Solana 文档Solana 上的代币基础

创建 Token Account

什么是 Token Account？

Token Account 是 Solana 的 Token Programs 中的一种账户类型，用于存储个人对特定代币（铸币）的所有权信息。每个 Token Account 都与一个铸币相关联，并跟踪代币余额和所有者等详细信息。

Token Account Type
/// Account data.

#[repr(C)]

#[derive(Clone, Copy, Debug, Default, PartialEq)]

pub struct Account {

    /// The mint associated with this account

    pub mint: Pubkey,

    /// The owner of this account.

    pub owner: Pubkey,

    /// The amount of tokens this account holds.

    pub amount: u64,

    /// If `delegate` is `Some` then `delegated_amount` represents

    /// the amount authorized by the delegate

    pub delegate: COption<Pubkey>,

    /// The account's state

    pub state: AccountState,

    /// If `is_native.is_some`, this is a native token, and the value logs the

    /// rent-exempt reserve. An Account is required to be rent-exempt, so

    /// the value is used by the Processor to ensure that wrapped SOL

    /// accounts do not drop below this threshold.

    pub is_native: COption<u64>,

    /// The amount delegated

    pub delegated_amount: u64,

    /// Optional authority to close the account.

    pub close_authority: COption<Pubkey>,

}

请注意，在源代码中，开发者将 Token Account 称为 Account 类型。无论是 Token Program 还是 Token Extension Program， 它们的 Token Account 都共享相同的基础实现。

要持有特定铸币的代币，用户必须首先创建一个 Token Account。每个 Token Account 跟踪以下内容：

  1. 一个特定的铸币（Token Account 持有的代币类型）
  2. 一个所有者（可以从账户中转移代币的权限）

以下是一个使用 Solana 上的 USD Coin (USDC) 的示例：

  • USD Coin 的铸币地址：EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
  • Circle（USD Coin 的发行方）在 3emsAVdmGKERbHjmGfQ6oZ1e35dkf5iYcS6U4CPKFVaa 处有一个 Token Account
  • 该 Token Account 仅持有 USD Coin 代币（铸币）的单位
  • Circle 在 7VHUFJHWu2CuExkJcJrzhQPJ2oygupTWkL2A2For4BmE 处拥有所有者权限，可以转移这些代币

您可以在 Solana Explorer 上查看此 Token Account 的详细信息。

"所有者" 一词在两种不同的上下文中使用：

  1. Token Account 的 "所有者" - 这是存储在 Token Account 数据中的一个地址，作为 Account 类型的 "owner" 字段，由 Token Program 定义。所有者可以从账户中转移、销毁或委托代币。为了与程序所有者区分开来，这个地址有时被称为 Token Account 的 "权限"。

  2. 程序 "owner" - 这是指在 Solana 上拥有账户数据的程序。对于代币账户来说，这通常是 Token Program 或 Token Extension Program，如基础 Solana Account 类型的 "owner" 字段中所指定。

在处理代币账户时，"owner" 通常指的是可以花费代币的权限，而不是拥有账户的程序。

什么是关联代币账户？

关联代币账户是一个地址为程序派生地址 (PDA) 的代币账户，由 Associated Token Program 创建。您可以将关联代币账户视为用户持有特定代币（铸币）的默认代币账户。

"关联代币账户" 这一术语仅适用于由 Associated Token Program 创建的代币账户。

关联代币账户提供了一种确定性的方法，用于查找用户针对任何给定铸币的代币账户。您可以在 这里 查看派生实现。

Associated Token Account Address Derivation
pub fn get_associated_token_address_and_bump_seed_internal(

    wallet_address: &Pubkey,

    token_mint_address: &Pubkey,

    program_id: &Pubkey,

    token_program_id: &Pubkey,

) -> (Pubkey, u8) {

    Pubkey::find_program_address(

        &[

            &wallet_address.to_bytes(), // Owner's public key

            &token_program_id.to_bytes(), // Token Program or Token Extension Program

            &token_mint_address.to_bytes(), // Token mint address

        ],

        program_id, // Associated Token Program ID

    )

