Konten auftauen

Konten auftauen

Die ThawAccount Anweisung hebt ein Einfrieren auf und stellt die volle Funktionalität eines zuvor eingefrorenen Token-Kontos wieder her. Nach dem Auftauen kann das Konto wieder wie gewohnt Token senden und empfangen. Nur die Freeze-Autorität des Token-Mints kann Konten auftauen.

Das Token Program und das Token Extension Program verwenden ähnliche Implementierungen, um die gleiche Funktionalität zu erreichen.

Typescript

import {
airdropFactory,
appendTransactionMessageInstructions,
createSolanaRpc,
createSolanaRpcSubscriptions,
createTransactionMessage,
generateKeyPairSigner,
getSignatureFromTransaction,
lamports,
pipe,
sendAndConfirmTransactionFactory,
setTransactionMessageFeePayerSigner,
setTransactionMessageLifetimeUsingBlockhash,
signTransactionMessageWithSigners
} from "@solana/kit";
import { getCreateAccountInstruction } from "@solana-program/system";
import {
getCreateAssociatedTokenInstructionAsync,
getInitializeMintInstruction,
getMintSize,
TOKEN_PROGRAM_ADDRESS,
findAssociatedTokenPda,
getMintToInstruction,
getFreezeAccountInstruction,
getThawAccountInstruction
} from "@solana-program/token";
// Create Connection, local validator in this example
const rpc = createSolanaRpc("http://localhost:8899");
const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");
// Generate keypairs for fee payer
const feePayer = await generateKeyPairSigner();
// Fund fee payer
await airdropFactory({ rpc, rpcSubscriptions })({
recipientAddress: feePayer.address,
lamports: lamports(1_000_000_000n),
commitment: "confirmed"
});
// Generate keypair to use as address of mint
const mint = await generateKeyPairSigner();
// Get default mint account size (in bytes), no extensions enabled
const space = BigInt(getMintSize());
// Get minimum balance for rent exemption
const rent = await rpc.getMinimumBalanceForRentExemption(space).send();
// Get latest blockhash to include in transaction
const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();
// Instruction to create new account for mint (token program)
// Invokes the system program
const createAccountInstruction = getCreateAccountInstruction({
payer: feePayer,
newAccount: mint,
lamports: rent,
space,
programAddress: TOKEN_PROGRAM_ADDRESS
});
// Instruction to initialize mint account data
// Invokes the token program
const initializeMintInstruction = getInitializeMintInstruction({
mint: mint.address,
decimals: 9,
mintAuthority: feePayer.address,
freezeAuthority: feePayer.address
});
// Use findAssociatedTokenPda to derive the ATA address
const [associatedTokenAddress] = await findAssociatedTokenPda({
mint: mint.address,
owner: feePayer.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
// Create instruction to create the associated token account
const createAtaInstruction = await getCreateAssociatedTokenInstructionAsync({
payer: feePayer,
mint: mint.address,
owner: feePayer.address
});
// Create instruction to mint tokens
const mintToInstruction = getMintToInstruction({
mint: mint.address,
token: associatedTokenAddress,
mintAuthority: feePayer.address,
amount: 1000_000_000_000n // 1000.0 tokens with 9 decimals
});
// Create instruction to freeze the token account
const freezeInstruction = getFreezeAccountInstruction({
account: associatedTokenAddress,
mint: mint.address,
owner: feePayer.address
});
const instructions = [
createAccountInstruction,
initializeMintInstruction,
createAtaInstruction,
mintToInstruction,
freezeInstruction
];
// Create transaction message
const transactionMessage = pipe(
createTransactionMessage({ version: 0 }),
(tx) => setTransactionMessageFeePayerSigner(feePayer, tx),
(tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),
(tx) => appendTransactionMessageInstructions(instructions, tx)
);
// Sign transaction message with all required signers
const signedTransaction =
await signTransactionMessageWithSigners(transactionMessage);
// Send and confirm transaction
await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(
signedTransaction,
{ commitment: "confirmed" }
);
// Get transaction signature
const transactionSignature = getSignatureFromTransaction(signedTransaction);
console.log("Mint Address:", mint.address.toString());
console.log(
"Associated Token Account Address:",
associatedTokenAddress.toString()
);
console.log("Transaction Signature:", transactionSignature);
console.log("Successfully minted 1000.0 tokens and frozen the account");
// Get a fresh blockhash for the thaw transaction
const { value: thawBlockhash } = await rpc.getLatestBlockhash().send();
// Create instruction to thaw the frozen token account
const thawInstruction = getThawAccountInstruction({
account: associatedTokenAddress,
mint: mint.address,
owner: feePayer.address
});
// Create transaction message for thawing
const thawTxMessage = pipe(
createTransactionMessage({ version: 0 }),
(tx) => setTransactionMessageFeePayerSigner(feePayer, tx),
(tx) => setTransactionMessageLifetimeUsingBlockhash(thawBlockhash, tx),
(tx) => appendTransactionMessageInstructions([thawInstruction], tx)
);
// Sign transaction message with all required signers
const signedThawTx = await signTransactionMessageWithSigners(thawTxMessage);
// Send and confirm transaction
await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(
signedThawTx,
{ commitment: "confirmed" }
);
// Get transaction signature
const transactionSignature2 = getSignatureFromTransaction(signedThawTx);
console.log("Successfully thawed the frozen token account");
console.log("Transaction Signature:", transactionSignature2);
Console
Click to execute the code.

