ما هي الحالة الافتراضية للحساب؟
يحدد امتداد mint الخاص بـ DefaultAccountState في Token Extensions Program
الحالة الأولية AccountState لكل token account جديد يتم إنشاؤه لذلك الـ
mint.
يُستخدم هذا بشكل شائع لجعل حسابات الرموز الجديدة تبدأ في حالة مُجمدة. لا يمكن استخدام حسابات الرموز التي تبدأ مُجمدة حتى تقوم سلطة التجميد الخاصة بالـ mint بإلغاء تجميدها.
كيفية إنشاء mint مع حالة افتراضية للحساب
لإنشاء mint مع حالة افتراضية للحساب:
- احسب حجم حساب الـ mint والإيجار (rent) المطلوب للـ mint وامتداد
DefaultAccountState. - أنشئ حساب الـ mint باستخدام
CreateAccount، وهيّئDefaultAccountState، ثم هيّئ الـ mint باستخدامInitializeMint. - أنشئ حسابات رموز للـ mint ولاحظ أن كل token account جديد يبدأ في الحالة الافتراضية الحالية.
- استخدم
UpdateDefaultAccountStateلتغيير الحالة التي يجب أن تبدأ بها حسابات الرموز المستقبلية.
احسب حجم الحساب
احسب حجم حساب الـ mint للـ mint الأساسي بالإضافة إلى امتداد
DefaultAccountState. هذا هو الحجم المُستخدَم في CreateAccount.
احسب الإيجار
احسب rent باستخدام الحجم المطلوب للـ mint بالإضافة إلى امتداد
DefaultAccountState.
أنشئ حساب الـ mint
أنشئ حساب الـ mint بالمساحة والـ lamports المحسوبة.
تهيئة DefaultAccountState
تهيئة الامتداد DefaultAccountState على العملة الرمزية.
تهيئة العملة الرمزية
تهيئة العملة الرمزية باستخدام InitializeMint في نفس المعاملة.
إنشاء حساب رمزي
إنشاء حساب رمزي للعملة الرمزية. نظرًا لأن الحالة الافتراضية الحالية هي
Frozen، يبدأ الحساب الرمزي الجديد في حالة مجمدة.
تحديث حالة الحساب الافتراضية
استخدم UpdateDefaultAccountState لتغيير الحالة الافتراضية بحيث لا تبدأ
الحسابات الرمزية المستقبلية في حالة مجمدة.
ترتيب التعليمات
يجب أن يأتي DefaultAccountStateInstruction::Initialize قبل
InitializeMint. يجب تضمين CreateAccount
و_rsDefaultAccountStateInstruction::Initialize_ و_rsInitializeMint_ في نفس
المعاملة.
المرجع المصدري
| العنصر | الوصف | المصدر |
|---|---|---|
DefaultAccountState | امتداد العملة الرمزية الذي يخزن الحالة التي يجب أن ترثها الحسابات الرمزية الجديدة. | المصدر |
DefaultAccountStateInstruction::Initialize | التعليمة التي تهيئ حالة الحساب الرمزي الافتراضية للعملة الرمزية قبل InitializeMint. | المصدر |
DefaultAccountStateInstruction::Update | التعليمة التي تسمح لصلاحية التجميد بتغيير الحالة الافتراضية للحسابات الرمزية المستقبلية. | المصدر |
process_initialize_default_account_state | منطق المعالج الذي يكتب الحالة الافتراضية الأولية على عملة رمزية غير مهيأة. | المصدر |
process_update_default_account_state | منطق المعالج الذي يتحقق من صلاحية التجميد قبل تغيير الحالة الافتراضية المخزنة للعملة الرمزية. | المصدر |
TypeScript
يستخدم المثال Kit أدناه التعليمات المُنشأة مباشرة. تم تضمين أمثلة قديمة
باستخدام @solana/web3.js و @solana/spl-token للرجوع إليها.