}

这种确定性派生确保对于任何钱包地址和代币铸币的组合，始终存在唯一的关联代币账户地址。这种方法使得查找用户针对任何给定代币铸币的代币账户变得简单，无需单独跟踪代币账户地址。

Associated Token Program 作为一个辅助程序，创建具有确定性地址（PDA）的代币账户。在创建关联代币账户时，Associated Token Program 会对 Token Program 或 Token Extension Program 进行 CPI（Cross-Program Invocation）。创建的账户由 Token Program 拥有，其结构与 Token Program 中定义的 Account 类型相同。Associated Token Program 不维护任何状态 - 它仅提供一种标准化的方法，在确定性地址（PDA）上创建代币账户。

如何创建一个 Token Account

要创建一个 Token Account，请调用 InitializeAccount 指令。您可以在 这里 找到该指令的实现。

创建一个 token account 的交易需要两个指令：

  1. 调用 System Program 来创建并分配 token account 的空间，并将所有权转移到 Token Program。
  2. 调用 Token Program 来初始化 token account 数据。

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 {

  getInitializeAccount2Instruction,

  getInitializeMintInstruction,

  getMintSize,

  getTokenSize,

  TOKEN_2022_PROGRAM_ADDRESS

} from "@solana-program/token-2022";



// Create Connection, local validator in this example

const rpc = createSolanaRpc("http://127.0.0.1:8899");

const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");



// Get latest blockhash to include in transaction

const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();



// 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();



// Instruction to create new account for mint (token 2022 program)

// Invokes the system program

const createAccountInstruction = getCreateAccountInstruction({

  payer: feePayer,

  newAccount: mint,

  lamports: rent,

  space,

  programAddress: TOKEN_2022_PROGRAM_ADDRESS

});



// Instruction to initialize mint account data

// Invokes the token 2022 program

const initializeMintInstruction = getInitializeMintInstruction({

  mint: mint.address,

  decimals: 2,

  mintAuthority: feePayer.address

});



const instructions = [createAccountInstruction, initializeMintInstruction];



// Create transaction message

const transactionMessage = pipe(

  createTransactionMessage({ version: 0 }), // Create transaction message

  (tx) => setTransactionMessageFeePayerSigner(feePayer, tx), // Set fee payer

  (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx), // Set transaction blockhash

  (tx) => appendTransactionMessageInstructions(instructions, tx) // Append instructions

);



// Sign transaction message with required signers (fee payer and mint keypair)

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);

console.log("Transaction Signature: ", transactionSignature);



// Generate keypair to use as address of token account

const tokenAccount = await generateKeyPairSigner();



// Get token account size (in bytes)

const tokenAccountSpace = BigInt(getTokenSize());



// Get minimum balance for rent exemption

const tokenAccountRent = await rpc

  .getMinimumBalanceForRentExemption(tokenAccountSpace)

  .send();



// Instruction to create new account for token account (token 2022 program)

// Invokes the system program

const createTokenAccountInstruction = getCreateAccountInstruction({

  payer: feePayer,

  newAccount: tokenAccount,

  lamports: tokenAccountRent,

  space: tokenAccountSpace,

  programAddress: TOKEN_2022_PROGRAM_ADDRESS

});



// Instruction to initialize token account data

// Invokes the token 2022 program

const initializeTokenAccountInstruction = getInitializeAccount2Instruction({

  account: tokenAccount.address,

  mint: mint.address,

  owner: feePayer.address

});



const instructions2 = [

  createTokenAccountInstruction,

  initializeTokenAccountInstruction

];



// Create transaction message for token account creation

const tokenAccountMessage = pipe(

  createTransactionMessage({ version: 0 }), // Create transaction message

  (tx) => setTransactionMessageFeePayerSigner(feePayer, tx), // Set fee payer

  (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx), // Set transaction blockhash

  (tx) => appendTransactionMessageInstructions(instructions2, tx) // Append instructions

);



