Dégeler un compte

Que fait le dégel d'un compte de jetons ?

Le dégel fait passer un compte de jetons de l'état gelé à l'état initialisé.

Une fois le dégel réussi, le compte peut à nouveau transférer, détruire et fermer des jetons. Seule l'autorité de gel du mint peut dégeler les comptes de jetons.

Comment dégeler un compte de jetons

Le dégel d'un compte de jetons utilise l'instruction ThawAccount du Token Program.

L'instruction ThawAccount vérifie que le compte de jetons appartient au mint et que le signataire est l'autorité de gel du mint, puis fait passer l'état du compte de jetons de gelé à initialisé.

Les comptes de jetons natifs ne prennent pas en charge le dégel.

Référence du code source

ÉlémentDescriptionToken ProgramToken Extensions Program
MintL'état du mint stocke l'autorité de gel optionnelle utilisée pour dégeler les comptes de jetons.SourceSource
AccountStateLes états du compte de jetons, y compris Frozen et Initialized.SourceSource
ThawAccountUne instruction qui fait repasser un compte de jetons gelé à l'état initialisé.SourceSource
process_toggle_freeze_accountLogique du processeur partagée pour geler et dégeler les comptes de jetons.SourceSource

Typescript

Les exemples Kit ci-dessous montrent l'approche recommandée utilisant @solana/kit. Les exemples hérités utilisant @solana/web3.js sont inclus à titre de référence.

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
.thawAccount({
account: tokenAccount, // Token account to thaw.
mint: mint.address, // Mint for the token account being thawed.
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
Click to execute the code.

Web3.js

import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";
import {
createAssociatedTokenAccount,
freezeAccount,
createMint,
getAccount,
mintToChecked,
thawAccount,
TOKEN_PROGRAM_ID
} from "@solana/spl-token";
const result = await thawAccount(
connection, // Connection to the local validator.
feePayer, // Account paying transaction fees.
associatedTokenAccount, // Token account to thaw.
mintPubkey, // Mint for the token account being thawed.
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
Click to execute the code.

Rust

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, thaw_account},
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(
&[
thaw_account(
&token_program_id(), // Token program to invoke.
&associated_token_address, // Token account to thaw.
&mint.pubkey(), // Mint for the token account being thawed.
&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!("\nToken Account Address: {}", associated_token_address);
println!("Token Account: {:#?}", token_data);
println!("\nTransaction Signature: {}", transaction_signature);
Ok(())
}
Console
Click to execute the code.

Python

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,
thaw_account,
ThawAccountParams,
)
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:
thaw_account_instruction = thaw_account(
ThawAccountParams(
program_id=TOKEN_PROGRAM_ID, # Token program to invoke.
account=token_account_address, # Token account to thaw.
mint=mint.pubkey(), # Mint for the token account being thawed.
authority=fee_payer.pubkey(), # Freeze authority approving the thaw.
)
)
latest_blockhash = await rpc.get_latest_blockhash()
transaction = Transaction(
[fee_payer],
Message([thaw_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
Click to execute the code.

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