Standardzustand
Wie man die DefaultAccountStateExtension aktiviert
Die
DefaultAccountStateExtension
setzt einen Standardzustand für alle neuen token account, die für eine Prägung
erstellt werden. Wenn aktiviert, initialisiert diese Erweiterung automatisch
jedes neue token account mit einem festgelegten Zustand, wie zum Beispiel
eingefroren. Dies ermöglicht Token-Erstellern, bestimmte Verhaltensweisen
durchzusetzen, wie zum Beispiel die Anforderung, dass alle neuen Konten
standardmäßig eingefroren sind, bis sie explizit entsperrt werden.
Typescript
import { getCreateAccountInstruction } from "@solana-program/system";import {AccountState,extension,getInitializeAccountInstruction,getInitializeDefaultAccountStateInstruction,getInitializeMintInstruction,getMintSize,getTokenSize,TOKEN_2022_PROGRAM_ADDRESS} from "@solana-program/token-2022";import {airdropFactory,appendTransactionMessageInstructions,createSolanaRpc,createSolanaRpcSubscriptions,createTransactionMessage,generateKeyPairSigner,getSignatureFromTransaction,lamports,pipe,sendAndConfirmTransactionFactory,setTransactionMessageFeePayerSigner,setTransactionMessageLifetimeUsingBlockhash,signTransactionMessageWithSigners} from "@solana/kit";// Create Connection, local validator in this exampleconst rpc = createSolanaRpc("http://localhost:8899");const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");// Generate the authority for the mint (also acts as fee payer)const authority = await generateKeyPairSigner();// Fund authority/fee payerawait airdropFactory({ rpc, rpcSubscriptions })({recipientAddress: authority.address,lamports: lamports(5_000_000_000n), // 5 SOLcommitment: "confirmed"});// Generate keypair to use as address of mintconst mint = await generateKeyPairSigner();// default account state extensionconst defaultAccountStateExtension = extension("DefaultAccountState", {state: AccountState.Frozen});// Get default mint account size (in bytes), default account state enabledconst space = BigInt(getMintSize([defaultAccountStateExtension]));// Get minimum balance for rent exemptionconst rent = await rpc.getMinimumBalanceForRentExemption(space).send();// Get latest blockhash to include in transactionconst { value: latestBlockhash } = await rpc.getLatestBlockhash().send();// Instruction to create new account for mint (token program)// Invokes the system programconst createMintAccountInstruction = getCreateAccountInstruction({payer: authority,newAccount: mint,lamports: rent,space,programAddress: TOKEN_2022_PROGRAM_ADDRESS});// Generate keypair to use as address of token accountconst tokenAccount = await generateKeyPairSigner();// get token account size with extension enabledconst tokenAccountLen = BigInt(getTokenSize([defaultAccountStateExtension]));// Get minimum balance for rent exemptionconst tokenAccountRent = await rpc.getMinimumBalanceForRentExemption(tokenAccountLen).send();// Instruction to create new account for the token account// Invokes the system programconst createTokenAccountInstruction = getCreateAccountInstruction({payer: authority,newAccount: tokenAccount,lamports: tokenAccountRent,space: tokenAccountLen,programAddress: TOKEN_2022_PROGRAM_ADDRESS});// Instruction to initialize the created token accountconst initializeTokenAccountInstruction = getInitializeAccountInstruction({account: tokenAccount.address,mint: mint.address,owner: authority.address});// Instruction to initialize account with default account state (frozen)let initializeDefaultAccountState = getInitializeDefaultAccountStateInstruction({mint: mint.address,state: AccountState.Frozen});// Instruction to initialize mint account data// Invokes the token22 programconst initializeMintInstruction = getInitializeMintInstruction({mint: mint.address,decimals: 9,mintAuthority: authority.address,freezeAuthority: authority.address});const instructions = [createMintAccountInstruction,initializeDefaultAccountState,initializeMintInstruction,createTokenAccountInstruction,initializeTokenAccountInstruction];// Create transaction messageconst transactionMessage = pipe(createTransactionMessage({ version: 0 }),(tx) => setTransactionMessageFeePayerSigner(authority, tx),(tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),(tx) => appendTransactionMessageInstructions(instructions, tx));// Sign transaction message with all required signersconst signedTransaction =await signTransactionMessageWithSigners(transactionMessage);// Send and confirm transactionawait sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(signedTransaction,{ commitment: "confirmed", skipPreflight: true });// Get transaction signatureconst transactionSignature = getSignatureFromTransaction(signedTransaction);console.log("Mint Address:", mint.address.toString());console.log("Frozen token account:", tokenAccount.address.toString());console.log("Transaction Signature:", transactionSignature);
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_token_2022::{ID as TOKEN_2022_PROGRAM_ID,extension::{ExtensionType, default_account_state::instruction::initialize_default_account_state,},instruction::{initialize_account, initialize_mint},state::{Account, Mint},};#[tokio::main]async fn main() -> Result<()> {// Create connection to local validatorlet client = RpcClient::new_with_commitment(String::from("http://localhost:8899"),CommitmentConfig::confirmed(),);let latest_blockhash = client.get_latest_blockhash().await?;// Generate a new keypair for the fee payerlet fee_payer = Keypair::new();// Airdrop 5 SOL to fee payerlet airdrop_signature = client.request_airdrop(&fee_payer.pubkey(), 5_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 mintlet mint = Keypair::new();// Get default mint account size (in bytes),let mint_space =ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::DefaultAccountState])?;let mint_rent = client.get_minimum_balance_for_rent_exemption(mint_space).await?;// Instruction to create new account for mint (token22)let create_mint_account_instruction = create_account(&fee_payer.pubkey(), // payer&mint.pubkey(), // new account (mint)mint_rent, // lamportsmint_space as u64, // space&TOKEN_2022_PROGRAM_ID, // program id);// Instruction to initialize mint account datalet initialize_mint_instruction = initialize_mint(&TOKEN_2022_PROGRAM_ID, // program id&mint.pubkey(), // mint&fee_payer.pubkey(), // mint authoritySome(&fee_payer.pubkey()), // freeze authority9, // decimals)?;// Generate keypair to use as address of token accountlet token_account = Keypair::new();// Get default token account size (in bytes),let token_account_space = Account::LEN;let token_account_rent = client.get_minimum_balance_for_rent_exemption(token_account_space).await?;// Instruction to create new account for token account (token22)let create_token_account_instruction = create_account(&fee_payer.pubkey(), // payer&token_account.pubkey(), // new account (token account)token_account_rent, // renttoken_account_space as u64, // space&TOKEN_2022_PROGRAM_ID, // program id);// initialize token accountlet initialize_token_account = initialize_account(&TOKEN_2022_PROGRAM_ID, // program_id&token_account.pubkey(), // token account&mint.pubkey(), // mint&fee_payer.pubkey(), // authority)?;// initialize default token account state instructionlet initialize_default_account_state_instruction = initialize_default_account_state(&TOKEN_2022_PROGRAM_ID,&mint.pubkey(),&spl_token_2022::state::AccountState::Frozen,)?;// Construct transaction with previous instructionslet transaction = Transaction::new_signed_with_payer(&[create_mint_account_instruction,initialize_default_account_state_instruction,initialize_mint_instruction,create_token_account_instruction,initialize_token_account,],Some(&fee_payer.pubkey()),&[&fee_payer, &mint, &token_account],latest_blockhash,);// Send and confirm transactionlet transaction_signature = client.send_and_confirm_transaction(&transaction).await?;println!("Mint Address: {}", mint.pubkey());println!("token account with default state(frozen) extension: {}",token_account.pubkey());println!("\nSuccessfully enabled the default sate extension on new token accounts");println!("Transaction Signature: {}", transaction_signature);Ok(())}
Console
Click to execute the code.
Is this page helpful?