solana-program-library/token/js/examples/createMintCloseAuthority.ts

60 lines
1.9 KiB
TypeScript

import {
closeAccount,
createInitializeMintInstruction,
createInitializeMintCloseAuthorityInstruction,
getMintLen,
ExtensionType,
TOKEN_2022_PROGRAM_ID,
} from '../src';
import {
clusterApiUrl,
sendAndConfirmTransaction,
Connection,
Keypair,
SystemProgram,
Transaction,
LAMPORTS_PER_SOL,
} from '@solana/web3.js';
(async () => {
const payer = Keypair.generate();
const mintKeypair = Keypair.generate();
const mint = mintKeypair.publicKey;
const mintAuthority = Keypair.generate();
const freezeAuthority = Keypair.generate();
const closeAuthority = Keypair.generate();
const connection = new Connection(clusterApiUrl('devnet'), 'confirmed');
const airdropSignature = await connection.requestAirdrop(payer.publicKey, 2 * LAMPORTS_PER_SOL);
await connection.confirmTransaction({ signature: airdropSignature, ...(await connection.getLatestBlockhash()) });
const extensions = [ExtensionType.MintCloseAuthority];
const mintLen = getMintLen(extensions);
const lamports = await connection.getMinimumBalanceForRentExemption(mintLen);
const transaction = new Transaction().add(
SystemProgram.createAccount({
fromPubkey: payer.publicKey,
newAccountPubkey: mint,
space: mintLen,
lamports,
programId: TOKEN_2022_PROGRAM_ID,
}),
createInitializeMintCloseAuthorityInstruction(mint, closeAuthority.publicKey, TOKEN_2022_PROGRAM_ID),
createInitializeMintInstruction(
mint,
9,
mintAuthority.publicKey,
freezeAuthority.publicKey,
TOKEN_2022_PROGRAM_ID
)
);
await sendAndConfirmTransaction(connection, transaction, [payer, mintKeypair], undefined);
console.log(mint.toBase58());
await closeAccount(connection, payer, mint, payer.publicKey, closeAuthority, [], undefined, TOKEN_2022_PROGRAM_ID);
})();