委任の承認

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();

    // Setup: create a mint and fund the payer's ATA before approving a delegate.

    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(())
}

#!/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:
        # Setup: create a mint, token account, and initial token balance before approving a delegate.

        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())