// Sign transaction message with required signers (fee payer and token account keypair)

const signedTokenAccountTx =

  await signTransactionMessageWithSigners(tokenAccountMessage);



// Send and confirm transaction

await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(

  signedTokenAccountTx,

  { commitment: "confirmed" }

);



// Get transaction signature

const tokenAccountTxSignature =

  getSignatureFromTransaction(signedTokenAccountTx);



console.log("Token Account Address:", tokenAccount.address);

console.log("Transaction Signature:", tokenAccountTxSignature);
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Rust

use anyhow::Result;

use solana_client::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,

    instruction::{initialize_account, initialize_mint},

    state::{Account, Mint},

};



fn main() -> Result<()> {

    // Create connection to local validator

    let client = RpcClient::new_with_commitment(

        String::from("http://127.0.0.1:8899"),

        CommitmentConfig::confirmed(),

    );

    let recent_blockhash = client.get_latest_blockhash()?;



    // 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)?;

    client.confirm_transaction(&airdrop_signature)?;



    loop {

        let confirmed = client.confirm_transaction(&airdrop_signature)?;

        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)?;



    // Instruction to create new account for mint (token 2022 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_2022_program_id(), // program id

    );



    // Instruction to initialize mint account data

    let initialize_mint_instruction = initialize_mint(

        &token_2022_program_id(),

        &mint.pubkey(),            // mint

        &fee_payer.pubkey(),       // mint authority

        Some(&fee_payer.pubkey()), // freeze authority

        2,                         // decimals

    )?;



    // Create transaction and add instructions

    let transaction = Transaction::new_signed_with_payer(

        &[create_account_instruction, initialize_mint_instruction],

        Some(&fee_payer.pubkey()),

        &[&fee_payer, &mint],

        recent_blockhash,

    );



    // Send and confirm transaction

    let transaction_signature = client.send_and_confirm_transaction(&transaction)?;



    println!("Mint Address: {}", mint.pubkey());

    println!("Transaction Signature: {}", transaction_signature);



    // Generate keypair to use as address of token account

    let token_account = Keypair::new();



    // Get 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)?;



    // Instruction to create new account for token account (token 2022 program)

    let create_token_account_instruction = create_account(

        &fee_payer.pubkey(),        // payer

        &token_account.pubkey(),    // new account (token account)

        token_account_rent,         // lamports

        token_account_space as u64, // space

        &token_2022_program_id(),   // program id

    );



    // Instruction to initialize token account data

    let initialize_token_account_instruction = initialize_account(

        &token_2022_program_id(),

        &token_account.pubkey(), // account

        &mint.pubkey(),          // mint

        &fee_payer.pubkey(),     // owner

    )?;



    // Create transaction and add instructions

    let transaction = Transaction::new_signed_with_payer(

        &[

            create_token_account_instruction,

            initialize_token_account_instruction,

        ],

        Some(&fee_payer.pubkey()),

        &[&fee_payer, &token_account],

        recent_blockhash,

    );



    // Send and confirm transaction

    let transaction_signature = client.send_and_confirm_transaction(&transaction)?;



    println!("Token Account Address: {}", token_account.pubkey());

    println!("Transaction Signature: {}", transaction_signature);



    Ok(())

}
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如何创建一个 Associated Token Account

要创建一个 Associated Token Account，请调用 Create 指令。您可以在 这里 找到该指令的实现。

创建一个 associated token account 的指令会自动调用 System Program 来创建 token account，并调用 Token Program 来初始化 token account 数据。这是通过 Cross Program Invocations (CPI) 实现的。

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_2022_PROGRAM_ADDRESS,

  findAssociatedTokenPda

} from "@solana-program/token-2022";



// Create Connection, local validator in this example

const rpc = createSolanaRpc("http://127.0.0.1:8899");

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 2022 program)

// Invokes the system program

const createAccountInstruction = getCreateAccountInstruction({

  payer: feePayer,

  newAccount: mint,

  lamports: rent,

  space,

  programAddress: TOKEN_2022_PROGRAM_ADDRESS

});



