { createLocalClient } from "@solana/kit-client-rpc";
import {
  findAssociatedTokenPda,
  getCreateAssociatedTokenInstructionAsync,
  tokenProgram,
  TOKEN_PROGRAM_ADDRESS
} from "@solana-program/token";

const client = await createLocalClient()
  .use(tokenProgram());

const mint = await generateKeyPairSigner();
const destination = client.payer.address;

const [tokenAccount] = await findAssociatedTokenPda({
  mint: mint.address,
  owner: client.payer.address,
  tokenProgram: TOKEN_PROGRAM_ADDRESS
});


const result = await client.token.instructions
  .closeAccount({
    account: tokenAccount, // Token account to close.
    destination, // Account receiving the reclaimed SOL.
    owner: client.payer // Owner approving the account closure.
  })
  .sendTransaction();

const tokenAccountData =
  await client.token.accounts.token.fetchMaybe(tokenAccount);

console.log("Mint Address:", mint.address);
console.log("\nToken Account Address:", tokenAccount);
console.log("Token Account:", tokenAccountData);
console.log("\nDestination Address:", destination);
console.log("\nTransaction Signature:", result.context.signature);

Console

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Web3.js

import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";
import {
  createAssociatedTokenAccount,
  closeAccount,
  createMint,
  TOKEN_PROGRAM_ID
} from "@solana/spl-token";


const result = await closeAccount(
  connection, // Connection to the local validator.
  feePayer, // Account paying transaction fees.
  associatedTokenAccount, // Token account to close.
  destination, // Account receiving the reclaimed SOL.
  feePayer, // Owner approving the account closure.
  [], // Additional multisig signers.
  {
    commitment: "confirmed" // Confirmation options for the transaction.
  },
  TOKEN_PROGRAM_ID // Token program to invoke.
);

const tokenAccountData = await connection.getAccountInfo(
  associatedTokenAccount,
  "confirmed"
);

console.log("Mint Address:", mintPubkey.toBase58());
console.log(
  "\nAssociated Token Account Address:",
  associatedTokenAccount.toBase58()
);
console.log("Associated Token Account:", tokenAccountData);
console.log("\nDestination Address:", destination.toBase58());
console.log("\nTransaction Signature:", result);

Console

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import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";
import {
  createAssociatedTokenAccount,
  closeAccount,
  createMint,
  TOKEN_PROGRAM_ID
} from "@solana/spl-token";


const result = await closeAccount(
  connection, // Connection to the local validator.
  feePayer, // Account paying transaction fees.
  associatedTokenAccount, // Token account to close.
  destination, // Account receiving the reclaimed SOL.
  feePayer, // Owner approving the account closure.
  [], // Additional multisig signers.
  {
    commitment: "confirmed" // Confirmation options for the transaction.
  },
  TOKEN_PROGRAM_ID // Token program to invoke.
);

const tokenAccountData = await connection.getAccountInfo(
  associatedTokenAccount,
  "confirmed"
);

console.log("Mint Address:", mintPubkey.toBase58());
console.log(
  "\nAssociated Token Account Address:",
  associatedTokenAccount.toBase58()
);
console.log("Associated Token Account:", tokenAccountData);
console.log("\nDestination Address:", destination.toBase58());
console.log("\nTransaction Signature:", result);

Console

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Rust

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;
use solana_sdk::{
    program_pack::Pack,
    signature::{Keypair, Signer},
    transaction::Transaction,
};
use solana_system_interface::instruction::create_account;
use spl_associated_token_account_interface::{
    address::get_associated_token_address, instruction::create_associated_token_account,
};
use spl_token_interface::{
    id as token_program_id,
    instruction::{close_account, initialize_mint},
    state::{Account, Mint},
};

#[tokio::main]
async fn main() -> Result<()> {
    let client = RpcClient::new_with_commitment(
        String::from("http://localhost:8899"),
        CommitmentConfig::confirmed(),
    );


    let associated_token_address = get_associated_token_address(&fee_payer.pubkey(), &mint.pubkey());
    let destination = fee_payer.pubkey();
    let transaction = Transaction::new_signed_with_payer(
        &[
            close_account(
                &token_program_id(), // Token program to invoke.
                &associated_token_address, // Token account to close.
                &destination, // Account receiving the reclaimed SOL.
                &fee_payer.pubkey(), // Owner approving the account closure.
                &[], // Additional multisig signers.
            )?,
        ],
        Some(&fee_payer.pubkey()),
        &[&fee_payer],
        latest_blockhash,
    );

    let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
    let token_data = match client.get_account(&associated_token_address).await {
        Ok(account) => Some(Account::unpack(&account.data)?),
        Err(_) => None,
    };

    println!("Mint Address: {}", mint.pubkey());
    println!(
        "\nAssociated Token Account Address: {}",
        associated_token_address
    );
    println!("Associated Token Account: {:#?}", token_data);
    println!("\nDestination Address: {}", destination);
    println!("\nTransaction Signature: {}", transaction_signature);