مجموعة الأدوات
import {lamports,createClient,generateKeyPairSigner,unwrapOption} from "@solana/kit";import { solanaRpc, rpcAirdrop } from "@solana/kit-plugin-rpc";import { generatedPayer, airdropPayer } from "@solana/kit-plugin-signer";import { getCreateAccountInstruction } from "@solana-program/system";import {AccountState,extension,fetchMint,fetchToken,findAssociatedTokenPda,getCreateAssociatedTokenInstructionAsync,getInitializeDefaultAccountStateInstruction,getInitializeMintInstruction,getMintSize,getUpdateDefaultAccountStateInstruction,isExtension,TOKEN_2022_PROGRAM_ADDRESS} from "@solana-program/token-2022";const client = await createClient().use(generatedPayer()).use(solanaRpc({rpcUrl: "http://localhost:8899",rpcSubscriptionsUrl: "ws://localhost:8900"})).use(rpcAirdrop()).use(airdropPayer(lamports(1_000_000_000n)));const mint = await generateKeyPairSigner();const getAccountStateLabel = (state: AccountState) => {switch (state) {case AccountState.Frozen:return "Frozen";case AccountState.Initialized:return "Initialized";default:return "Uninitialized";}};const defaultAccountStateExtension = extension("DefaultAccountState", {state: AccountState.Frozen});const mintSpace = BigInt(getMintSize([defaultAccountStateExtension]));const mintRent = await client.rpc.getMinimumBalanceForRentExemption(mintSpace).send();await client.sendTransaction([getCreateAccountInstruction({payer: client.payer, // Account funding the new mint account.newAccount: mint, // New mint account to create.lamports: mintRent, // Lamports funding the mint account rent.space: mintSpace, // Account size in bytes for the mint plus DefaultAccountState.programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the mint account.}),getInitializeDefaultAccountStateInstruction({mint: mint.address, // Mint account that stores the DefaultAccountState extension.state: AccountState.Frozen // Default state assigned to new token accounts.}),getInitializeMintInstruction({mint: mint.address, // Mint account to initialize.decimals: 0, // Number of decimals for the token.mintAuthority: client.payer.address, // Authority allowed to mint new tokens.freezeAuthority: client.payer.address // Authority allowed to freeze token accounts.})]);const [tokenAccount] = await findAssociatedTokenPda({mint: mint.address,owner: client.payer.address,tokenProgram: TOKEN_2022_PROGRAM_ADDRESS});await client.sendTransaction([await getCreateAssociatedTokenInstructionAsync({payer: client.payer, // Account funding the associated token account creation.mint: mint.address, // Mint for the associated token account.owner: client.payer.address // Owner of the token account.})]);const tokenAccountBeforeUpdate = await fetchToken(client.rpc, tokenAccount);const mintAccountBeforeUpdate = await fetchMint(client.rpc, mint.address);const defaultAccountStateBeforeUpdate = (unwrapOption(mintAccountBeforeUpdate.data.extensions) ?? []).find((item) => isExtension("DefaultAccountState", item));await client.sendTransaction([getUpdateDefaultAccountStateInstruction({mint: mint.address, // Mint account that stores the DefaultAccountState extension.freezeAuthority: client.payer, // Freeze authority authorized to update the default state.state: AccountState.Initialized // New default state assigned to later token accounts.})]);const tokenAccountAfterUpdate = await fetchToken(client.rpc, tokenAccount);const mintAccountAfterUpdate = await fetchMint(client.rpc, mint.address);const defaultAccountStateAfterUpdate = (unwrapOption(mintAccountAfterUpdate.data.extensions) ?? []).find((item) => isExtension("DefaultAccountState", item));console.log("Mint Address:", mint.address);console.log("Default Account State Before Update:",defaultAccountStateBeforeUpdate);console.log("Token Account State Before Update:",getAccountStateLabel(tokenAccountBeforeUpdate.data.state));console.log("Default Account State After Update:",defaultAccountStateAfterUpdate);console.log("Token Account State After Update:",getAccountStateLabel(tokenAccountAfterUpdate.data.state));
Web3.js
import {Connection,Keypair,sendAndConfirmTransaction,SystemProgram,Transaction,LAMPORTS_PER_SOL} from "@solana/web3.js";import {AccountState,ASSOCIATED_TOKEN_PROGRAM_ID,createAssociatedTokenAccountInstruction,createInitializeDefaultAccountStateInstruction,createInitializeMintInstruction,createUpdateDefaultAccountStateInstruction,ExtensionType,getAccount,getAssociatedTokenAddressSync,getDefaultAccountState,getMint,getMintLen,TOKEN_2022_PROGRAM_ID} from "@solana/spl-token";const connection = new Connection("http://localhost:8899", "confirmed");const latestBlockhash = await connection.getLatestBlockhash();const feePayer = Keypair.generate();const getTokenAccountStateLabel = (account: {isInitialized: boolean;isFrozen: boolean;}) => {if (account.isFrozen) return "Frozen";if (account.isInitialized) return "Initialized";return "Uninitialized";};const airdropSignature = await connection.requestAirdrop(feePayer.publicKey,5 * LAMPORTS_PER_SOL);await connection.confirmTransaction({blockhash: latestBlockhash.blockhash,lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,signature: airdropSignature});const extensions = [ExtensionType.DefaultAccountState];const mint = Keypair.generate();const mintLength = getMintLen(extensions);const mintRent = await connection.getMinimumBalanceForRentExemption(mintLength);const createMintAccountInstruction = SystemProgram.createAccount({fromPubkey: feePayer.publicKey, // Account funding the new mint account.newAccountPubkey: mint.publicKey, // New mint account to create.space: mintLength, // Account size in bytes for the mint plus DefaultAccountState.lamports: mintRent, // Lamports funding the mint account rent.programId: TOKEN_2022_PROGRAM_ID // Program that owns the mint account.});const initializeDefaultStateInstruction =createInitializeDefaultAccountStateInstruction(mint.publicKey, // Mint account that stores the DefaultAccountState extension.AccountState.Frozen, // Default state assigned to new token accounts.TOKEN_2022_PROGRAM_ID // Token program that owns the mint.);const initializeMintInstruction = createInitializeMintInstruction(mint.publicKey, // Mint account to initialize.0, // Number of decimals for the token.feePayer.publicKey, // Authority allowed to mint new tokens.feePayer.publicKey, // Authority allowed to freeze token accounts.TOKEN_2022_PROGRAM_ID // Program that owns the mint account.);await sendAndConfirmTransaction(connection,new Transaction({feePayer: feePayer.publicKey,blockhash: latestBlockhash.blockhash,lastValidBlockHeight: latestBlockhash.lastValidBlockHeight}).add(createMintAccountInstruction,initializeDefaultStateInstruction,initializeMintInstruction),[feePayer, mint]);const tokenAccount = getAssociatedTokenAddressSync(mint.publicKey,feePayer.publicKey,false,TOKEN_2022_PROGRAM_ID,ASSOCIATED_TOKEN_PROGRAM_ID);await sendAndConfirmTransaction(connection,new Transaction().add(createAssociatedTokenAccountInstruction(feePayer.publicKey, // Account funding the associated token account creation.tokenAccount, // Associated token account address to create.feePayer.publicKey, // Owner of the token account.mint.publicKey, // Mint for the associated token account.TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.ASSOCIATED_TOKEN_PROGRAM_ID // Associated Token Program that creates the account.)),[feePayer],{commitment: "confirmed"});const tokenAccountBeforeUpdate = await getAccount(connection,tokenAccount,"confirmed",TOKEN_2022_PROGRAM_ID);const mintAccountBeforeUpdate = await getMint(connection,mint.publicKey,"confirmed",TOKEN_2022_PROGRAM_ID);const defaultAccountStateBeforeUpdate = getDefaultAccountState(mintAccountBeforeUpdate);const updateDefaultStateInstruction =createUpdateDefaultAccountStateInstruction(mint.publicKey, // Mint account that stores the DefaultAccountState extension.AccountState.Initialized, // New default state assigned to later token accounts.feePayer.publicKey, // Freeze authority authorized to update the default state.[], // Additional multisig signers.TOKEN_2022_PROGRAM_ID // Token program that owns the mint.);await sendAndConfirmTransaction(connection,new Transaction().add(updateDefaultStateInstruction),[feePayer],{commitment: "confirmed"});const tokenAccountAfterUpdate = await getAccount(connection,tokenAccount,"confirmed",TOKEN_2022_PROGRAM_ID);const mintAccountAfterUpdate = await getMint(connection,mint.publicKey,"confirmed",TOKEN_2022_PROGRAM_ID);const defaultAccountStateAfterUpdate = getDefaultAccountState(mintAccountAfterUpdate);console.log("Mint Address:", mint.publicKey.toBase58());console.log("Default Account State Before Update:",defaultAccountStateBeforeUpdate);console.log("Token Account State Before Update:",getTokenAccountStateLabel(tokenAccountBeforeUpdate));console.log("Default Account State After Update:",defaultAccountStateAfterUpdate);console.log("Token Account State After Update:",getTokenAccountStateLabel(tokenAccountAfterUpdate));
Rust
use anyhow::Result;use solana_client::nonblocking::rpc_client::RpcClient;use solana_commitment_config::CommitmentConfig;use solana_sdk::{signature::{Keypair, Signer},transaction::Transaction,};use solana_system_interface::instruction::create_account;use spl_associated_token_account_interface::{address::get_associated_token_address_with_program_id,instruction::create_associated_token_account,};use spl_token_2022_interface::{extension::{default_account_state::{instruction::{initialize_default_account_state, update_default_account_state},DefaultAccountState,},BaseStateWithExtensions, ExtensionType, StateWithExtensions,},instruction::initialize_mint,state::{Account, AccountState, Mint},ID as TOKEN_2022_PROGRAM_ID,};fn