Congelar Conta

O Que Faz o Congelamento de uma Token Account?

Congelar uma token account mantém o mesmo proprietário, mint e saldo, mas impede que a token account transfira ou queime tokens até que a token account seja descongelada.

Uma conta congelada ainda pode ser fechada se a conta congelada tiver saldo zero de tokens.

Somente um mint que ainda possui uma autoridade de congelamento pode congelar token accounts. Se a autoridade de congelamento de um mint for revogada, as contas desse mint não poderão mais ser congeladas.

Como Congelar uma Token Account

Congelar uma token account usa a instrução FreezeAccount do Token Program.

A instrução FreezeAccount verifica se a token account pertence ao mint e se o signatário é a autoridade de congelamento do mint, e então altera o estado da token account de inicializada para congelada.

Token accounts nativas não suportam congelamento.

Referência de Código-Fonte

Item	Descrição	Token Program	Token Extensions Program
`Mint`	O estado do mint armazena a autoridade de congelamento opcional usada para congelar token accounts.	Source	Source
`AccountState`	Os estados da token account, incluindo `Initialized` e `Frozen`.	Source	Source
`FreezeAccount`	Uma instrução que altera uma token account para o estado congelado.	Source	Source
`process_toggle_freeze_account`	Lógica de processamento compartilhada para congelar e descongelar token accounts.	Source	Source

Typescript

Os exemplos Kit abaixo mostram a abordagem recomendada usando @solana/kit. Exemplos legados usando @solana/web3.js são incluídos para referência.

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);

Console

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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);

Console

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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);

Console

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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);

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::{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(())
}

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::{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(())
}

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.pubkey import Pubkey
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 (
    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_ID

DECIMALS = 2
AMOUNT_TO_MINT = 100

async 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 value
            for 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())

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.pubkey import Pubkey
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 (
    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_ID

DECIMALS = 2
AMOUNT_TO_MINT = 100

async 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 value
            for 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())

Console

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