@solana/spl-token
Version:
SPL Token Program JS API
39 lines • 2.13 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.uiAmountToAmount = uiAmountToAmount;
const buffer_layout_utils_1 = require("@solana/buffer-layout-utils");
const web3_js_1 = require("@solana/web3.js");
const constants_js_1 = require("../constants.js");
const uiAmountToAmount_js_1 = require("../instructions/uiAmountToAmount.js");
/**
* Amount as a string using mint-prescribed decimals
*
* @param connection Connection to use
* @param payer Payer of the transaction fees
* @param mint Mint for the account
* @param amount Ui Amount of tokens to be converted to Amount
* @param programId SPL Token program account
*
* @return Ui Amount generated
*/
function uiAmountToAmount(connection_1, payer_1, mint_1, amount_1) {
return __awaiter(this, arguments, void 0, function* (connection, payer, mint, amount, programId = constants_js_1.TOKEN_PROGRAM_ID) {
const transaction = new web3_js_1.Transaction().add((0, uiAmountToAmount_js_1.createUiAmountToAmountInstruction)(mint, amount, programId));
const { returnData, err } = (yield connection.simulateTransaction(transaction, [payer], false)).value;
if (returnData) {
const data = Buffer.from(returnData.data[0], returnData.data[1]);
return (0, buffer_layout_utils_1.u64)().decode(data);
}
return err;
});
}
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