Delege Onaylama

Delege Onaylamak Ne İşe Yarar?

Delege onaylamak, başka bir adresin token hesabı sahibi adına token hesabından sınırlı miktarda token transfer etmesine veya yakmasına izin verir.

Bir token account aynı anda bir mevcut delege ve bir delege edilmiş miktar saklar. Yeni bir delege onaylamak, hesaptaki önceki delegeyi ve izin miktarını değiştirir.

Delege Nasıl Onaylanır

Delege onaylamak, Token Program'ın Approve veya ApproveChecked talimatını kullanır.

Aşağıdaki örnekler ApproveChecked kullanır; bu talimat, çağrıcının mint ve ondalık basamakları sağlamasını gerektirir, böylece talimat onayı işlemeden önce beklenen mint ve token hassasiyetini doğrulayabilir.

Token hesabı sahibi onayı imzalar.

Kaynak Referansı

ÖğeAçıklamaToken ProgramToken Extensions Program
AccountToken account durumu, sahibi, delegeyi ve delege edilmiş miktarı saklar.KaynakKaynak
ApproveÇağrıcının mint veya ondalık basamakları sağlamasını gerektirmeden bir token account için delegeyi ve izin miktarını kaydeden delege onaylama talimatı.KaynakKaynak
ApproveCheckedÇağrıcının mint ve ondalık basamakları sağlamasını gerektiren ve delegeyi ve izin miktarını kaydetmeden önce bu değerleri kontrol eden delege onaylama talimatı.KaynakKaynak
process_approveDelege onaylama için paylaşılan işlemci mantığı.KaynakKaynak

Typescript

Aşağıdaki Kit örnekleri, @solana/kit kullanarak önerilen yaklaşımı göstermektedir. @solana/web3.js kullanan eski örnekler referans için dahil edilmiştir.

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 delegate = await generateKeyPairSigner();
const [tokenAccount] = await findAssociatedTokenPda({
mint: mint.address,
owner: client.payer.address,
tokenProgram: TOKEN_PROGRAM_ADDRESS
});
const result = await client.token.instructions
.approveChecked({
source: tokenAccount, // Token account whose delegate approval changes.
mint: mint.address, // Mint for the token the delegate may spend.
delegate: delegate.address, // Delegate allowed to spend from the token account.
owner: client.payer, // Owner approving this delegate change.
amount: 25n, // Token amount in base units.
decimals: 2 // Decimals defined on the mint account.
})
.sendTransaction();
const tokenAccountData = await client.token.accounts.token.fetch(tokenAccount);
console.log("Mint Address:", mint.address);
console.log("\nToken Account Address:", tokenAccount);
console.log("Token Account:", tokenAccountData.data);
console.log("\nDelegate Address:", delegate.address);
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,
approveChecked,
createMint,
getAccount,
mintToChecked,
TOKEN_PROGRAM_ID
} from "@solana/spl-token";
const result = await approveChecked(
connection, // Connection to the local validator.
feePayer, // Account paying transaction fees.
mintPubkey, // Mint for the token the delegate may spend.
associatedTokenAccount, // Token account whose delegate approval changes.
delegate.publicKey, // Delegate allowed to spend from the token account.
feePayer, // Owner approving this delegate change.
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 tokenAccountData = await getAccount(
connection,
associatedTokenAccount,
"confirmed",
TOKEN_PROGRAM_ID
);
console.log("Mint Address:", mintPubkey.toBase58());
console.log(
"\nAssociated Token Account Address:",
associatedTokenAccount.toBase58()
);
console.log("Associated Token Account:", tokenAccountData);
console.log("\nDelegate Address:", delegate.publicKey.toBase58());
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::{approve_checked, initialize_mint, mint_to_checked},
state::{Account, Mint},
};
#[tokio::main]
async fn main() -> Result<()> {
let client = RpcClient::new_with_commitment(
String::from("http://localhost:8899"),
CommitmentConfig::confirmed(),
);
let delegate = Keypair::new();
let approve_amount = 25;
let transaction = Transaction::new_signed_with_payer(
&[
approve_checked(
&token_program_id(), // Token program to invoke.
&associated_token_address, // Token account whose delegate approval changes.
&mint.pubkey(), // Mint for the token the delegate may spend.
&delegate.pubkey(), // Delegate allowed to spend from the token account.
&fee_payer.pubkey(), // Owner approving this delegate change.
&[], // Additional multisig signers.
approve_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 token_account = client.get_account(&associated_token_address).await?;
let token_data = Account::unpack(&token_account.data)?;
println!("Mint Address: {}", mint.pubkey());
println!(
"\nAssociated Token Account Address: {}",
associated_token_address
);
println!("Associated Token Account: {:#?}", token_data);
println!("\nDelegate Address: {}", delegate.pubkey());
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 (
approve_checked,
ApproveCheckedParams,
create_associated_token_account,
get_associated_token_address,
initialize_mint,
InitializeMintParams,
mint_to_checked,
MintToCheckedParams,
)
from spl.token.constants import MINT_LEN, TOKEN_PROGRAM_ID
DECIMALS = 2
AMOUNT_TO_MINT = 100
AMOUNT_TO_APPROVE = 25
async def main():
rpc = AsyncClient("http://localhost:8899")
delegate = Keypair()
async with rpc:
approve_delegate_instruction = approve_checked(
ApproveCheckedParams(
program_id=TOKEN_PROGRAM_ID, # Token program to invoke.
source=token_account_address, # Token account whose delegate approval changes.
mint=mint.pubkey(), # Mint for the token the delegate may spend.
delegate=delegate.pubkey(), # Account allowed to spend from the token account.
owner=fee_payer.pubkey(), # Account that owns the token account.
amount=AMOUNT_TO_APPROVE, # 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([approve_delegate_instruction], fee_payer.pubkey()),
latest_blockhash.value.blockhash,
)
result = await rpc.send_transaction(transaction)
token_account_info = await token.get_account_info(token_account_address)
token_account = {
key: str(value) if isinstance(value, Pubkey) else value
for key, value in token_account_info._asdict().items()
}
print("Mint Address:", mint.pubkey())
print("\nToken Account Address:", token_account_address)
print("Token Account:")
print(json.dumps(token_account, indent=2))
print("\nDelegate Address:", delegate.pubkey())
print("\nTransaction Signature:", result.value)
if __name__ == "__main__":
asyncio.run(main())
Console
Click to execute the code.

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