Đại diện vĩnh viễn
Cách triển khai tiện ích mở rộng InitializePermanentDelegate
InitializePermanentDelegate
chỉ định một đại diện không thể thu hồi với quyền hạn trên tất cả token account
cho một mint. Khác với các đại diện thông thường mà chủ sở hữu token account có
thể thu hồi, đại diện vĩnh viễn không thể thay đổi hoặc xóa bỏ. Đại diện vĩnh
viễn có thể chuyển, đốt và đóng băng token trong bất kỳ token account nào của
mint đó.
Typescript
import { getCreateAccountInstruction } from "@solana-program/system";import {extension,getInitializeAccountInstruction,getInitializeMintInstruction,getInitializePermanentDelegateInstruction,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();// Define the permanent delegate config extensionconst permanentDelegateExtension = extension("PermanentDelegate", {delegate: authority.address // this account will always be able to transfer/burn tokens});// Get mint account size with permanent delegate extensionconst space = BigInt(getMintSize([permanentDelegateExtension]));// 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)const createMintAccountInstruction = getCreateAccountInstruction({payer: authority,newAccount: mint,lamports: rent,space,programAddress: TOKEN_2022_PROGRAM_ADDRESS});// Instruction to initialize permanent delegate extensionconst initializePermanentDelegateInstruction =getInitializePermanentDelegateInstruction({mint: mint.address,delegate: authority.address});// Instruction to initialize mint account dataconst initializeMintInstruction = getInitializeMintInstruction({mint: mint.address,decimals: 6,mintAuthority: authority.address,freezeAuthority: authority.address});// Generate keypair to use as address of token accountconst tokenAccount = await generateKeyPairSigner();// get token account size (with extension awareness)const tokenAccountLen = BigInt(getTokenSize());// Get minimum balance for rent exemptionconst tokenAccountRent = await rpc.getMinimumBalanceForRentExemption(tokenAccountLen).send();// Instruction to create new account for the token accountconst 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});// Collect all instructionsconst instructions = [createMintAccountInstruction,initializePermanentDelegateInstruction,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 with Permanent Delegate Extension:",mint.address.toString());console.log("Token Account:", tokenAccount.address.toString());console.log("Permanent Delegate:", authority.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,instruction::{initialize_account, initialize_mint, initialize_permanent_delegate},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();// Generate a new keypair for the delegatelet delegate = 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?;// Ensure the airdrop is confirmedloop {let confirmed = client.confirm_transaction(&airdrop_signature).await?;if confirmed {break;}}// Generate keypair to use as address of mintlet mint = Keypair::new();// Calculate mint account size with PermanentDelegate extensionlet mint_space =ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::PermanentDelegate])?;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 PermanentDelegate extensionlet initialize_permanent_delegate_ix = initialize_permanent_delegate(&TOKEN_2022_PROGRAM_ID,&mint.pubkey(),&delegate.pubkey(), // permanent delegate authority)?;// 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 token account size (basic)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);// Instruction to initialize token accountlet initialize_token_account_instruction = initialize_account(&TOKEN_2022_PROGRAM_ID, // program_id&token_account.pubkey(), // token account&mint.pubkey(), // mint&fee_payer.pubkey(), // owner)?;// Construct transaction with PermanentDelegate extensionlet transaction = Transaction::new_signed_with_payer(&[create_mint_account_instruction,initialize_permanent_delegate_ix,initialize_mint_instruction,create_token_account_instruction,initialize_token_account_instruction,],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 with Permanent Delegate Extension: {}",mint.pubkey());println!("Token Account: {}", token_account.pubkey());println!("Permanent Delegate: {}", fee_payer.pubkey());println!("Transaction Signature: {}", transaction_signature);Ok(())}
Console
Click to execute the code.
Is this page helpful?