// Instruction to initialize mint account data

// Invokes the token 2022 program

const initializeMintInstruction = getInitializeMintInstruction({

  mint: mint.address,

  decimals: 2,

  mintAuthority: feePayer.address

});



const instructions = [createAccountInstruction, initializeMintInstruction];



// 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("Transaction Signature: ", transactionSignature);



// Use findAssociatedTokenPda to derive the ATA address

const [associatedTokenAddress] = await findAssociatedTokenPda({

  mint: mint.address,

  owner: feePayer.address,

  tokenProgram: TOKEN_2022_PROGRAM_ADDRESS

});



console.log(

  "Associated Token Account Address: ",

  associatedTokenAddress.toString()

);



// Get a fresh blockhash for the second transaction

const { value: latestBlockhash2 } = await rpc.getLatestBlockhash().send();



// Create instruction to create the associated token account

const createAtaInstruction = await getCreateAssociatedTokenInstructionAsync({

  payer: feePayer,

  mint: mint.address,

  owner: feePayer.address

});



// Create transaction message

const transactionMessage2 = pipe(

  createTransactionMessage({ version: 0 }),

  (tx) => setTransactionMessageFeePayerSigner(feePayer, tx),

  (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash2, tx),

  (tx) => appendTransactionMessageInstructions([createAtaInstruction], tx)

);



// Sign transaction message with all required signers

const signedTransaction2 =

  await signTransactionMessageWithSigners(transactionMessage2);



// Send and confirm transaction

await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(

  signedTransaction2,

  { commitment: "confirmed" }

);



// Get transaction signature

const transactionSignature2 = getSignatureFromTransaction(signedTransaction2);

console.log("Transaction Signature: ", transactionSignature2);
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Rust

use anyhow::Result;

use solana_client::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_2022::{id as token_2022_program_id, instruction::initialize_mint, state::Mint};



fn main() -> Result<()> {

    // Create connection to local validator

    let client = RpcClient::new_with_commitment(

        String::from("http://127.0.0.1:8899"),

        CommitmentConfig::confirmed(),

    );

    let recent_blockhash = client.get_latest_blockhash()?;



    // 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)?;

    client.confirm_transaction(&airdrop_signature)?;



    loop {

        let confirmed = client.confirm_transaction(&airdrop_signature)?;

        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)?;



    // Instruction to create new account for mint (token 2022 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_2022_program_id(), // program id

    );



    // Instruction to initialize mint account data

    let initialize_mint_instruction = initialize_mint(

        &token_2022_program_id(),

        &mint.pubkey(),            // mint

        &fee_payer.pubkey(),       // mint authority

        Some(&fee_payer.pubkey()), // freeze authority

        2,                         // decimals

    )?;



    // Create transaction and add instructions

    let transaction = Transaction::new_signed_with_payer(

        &[create_account_instruction, initialize_mint_instruction],

        Some(&fee_payer.pubkey()),

        &[&fee_payer, &mint],

        recent_blockhash,

    );



    // Send and confirm transaction

    let transaction_signature = client.send_and_confirm_transaction(&transaction)?;



    println!("Mint Address: {}", mint.pubkey());

    println!("Transaction Signature: {}", transaction_signature);



    // Get the latest blockhash for the next transaction

    let recent_blockhash = client.get_latest_blockhash()?;



    // Derive the associated token account address for fee_payer

    let associated_token_account = get_associated_token_address_with_program_id(

        &fee_payer.pubkey(),      // owner

        &mint.pubkey(),           // mint

        &token_2022_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_2022_program_id(), // program id

    );



    // Create transaction and add instruction

    let transaction = Transaction::new_signed_with_payer(

        &[create_ata_instruction],

        Some(&fee_payer.pubkey()),

        &[&fee_payer],

        recent_blockhash,

    );



    // Send and confirm transaction

    let transaction_signature = client.send_and_confirm_transaction(&transaction)?;



    println!(

        "Associated Token Account Address: {}",

        associated_token_account

    );

    println!("Transaction Signature: {}", transaction_signature);



    Ok(())

}
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