get_account_state_label(state: AccountState) -> &'static str {match state {AccountState::Frozen => "Frozen",AccountState::Initialized => "Initialized",AccountState::Uninitialized => "Uninitialized",}}#[tokio::main]async fn main() -> Result<()> {let client = RpcClient::new_with_commitment(String::from("http://localhost:8899"),CommitmentConfig::confirmed(),);let fee_payer = Keypair::new();let airdrop_signature = client.request_airdrop(&fee_payer.pubkey(), 5_000_000_000).await?;loop {let confirmed = client.confirm_transaction(&airdrop_signature).await?;if confirmed {break;}}let mint = Keypair::new();let mint_space =ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::DefaultAccountState])?;let mint_rent = client.get_minimum_balance_for_rent_exemption(mint_space).await?;let create_mint_account_instruction = create_account(&fee_payer.pubkey(), // Account funding the new mint account.&mint.pubkey(), // New mint account to create.mint_rent, // Lamports funding the mint account rent.mint_space as u64, // Account size in bytes for the mint plus DefaultAccountState.&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.);let initialize_default_account_state_instruction = initialize_default_account_state(&TOKEN_2022_PROGRAM_ID, // Token program that owns the mint.&mint.pubkey(), // Mint account that stores the DefaultAccountState extension.&AccountState::Frozen, // Default state assigned to new token accounts.)?;let initialize_mint_instruction = initialize_mint(&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.&mint.pubkey(), // Mint account to initialize.&fee_payer.pubkey(), // Authority allowed to mint new tokens.Some(&fee_payer.pubkey()), // Authority allowed to freeze token accounts.0, // Number of decimals for the token.)?;let create_mint_transaction = Transaction::new_signed_with_payer(&[create_mint_account_instruction,initialize_default_account_state_instruction,initialize_mint_instruction,],Some(&fee_payer.pubkey()),&[&fee_payer, &mint],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&create_mint_transaction).await?;let token_account = get_associated_token_address_with_program_id(&fee_payer.pubkey(),&mint.pubkey(),&TOKEN_2022_PROGRAM_ID,);let create_token_account_transaction = Transaction::new_signed_with_payer(&[create_associated_token_account(&fee_payer.pubkey(), // Account funding the associated token account creation.&fee_payer.pubkey(), // Owner of the token account.&mint.pubkey(), // Mint for the associated token account.&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.)],Some(&fee_payer.pubkey()),&[&fee_payer],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&create_token_account_transaction).await?;let token_account_data_before_update = client.get_account(&token_account).await?;let token_account_state_before_update =StateWithExtensions::<Account>::unpack(&token_account_data_before_update.data)?;let mint_account_before_update = client.get_account(&mint.pubkey()).await?;let mint_state_before_update =StateWithExtensions::<Mint>::unpack(&mint_account_before_update.data)?;let default_account_state_before_update = mint_state_before_update.get_extension::<DefaultAccountState>()?;let update_default_account_state_instruction = update_default_account_state(&TOKEN_2022_PROGRAM_ID, // Token program that owns the mint.&mint.pubkey(), // Mint account that stores the DefaultAccountState extension.&fee_payer.pubkey(), // Freeze authority authorized to update the default state.&[&fee_payer.pubkey()], // Additional multisig signers.&AccountState::Initialized, // New default state assigned to later token accounts.)?;let update_default_account_state_transaction = Transaction::new_signed_with_payer(&[update_default_account_state_instruction],Some(&fee_payer.pubkey()),&[&fee_payer],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&update_default_account_state_transaction).await?;let token_account_data_after_update = client.get_account(&token_account).await?;let token_account_state_after_update =StateWithExtensions::<Account>::unpack(&token_account_data_after_update.data)?;let mint_account_after_update = client.get_account(&mint.pubkey()).await?;let mint_state_after_update =StateWithExtensions::<Mint>::unpack(&mint_account_after_update.data)?;let default_account_state_after_update =mint_state_after_update.get_extension::<DefaultAccountState>()?;println!("Mint Address: {}", mint.pubkey());println!("Default Account State Before Update: {:?}",default_account_state_before_update);println!("Token Account State Before Update: {}",get_account_state_label(token_account_state_before_update.base.state));println!("Default Account State After Update: {:?}",default_account_state_after_update);println!("Token Account State After Update: {}",get_account_state_label(token_account_state_after_update.base.state));Ok(())}
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