solana-pay
Version:
Solana Payment API.
173 lines (172 loc) • 9.21 kB
JavaScript
;
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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());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
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case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createOrder = createOrder;
exports.orderPaid = orderPaid;
var coin_1 = require("./coin");
var web3_js_1 = require("@solana/web3.js");
var connection_1 = require("./connection");
var uuid_1 = require("uuid");
var tx_1 = require("./tx");
var orders = new Map();
/**
* Example:
* ```
const order = await createOrder({
pay_to: "BSzG62Khqw5pbbWPmoe8iZekExekFQBJmjYhiXhcVvtS",
coin_type: "SOL", // Optional: "USDT", "USDC"
coin_amount: 0.00001,
timeout: 60_000,
});
* ```
* @see {@link orderPaid()}
*/
function createOrder(config) {
return __awaiter(this, void 0, void 0, function () {
var id, payTo, resolve, reject, timeout, account, _a, balance, lastTx, subscription;
var _this = this;
var _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
id = (0, uuid_1.v7)(), payTo = new web3_js_1.PublicKey(config.pay_to);
orders.set(id, new Promise(function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
return resolve = args[0], reject = args[1], args;
}));
if (!(config.coin_type == "SOL")) return [3 /*break*/, 1];
_a = payTo;
return [3 /*break*/, 3];
case 1: return [4 /*yield*/, (0, coin_1.getATA)(payTo, config.coin_type)];
case 2:
_a = _c.sent();
_c.label = 3;
case 3:
account = _a;
return [4 /*yield*/, (0, coin_1.getCoinBalance)(payTo, config.coin_type, config.commitment)];
case 4:
balance = _c.sent();
return [4 /*yield*/, (0, connection_1.getConnection)().getSignaturesForAddress(account, { limit: 1 })];
case 5:
lastTx = (_b = (_c.sent())[0]) === null || _b === void 0 ? void 0 : _b.signature;
subscription = (0, connection_1.getConnection)().onAccountChange(account, function (accountInfo, context) { return __awaiter(_this, void 0, void 0, function () {
var balanceUpdated, balanceChange, txs, tx, parsedTx, change;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!accountInfo) return [3 /*break*/, 5];
return [4 /*yield*/, (0, coin_1.getCoinBalance)(payTo, config.coin_type, config.commitment)];
case 1:
balanceUpdated = _b.sent();
balanceChange = balanceUpdated - balance;
balance = balanceUpdated;
if (balanceChange < config.coin_amount)
return [2 /*return*/];
return [4 /*yield*/, (0, connection_1.getConnection)().getSignaturesForAddress(account, { until: lastTx }, config.commitment)];
case 2:
txs = _b.sent();
lastTx = ((_a = txs[0]) === null || _a === void 0 ? void 0 : _a.signature) || lastTx;
tx = txs.find(function (tx) { var _a, _b; return ((_b = (_a = tx.memo) === null || _a === void 0 ? void 0 : _a.match(/^\[\d+\] (.*)/)) === null || _b === void 0 ? void 0 : _b[1]) == id; });
if (!tx) return [3 /*break*/, 5];
return [4 /*yield*/, (0, connection_1.getConnection)().getParsedTransaction(tx.signature, config.commitment)];
case 3:
parsedTx = _b.sent();
if (!parsedTx) return [3 /*break*/, 5];
return [4 /*yield*/, (0, tx_1.parseTxBalanceChange)(parsedTx, payTo, config.coin_type)];
case 4:
change = _b.sent();
if (change < config.coin_amount)
return [2 /*return*/];
resolve(parsedTx);
(0, connection_1.getConnection)().removeAccountChangeListener(subscription);
clearTimeout(timeout);
_b.label = 5;
case 5: return [2 /*return*/];
}
});
}); }, { commitment: config.commitment });
timeout = setTimeout(function () {
(0, connection_1.getConnection)().removeAccountChangeListener(subscription);
reject(new Error("timeout"));
}, config.timeout);
return [2 /*return*/, {
id: id,
info: config,
}];
}
});
});
}
/**
* Example:
* ```
* const parsedTransactionWithMeta = await orderPaid(order);
*
* if (parsedTransactionWithMeta) {
* const signature = parsedTransactionWithMeta.transaction.signatures[0];
* }
* ```
* @see {@link createOrder()}
*/
function orderPaid(order) {
return __awaiter(this, void 0, void 0, function () {
var parsedTransactionWithMeta, err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, 3, 4]);
return [4 /*yield*/, orders.get(order.id)];
case 1:
parsedTransactionWithMeta = _a.sent();
return [2 /*return*/, parsedTransactionWithMeta];
case 2:
err_1 = _a.sent();
// Timeout, unpaid
return [2 /*return*/, undefined];
case 3:
orders.delete(order.id);
return [7 /*endfinally*/];
case 4: return [2 /*return*/];
}
});
});
}