Transferir tokens

O Que Faz a Transferência de Tokens?

A transferência de tokens move tokens de um token account para outro token account da mesma mint.

As transferências não alteram o fornecimento da mint. As transferências apenas atualizam os saldos entre token accounts.

Como Transferir Tokens

A transferência de tokens usa a instrução Transfer ou TransferChecked do Token Program.

Os exemplos abaixo usam TransferChecked, que requer que o chamador forneça a mint e os decimais para que a instrução possa verificar a mint esperada e a precisão do token antes de mover tokens entre contas.

No Token Extensions Program, Transfer está descontinuado em favor de TransferChecked ou TransferCheckedWithFee.

O proprietário do token account de origem ou um delegado aprovado assina a transferência. No Token Extensions Program, um delegado permanente da mint também pode autorizar a transferência se a mint tiver a extensão de delegado permanente habilitada.

Referência de Código-Fonte

ItemDescriçãoToken ProgramToken Extensions Program
AccountO estado do token account armazena os saldos atualizados por uma transferência.Código-FonteCódigo-Fonte
TransferUma instrução de transferência que move tokens entre token accounts sem exigir que o chamador forneça a mint ou os decimais. No Token Extensions Program, use TransferChecked em vez disso.Código-FonteCódigo-Fonte
TransferCheckedUma instrução de transferência que requer que o chamador forneça a mint e os decimais e verifica esses valores antes de mover tokens entre token accounts da mesma mint.Código-FonteCódigo-Fonte
process_transferLógica compartilhada do processador para transferências de tokens.Código-FonteCódigo-Fonte

Typescript

Os exemplos Kit abaixo mostram a abordagem recomendada usando @solana/kit. Exemplos legados usando @solana/web3.js estão incluídos para referência.

Kit

import { generateKeyPairSigner } from "@solana/kit";
import { createLocalClient } from "@solana/kit-client-rpc";
import {
findAssociatedTokenPda,
tokenProgram,
TOKEN_PROGRAM_ADDRESS
} from "@solana-program/token";
const client = await createLocalClient()
.use(tokenProgram());
const mint = await generateKeyPairSigner();
const recipient = await generateKeyPairSigner();
const result = await client.token.instructions
.transferToATA({
mint: mint.address, // Mint for the token being transferred.
authority: client.payer, // Owner or delegate approving the transfer.
recipient: recipient.address, // Account that owns the destination token account.
amount: 25n, // Token amount in base units.
decimals: 2 // Decimals defined on the mint account.
})
.sendTransaction();
const [sourceTokenAccount] = await findAssociatedTokenPda({
mint: mint.address,
owner: client.payer.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
const [destinationTokenAccount] = await findAssociatedTokenPda({
mint: mint.address,
owner: recipient.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
const [sourceTokenAccountData, destinationTokenAccountData] =
await client.token.accounts.token.fetchAll([
sourceTokenAccount,
destinationTokenAccount
]);
console.log("Mint Address:", mint.address);
console.log("\nSource Token Account Address:", sourceTokenAccount);
console.log("Source Token Account:", sourceTokenAccountData.data);
console.log("\nDestination Token Account Address:", destinationTokenAccount);
console.log("Destination Token Account:", destinationTokenAccountData.data);
console.log("\nTransaction Signature:", result.context.signature);
Console
Click to execute the code.

Web3.js

import { Connection, Keypair, LAMPORTS_PER_SOL } from "@solana/web3.js";
import {
createAssociatedTokenAccount,
createMint,
getAccount,
mintToChecked,
TOKEN_PROGRAM_ID,
transferChecked
} from "@solana/spl-token";
const result = await transferChecked(
connection, // Connection to the local validator.
feePayer, // Account paying transaction fees.
feePayerATA, // Token account sending the tokens.
mintPubkey, // Mint for the token being transferred.
recipientATA, // Token account receiving the tokens.
feePayer, // Owner or delegate approving the transfer.
25, // Token amount in base units.
2, // Decimals defined on the mint account.
[], // Additional multisig signers.
{
commitment: "confirmed" // Confirmation options for the transaction.
},
TOKEN_PROGRAM_ID // Token program to invoke.
);
const senderTokenAccount = await getAccount(
connection,
feePayerATA,
"confirmed",
TOKEN_PROGRAM_ID
);
const recipientTokenAccount = await getAccount(
connection,
recipientATA,
"confirmed",
TOKEN_PROGRAM_ID
);
console.log("Mint Address:", mintPubkey.toBase58());
console.log("\nSource Token Account Address:", feePayerATA.toBase58());
console.log("Source Token Account:", senderTokenAccount);
console.log("\nDestination Token Account Address:", recipientATA.toBase58());
console.log("Destination Token Account:", recipientTokenAccount);
console.log("\nTransaction Signature:", result);
Console
Click to execute the code.