    Ok(())
}

Console

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Rust

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;
use solana_sdk::{
    program_pack::Pack,
    signature::{Keypair, Signer},
    transaction::Transaction,
};
use solana_system_interface::instruction::create_account;
use spl_associated_token_account_interface::{
    address::get_associated_token_address, instruction::create_associated_token_account,
};
use spl_token_interface::{
    id as token_program_id,
    instruction::{close_account, initialize_mint},
    state::{Account, Mint},
};

#[tokio::main]
async fn main() -> Result<()> {
    let client = RpcClient::new_with_commitment(
        String::from("http://localhost:8899"),
        CommitmentConfig::confirmed(),
    );


    let associated_token_address = get_associated_token_address(&fee_payer.pubkey(), &mint.pubkey());
    let destination = fee_payer.pubkey();
    let transaction = Transaction::new_signed_with_payer(
        &[
            close_account(
                &token_program_id(), // Token program to invoke.
                &associated_token_address, // Token account to close.
                &destination, // Account receiving the reclaimed SOL.
                &fee_payer.pubkey(), // Owner approving the account closure.
                &[], // Additional multisig signers.
            )?,
        ],
        Some(&fee_payer.pubkey()),
        &[&fee_payer],
        latest_blockhash,
    );

    let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
    let token_data = match client.get_account(&associated_token_address).await {
        Ok(account) => Some(Account::unpack(&account.data)?),
        Err(_) => None,
    };

    println!("Mint Address: {}", mint.pubkey());
    println!(
        "\nAssociated Token Account Address: {}",
        associated_token_address
    );
    println!("Associated Token Account: {:#?}", token_data);
    println!("\nDestination Address: {}", destination);
    println!("\nTransaction Signature: {}", transaction_signature);

    Ok(())
}

Console

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Python

#!/usr/bin/env python3

import asyncio
import json
from solana.rpc.async_api import AsyncClient
from solders.keypair import Keypair
from solders.message import Message
from solders.system_program import create_account, CreateAccountParams
from solders.transaction import Transaction
from spl.token.async_client import AsyncToken
from spl.token.instructions import (
    close_account,
    CloseAccountParams,
    create_associated_token_account,
    get_associated_token_address,
    initialize_mint,
    InitializeMintParams,
)
from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_ID

async def main():
    rpc = AsyncClient("http://localhost:8899")

    async with rpc:

        close_account_instruction = close_account(
            CloseAccountParams(
                program_id=TOKEN_PROGRAM_ID,  # Token program to invoke.
                account=token_account_address,  # Token account to close.
                dest=fee_payer.pubkey(),  # Account receiving the reclaimed lamports.
                owner=fee_payer.pubkey(),  # Account allowed to close the token account.
            )
        )
        latest_blockhash = await rpc.get_latest_blockhash()
        transaction = Transaction(
            [fee_payer],
            Message([close_account_instruction], fee_payer.pubkey()),
            latest_blockhash.value.blockhash,
        )
        result = await rpc.send_transaction(transaction)

        closed_token_account = (await rpc.get_account_info(token_account_address)).value

        print("Mint Address:", mint.pubkey())
        print("\nToken Account Address:", token_account_address)
        print("Token Account:")
        print(json.dumps(closed_token_account, indent=2))
        print("\nTransaction Signature:", result.value)

if __name__ == "__main__":
    asyncio.run(main())

Console

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Python

#!/usr/bin/env python3

import asyncio
import json
from solana.rpc.async_api import AsyncClient
from solders.keypair import Keypair
from solders.message import Message
from solders.system_program import create_account, CreateAccountParams
from solders.transaction import Transaction
from spl.token.async_client import AsyncToken
from spl.token.instructions import (
    close_account,
    CloseAccountParams,
    create_associated_token_account,
    get_associated_token_address,
    initialize_mint,
    InitializeMintParams,
)
from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_ID

async def main():
    rpc = AsyncClient("http://localhost:8899")

    async with rpc:

        close_account_instruction = close_account(
            CloseAccountParams(
                program_id=TOKEN_PROGRAM_ID,  # Token program to invoke.
                account=token_account_address,  # Token account to close.
                dest=fee_payer.pubkey(),  # Account receiving the reclaimed lamports.
                owner=fee_payer.pubkey(),  # Account allowed to close the token account.
            )
        )
        latest_blockhash = await rpc.get_latest_blockhash()
        transaction = Transaction(
            [fee_payer],
            Message([close_account_instruction], fee_payer.pubkey()),
            latest_blockhash.value.blockhash,
        )
        result = await rpc.send_transaction(transaction)

        closed_token_account = (await rpc.get_account_info(token_account_address)).value

        print("Mint Address:", mint.pubkey())
        print("\nToken Account Address:", token_account_address)
        print("Token Account:")
        print(json.dumps(closed_token_account, indent=2))
        print("\nTransaction Signature:", result.value)

if __name__ == "__main__":
    asyncio.run(main())

Console

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