Apa yang Dilakukan oleh Pembekuan Akun Token?
Membekukan akun token membuat pemilik, mint, dan saldo tetap sama, tetapi mencegah akun token dari mentransfer atau membakar token hingga akun token dicairkan kembali.
Akun yang dibekukan masih dapat ditutup jika akun yang dibekukan memiliki saldo token nol.
Hanya mint yang masih memiliki otoritas pembekuan yang dapat membekukan akun token. Jika otoritas pembekuan mint dicabut, akun untuk mint tersebut tidak dapat lagi dibekukan.
Cara Membekukan Akun Token
Membekukan akun token menggunakan instruksi FreezeAccount dari Token
Program.
Instruksi FreezeAccount memverifikasi bahwa akun token termasuk dalam mint
dan bahwa penandatangan adalah otoritas pembekuan mint, kemudian mengubah status
akun token dari initialized menjadi frozen.
Akun token native tidak mendukung pembekuan.
Referensi Sumber
| Item | Deskripsi | Token Program | Token Extensions Program |
|---|---|---|---|
Mint | Status mint menyimpan otoritas pembekuan opsional yang digunakan untuk membekukan akun token. | Sumber | Sumber |
AccountState | Status akun token, termasuk Initialized dan Frozen. | Sumber | Sumber |
FreezeAccount | Instruksi yang mengubah akun token menjadi status frozen. | Sumber | Sumber |
process_toggle_freeze_account | Logika prosesor bersama untuk membekukan dan mencairkan 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,tokenProgram,TOKEN_PROGRAM_ADDRESS} from "@solana-program/token";const client = await createLocalClient().use(tokenProgram());const mint = await generateKeyPairSigner();const [tokenAccount] = await findAssociatedTokenPda({mint: mint.address,owner: client.payer.address,tokenProgram: TOKEN_PROGRAM_ADDRESS});const result = await client.token.instructions.freezeAccount({account: tokenAccount, // Token account to freeze.mint: mint.address, // Mint for the token account being frozen.owner: client.payer // Freeze authority approving this change.}).sendTransaction();const tokenAccountData = await client.token.accounts.token.fetch(tokenAccount);console.log("Mint Address:", mint.address);console.log("\nToken Account Address:", tokenAccount);console.log("Token Account:", tokenAccountData.data);console.log("\nTransaction Signature:", result.context.signature);
Web3.js
import {createAssociatedTokenAccount,freezeAccount,createMint,getAccount,mintToChecked,TOKEN_PROGRAM_ID} from "@solana/spl-token";import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";const result = await freezeAccount(connection, // Connection to the local validator.feePayer, // Account paying transaction fees.associatedTokenAccount, // Token account to freeze.mintPubkey, // Mint for the token account being frozen.feePayer, // Freeze authority approving this change.[], // Additional multisig signers.{commitment: "confirmed" // Confirmation options for the transaction.},TOKEN_PROGRAM_ID // Token program to invoke.);const tokenAccountData = await getAccount(connection,associatedTokenAccount,"confirmed",TOKEN_PROGRAM_ID);console.log("Mint Address:", mintPubkey.toBase58());console.log("\nAssociated Token Account Address:",associatedTokenAccount.toBase58());console.log("Associated Token Account:", tokenAccountData);console.log("\nTransaction Signature:", result);
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::{freeze_account, initialize_mint, mint_to_checked},state::{Account, Mint},};#[tokio::main]async fn main() -> Result<()> {let client = RpcClient::new_with_commitment(String::from("http://localhost:8899"),CommitmentConfig::confirmed(),);let transaction = Transaction::new_signed_with_payer(&[freeze_account(&token_program_id(), // Token program to invoke.&associated_token_address, // Token account to freeze.&mint.pubkey(), // Mint for the token account being frozen.&fee_payer.pubkey(), // Freeze authority approving this change.&[], // Additional multisig signers.)?,],Some(&fee_payer.pubkey()),&[&fee_payer],latest_blockhash,);let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;let token_account = client.get_account(&associated_token_address).await?;let token_data = Account::unpack(&token_account.data)?;println!("Mint Address: {}", mint.pubkey());println!("\nAssociated Token Account Address: {}",associated_token_address);println!("Associated Token Account: {:#?}", token_data);println!("\nTransaction Signature: {}", transaction_signature);Ok(())}
Python
#!/usr/bin/env python3import asyncioimport jsonfrom solana.rpc.async_api import AsyncClientfrom solders.keypair import Keypairfrom solders.message import Messagefrom solders.pubkey import Pubkeyfrom solders.system_program import create_account, CreateAccountParamsfrom solders.transaction import Transactionfrom spl.token.async_client import AsyncTokenfrom spl.token.instructions import (create_associated_token_account,freeze_account,FreezeAccountParams,get_associated_token_address,initialize_mint,InitializeMintParams,mint_to_checked,MintToCheckedParams,)from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_IDDECIMALS = 2AMOUNT_TO_MINT = 100async def main():rpc = AsyncClient("http://localhost:8899")async with rpc:freeze_account_instruction = freeze_account(FreezeAccountParams(program_id=TOKEN_PROGRAM_ID, # Token program to invoke.account=token_account_address, # Token account to freeze.mint=mint.pubkey(), # Mint for the token account being frozen.authority=fee_payer.pubkey(), # Freeze authority approving the freeze.))latest_blockhash = await rpc.get_latest_blockhash()transaction = Transaction([fee_payer],Message([freeze_account_instruction], fee_payer.pubkey()),latest_blockhash.value.blockhash,)result = await rpc.send_transaction(transaction)token_account_info = await token.get_account_info(token_account_address)token_account = {key: str(value) if isinstance(value, Pubkey) else valuefor key, value in token_account_info._asdict().items()}print("Mint Address:", mint.pubkey())print("\nToken Account Address:", token_account_address)print("Token Account:")print(json.dumps(token_account, indent=2))print("\nTransaction Signature:", result.value)if __name__ == "__main__":asyncio.run(main())
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