Tokens overmaken

Wat Doet het Overmaken van Tokens?

Het overmaken van tokens verplaatst tokens van het ene token account naar een ander token account voor dezelfde mint.

Transfers veranderen de mint supply niet. Transfers werken alleen de saldi tussen token accounts bij.

Hoe Tokens Overmaken

Het overmaken van tokens gebruikt de Transfer of TransferChecked instructie van het Token Program.

De onderstaande voorbeelden gebruiken TransferChecked, wat vereist dat de aanroeper de mint en decimalen verstrekt zodat de instructie de verwachte mint en token-precisie kan verifiëren voordat tokens tussen accounts worden verplaatst.

In het Token Extensions Program is Transfer verouderd ten gunste van TransferChecked of TransferCheckedWithFee.

De eigenaar van het bronaccount of een goedgekeurde gemachtigde ondertekent de transfer. In het Token Extensions Program kan een mint permanent delegate de transfer ook autoriseren als de mint de permanent delegate-extensie heeft ingeschakeld.

Bronreferentie

ItemBeschrijvingToken ProgramToken Extensions Program
AccountDe token account-status slaat de saldi op die door een transfer worden bijgewerkt.BronBron
TransferEen transfer-instructie die tokens tussen token accounts verplaatst zonder dat de aanroeper de mint of decimalen hoeft te verstrekken. Gebruik in het Token Extensions Program in plaats daarvan TransferChecked.BronBron
TransferCheckedEen transfer-instructie die vereist dat de aanroeper de mint en decimalen verstrekt en deze waarden controleert voordat tokens tussen token accounts van dezelfde mint worden verplaatst.BronBron
process_transferGedeelde processorlogica voor token-transfers.BronBron

Typescript

De onderstaande Kit voorbeelden tonen de aanbevolen aanpak met @solana/kit. Verouderde voorbeelden met @solana/web3.js zijn ter referentie bijgevoegd.

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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