不可轉讓擴展

NonTransferable 擴展是一個 Mint 賬戶擴展，該擴展防止代幣在賬戶之間轉移，使其永久綁定於當前持有人。

初始化鑄幣賬戶

要在 Mint 賬戶上初始化 MintCloseAuthority 擴展，我們需要使用 initializeNonTransferableMint() 函數。

以下是如何使用不可轉讓擴展創建鑄幣的方法：

ts
import {
    Keypair,
    SystemProgram,
    Transaction,
    sendAndConfirmTransaction,
} from '@solana/web3.js';
import {
    createInitializeMintInstruction,
    createInitializeNonTransferableMintInstruction,
    getMintLen,
    ExtensionType,
    TOKEN_2022_PROGRAM_ID,
} from '@solana/spl-token';

const mint = Keypair.generate();

// Calculate the size needed for a Mint account with Non Transferable extension
const mintLen = getMintLen([ExtensionType.NonTransferable]);

// Calculate minimum lamports required for rent exemption
const lamports = await connection.getMinimumBalanceForRentExemption(mintLen);

// Create the account with the correct size and owner
const createAccountInstruction = SystemProgram.createAccount({
    fromPubkey: keypair.publicKey,
    newAccountPubkey: mint.publicKey,
    space: mintLen,
    lamports,
    programId: TOKEN_2022_PROGRAM_ID,
});

// Initialize the Non Transferable extension
const initializeMintNonTransferable = createInitializeNonTransferableMintInstruction(
    mint.publicKey,
    TOKEN_2022_PROGRAM_ID,
);

// Initialize the mint itself
const initializeMintInstruction = createInitializeMintInstruction(
    mint.publicKey,
    6,
    keypair.publicKey,
    null,
    TOKEN_2022_PROGRAM_ID,
);

// Combine all instructions in the correct order
const transaction = new Transaction().add(
    createAccountInstruction,
    initializeMintNonTransferable,
    initializeMintInstruction,
);

const signature = await sendAndConfirmTransaction(connection, transaction, [keypair, mint]);

console.log(`Mint created! Check out your TX here: https://explorer.solana.com/tx/${signature}?cluster=devnet`);

使用Web3.js的Token2022

不可轉讓擴展

初始化鑄幣賬戶