Rust

Rust
use anyhow::Result;
use solana_client::nonblocking::rpc_client::RpcClient;
use solana_commitment_config::CommitmentConfig;
use solana_sdk::{
program_pack::Pack,
signature::{Keypair, Signer},
transaction::Transaction,
};
use solana_system_interface::instruction::create_account;
use spl_associated_token_account_interface::{
address::get_associated_token_address, instruction::create_associated_token_account,
};
use spl_token_interface::{
id as token_program_id,
instruction::{initialize_mint, mint_to_checked, transfer_checked},
state::{Account, Mint},
};
#[tokio::main]
async fn main() -> Result<()> {
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let recipient = Keypair::new();
let transfer_amount = 25;
let transaction = Transaction::new_signed_with_payer(
&[
transfer_checked(
&token_program_id(), // Token program to invoke.
&source_token_address, // Token account sending the tokens.
&mint.pubkey(), // Mint for the token being transferred.
&destination_token_address, // Token account receiving the tokens.
&fee_payer.pubkey(), // Owner or delegate approving the transfer.
&[], // Additional multisig signers.
transfer_amount, // Token amount in base units.
decimals, // Decimals defined on the mint account.
)?,
],
Some(&fee_payer.pubkey()),
&[&fee_payer],
latest_blockhash,
);
let transaction_signature = client.send_and_confirm_transaction(&transaction).await?;
let source_token_account = client.get_account(&source_token_address).await?;
let source_token_data = Account::unpack(&source_token_account.data)?;
let destination_token_account = client.get_account(&destination_token_address).await?;
let destination_token_data = Account::unpack(&destination_token_account.data)?;
println!("Mint Address: {}", mint.pubkey());
println!("\nSource Token Account Address: {}", source_token_address);
println!("Source Token Account: {:#?}", source_token_data);
println!(
"\nDestination Token Account Address: {}",
destination_token_address
);
println!("Destination Token Account: {:#?}", destination_token_data);
println!("\nTransaction Signature: {}", transaction_signature);
Ok(())
}
Console
Click to execute the code.

Python

Python
#!/usr/bin/env python3
import asyncio
import json
from solana.rpc.async_api import AsyncClient
from solders.keypair import Keypair
from solders.message import Message
from solders.pubkey import Pubkey
from solders.system_program import create_account, CreateAccountParams
from solders.transaction import Transaction
from spl.token.async_client import AsyncToken
from spl.token.instructions import (
create_associated_token_account,
get_associated_token_address,
initialize_mint,
InitializeMintParams,
mint_to_checked,
MintToCheckedParams,
transfer_checked,
TransferCheckedParams,
)
from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_ID
DECIMALS = 2
AMOUNT_TO_MINT = 100
AMOUNT_TO_TRANSFER = 25
async def main():
rpc = AsyncClient("http://localhost:8899")
receiver = Keypair()
async with rpc:
transfer_tokens_instruction = transfer_checked(
TransferCheckedParams(
program_id=TOKEN_PROGRAM_ID, # Token program to invoke.
source=source_token_account, # Token account sending the tokens.
mint=mint.pubkey(), # Mint for the token being transferred.
dest=destination_token_account, # Token account receiving the tokens.
owner=fee_payer.pubkey(), # Account that owns the source token account.
amount=AMOUNT_TO_TRANSFER, # Token amount in base units.
decimals=DECIMALS, # Decimals defined on the mint account.
)
)
latest_blockhash = await rpc.get_latest_blockhash()
transaction = Transaction(
[fee_payer],
Message([transfer_tokens_instruction], fee_payer.pubkey()),
latest_blockhash.value.blockhash,
)
result = await rpc.send_transaction(transaction)
source_token_account_info = await token.get_account_info(source_token_account)
destination_token_account_info = await token.get_account_info(destination_token_account)
source_account = {
key: str(value) if isinstance(value, Pubkey) else value
for key, value in source_token_account_info._asdict().items()
}
destination_account = {
key: str(value) if isinstance(value, Pubkey) else value
for key, value in destination_token_account_info._asdict().items()
}
print("Mint Address:", mint.pubkey())
print("\nSource Token Account Address:", source_token_account)
print("Source Token Account:")
print(json.dumps(source_account, indent=2))
print("\nDestination Token Account Address:", destination_token_account)
print("Destination Token Account:")
print(json.dumps(destination_account, indent=2))
print("\nTransaction Signature:", result.value)
if __name__ == "__main__":
asyncio.run(main())
Console
Click to execute the code.

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