@solana/spl-token
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SPL Token Program JS API
72 lines • 4.62 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createInterestBearingMint = createInterestBearingMint;
exports.updateRateInterestBearingMint = updateRateInterestBearingMint;
const web3_js_1 = require("@solana/web3.js");
const internal_js_1 = require("../../actions/internal.js");
const constants_js_1 = require("../../constants.js");
const initializeMint_js_1 = require("../../instructions/initializeMint.js");
const extensionType_js_1 = require("../extensionType.js");
const instructions_js_1 = require("./instructions.js");
/**
* 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
*/
function createInterestBearingMint(connection_1, payer_1, mintAuthority_1, freezeAuthority_1, rateAuthority_1, rate_1, decimals_1) {
return __awaiter(this, arguments, void 0, function* (connection, payer, mintAuthority, freezeAuthority, rateAuthority, rate, decimals, keypair = web3_js_1.Keypair.generate(), confirmOptions, programId = constants_js_1.TOKEN_2022_PROGRAM_ID) {
const mintLen = (0, extensionType_js_1.getMintLen)([extensionType_js_1.ExtensionType.InterestBearingConfig]);
const lamports = yield connection.getMinimumBalanceForRentExemption(mintLen);
const transaction = new web3_js_1.Transaction().add(web3_js_1.SystemProgram.createAccount({
fromPubkey: payer.publicKey,
newAccountPubkey: keypair.publicKey,
space: mintLen,
lamports,
programId,
}), (0, instructions_js_1.createInitializeInterestBearingMintInstruction)(keypair.publicKey, rateAuthority, rate, programId), (0, initializeMint_js_1.createInitializeMintInstruction)(keypair.publicKey, decimals, mintAuthority, freezeAuthority, programId));
yield (0, web3_js_1.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
*/
function updateRateInterestBearingMint(connection_1, payer_1, mint_1, rateAuthority_1, rate_1) {
return __awaiter(this, arguments, void 0, function* (connection, payer, mint, rateAuthority, rate, multiSigners = [], confirmOptions, programId = constants_js_1.TOKEN_2022_PROGRAM_ID) {
const [rateAuthorityPublicKey, signers] = (0, internal_js_1.getSigners)(rateAuthority, multiSigners);
const transaction = new web3_js_1.Transaction().add((0, instructions_js_1.createUpdateRateInterestBearingMintInstruction)(mint, rateAuthorityPublicKey, rate, signers, programId));
return yield (0, web3_js_1.sendAndConfirmTransaction)(connection, transaction, [payer, rateAuthority, ...signers], confirmOptions);
});
}
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