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• [FILE] actions.js.map
• [FILE] actions.mjs
• [FILE] index.js.map
• [FILE] index.mjs
• [FILE] instructions.js.map
• [FILE] instructions.mjs
• [FILE] state.js.map
• [FILE] state.mjs

Просмотр файла: actions.mjs

import { Keypair, sendAndConfirmTransaction, SystemProgram, Transaction, } from '@solana/web3.js';
import { getSigners } from './../../actions/internal.mjs';
import { TOKEN_2022_PROGRAM_ID } from './../../constants.mjs';
import { createInitializeMintInstruction } from './../../instructions.mjs';
import { ExtensionType, getMintLen } from './../extensionType.mjs';
import { createInitializeInterestBearingMintInstruction, createUpdateRateInterestBearingMintInstruction, } from './instructions.mjs';
/**
 * Initialize an interest bearing account on a mint
 *
 * @param connection      Connection to use
 * @param payer           Payer of the transaction fees
 * @param mintAuthority   Account or multisig that will control minting
 * @param freezeAuthority Optional account or multisig that can freeze token accounts
 * @param rateAuthority   The public key for the account that can update the rate
 * @param rate            The initial interest rate
 * @param decimals        Location of the decimal place
 * @param keypair         Optional keypair, defaulting to a new random one
 * @param confirmOptions  Options for confirming the transaction
 * @param programId       SPL Token program account
 *
 * @return Public key of the mint
 */
export async function createInterestBearingMint(connection, payer, mintAuthority, freezeAuthority, rateAuthority, rate, decimals, keypair = Keypair.generate(), confirmOptions, programId = TOKEN_2022_PROGRAM_ID) {
    const mintLen = getMintLen([ExtensionType.InterestBearingMint]);
    const lamports = await connection.getMinimumBalanceForRentExemption(mintLen);
    const transaction = new Transaction().add(SystemProgram.createAccount({
        fromPubkey: payer.publicKey,
        newAccountPubkey: keypair.publicKey,
        space: mintLen,
        lamports,
        programId,
    }), createInitializeInterestBearingMintInstruction(keypair.publicKey, rateAuthority, rate, programId), createInitializeMintInstruction(keypair.publicKey, decimals, mintAuthority, freezeAuthority, programId));
    await sendAndConfirmTransaction(connection, transaction, [payer, keypair], confirmOptions);
    return keypair.publicKey;
}
/**
 * Update the interest rate of an interest bearing account
 *
 * @param connection      Connection to use
 * @param payer           Payer of the transaction fees
 * @param mint            Public key of the mint
 * @param rateAuthority   The public key for the account that can update the rate
 * @param rate            The initial interest rate
 * @param multiSigners    Signing accounts if `owner` is a multisig
 * @param confirmOptions  Options for confirming the transaction
 * @param programId       SPL Token program account
 *
 * @return Signature of the confirmed transaction
 */
export async function updateRateInterestBearingMint(connection, payer, mint, rateAuthority, rate, multiSigners = [], confirmOptions, programId = TOKEN_2022_PROGRAM_ID) {
    const [rateAuthorityPublicKey, signers] = getSigners(rateAuthority, multiSigners);
    const transaction = new Transaction().add(createUpdateRateInterestBearingMintInstruction(mint, rateAuthorityPublicKey, rate, signers, programId));
    return await sendAndConfirmTransaction(connection, transaction, [payer, rateAuthority, ...signers], confirmOptions);
}
//# sourceMappingURL=actions.js.map

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