Rust

use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_sdk::{
commitment_config::CommitmentConfig,
program_pack::Pack,
signature::{Keypair, Signer},
system_instruction::create_account,
transaction::Transaction,
};
use spl_associated_token_account::{
get_associated_token_address_with_program_id, instruction::create_associated_token_account,
};
use spl_token::{
id as token_program_id,
instruction::{initialize_mint, mint_to, freeze_account, thaw_account},
state::Mint,
};
#[tokio::main]
async fn main() -> Result<()> {
// Create connection to local validator
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let latestBlockhash = client.get_latest_blockhash().await?;
// Generate a new keypair for the fee payer
let fee_payer = Keypair::new();
// Airdrop 1 SOL to fee payer
let airdrop_signature = client
.request_airdrop(&fee_payer.pubkey(), 1_000_000_000)
.await?;
client.confirm_transaction(&airdrop_signature).await?;
loop {
let confirmed = client.confirm_transaction(&airdrop_signature).await?;
if confirmed {
break;
}
}
// Generate keypair to use as address of mint
let mint = Keypair::new();
// Get default mint account size (in bytes), no extensions enabled
let mint_space = Mint::LEN;
let mint_rent = client
.get_minimum_balance_for_rent_exemption(mint_space)
.await?;
// Instruction to create new account for mint (token program)
let create_account_instruction = create_account(
&fee_payer.pubkey(), // payer
&mint.pubkey(), // new account (mint)
mint_rent, // lamports
mint_space as u64, // space
&token_program_id(), // program id
);
// Instruction to initialize mint account data
let initialize_mint_instruction = initialize_mint(
&token_program_id(),
&mint.pubkey(), // mint
&fee_payer.pubkey(), // mint authority
Some(&fee_payer.pubkey()), // freeze authority
9, // decimals
)?;
// Calculate the associated token account address for fee_payer
let associated_token_address = get_associated_token_address_with_program_id(
&fee_payer.pubkey(), // owner
&mint.pubkey(), // mint
&token_program_id(), // program_id
);
// Instruction to create associated token account
let create_ata_instruction = create_associated_token_account(
&fee_payer.pubkey(), // funding address
&fee_payer.pubkey(), // wallet address
&mint.pubkey(), // mint address
&token_program_id(), // program id
);
// Amount of tokens to mint (1000 tokens with 9 decimals)
let amount = 1000_000_000_000;
// Create mint_to instruction to mint tokens to the associated token account
let mint_to_instruction = mint_to(
&token_program_id(),
&mint.pubkey(), // mint
&associated_token_address, // destination
&fee_payer.pubkey(), // authority
&[&fee_payer.pubkey()], // signer
amount, // amount
)?;
// Create freeze account instruction
let freeze_instruction = freeze_account(
&token_program_id(), // program id
&associated_token_address, // token account to freeze
&mint.pubkey(), // mint
&fee_payer.pubkey(), // freeze authority
&[&fee_payer.pubkey()], // signers
)?;
// Create transaction and add instructions
let transaction = Transaction::new_signed_with_payer(
&[
create_account_instruction,
initialize_mint_instruction,
create_ata_instruction,
mint_to_instruction,
freeze_instruction,
],
Some(&fee_payer.pubkey()),
&[&fee_payer, &mint],
latestBlockhash,
);
// Send and confirm transaction
let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
println!("Mint Address: {}", mint.pubkey());
println!(
"Associated Token Account Address: {}",
associated_token_address
);
println!("Transaction Signature: {}", transaction_signature);
println!("Successfully minted 1000.0 tokens and frozen the account");
// Get the latest blockhash for the thaw transaction
let latestBlockhash = client.get_latest_blockhash().await?;
// Create thaw account instruction
let thaw_instruction = thaw_account(
&token_program_id(), // program id
&associated_token_address, // token account to thaw
&mint.pubkey(), // mint
&fee_payer.pubkey(), // freeze authority
&[&fee_payer.pubkey()], // signers
)?;
// Create transaction for thawing token account
let transaction = Transaction::new_signed_with_payer(
&[thaw_instruction],
Some(&fee_payer.pubkey()),
&[&fee_payer],
latestBlockhash,
);
// Send and confirm transaction
let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
println!("Successfully thawed the frozen token account");
println!("Transaction Signature: {}", transaction_signature);
Ok(())
}
Console
Click to execute the code.

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