@exchanges/binance
Version:
Exchange provider for Binance API
50 lines • 2.86 kB
JavaScript
;
var __rest = (this && this.__rest) || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function")
for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
t[p[i]] = s[p[i]];
}
return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.diffBookDepthStreams = void 0;
const apiCall_1 = require("../../../apiCall");
const safe_parsing_1 = require("@berish/safe-parsing");
function diffBookDepthStreams(client, symbol, updateSpeed, callback) {
if (!symbol)
throw new TypeError('diffBookDepthStreams symbol is empty');
if (typeof symbol !== 'string')
throw new TypeError('diffBookDepthStreams symbol is not string');
if (!updateSpeed)
throw new TypeError('diffBookDepthStreams updateSpeed is empty');
if (updateSpeed !== '100ms' && updateSpeed !== '250ms' && updateSpeed !== '500ms')
throw new TypeError('diffBookDepthStreams updateSpeed is not 100ms, 250ms or 500ms');
const parseCallback = callback &&
((data, error) => {
if (error)
return callback(void 0, error);
const response = (0, safe_parsing_1.parse)(data, (_a) => {
var { e, E, T, s, ps, U, u, pu, b, a } = _a, other = __rest(_a, ["e", "E", "T", "s", "ps", "U", "u", "pu", "b", "a"]);
return (Object.assign({ eventTime: (0, safe_parsing_1.parse)(E, safe_parsing_1.dateParser), transactionTime: (0, safe_parsing_1.parse)(T, safe_parsing_1.dateParser), symbol: s, pair: ps, firstUpdateIdInEvent: U, finalUpdateIdInEvent: u, finalUpdateIdInLastStream: pu, bids: (0, safe_parsing_1.parseArray)(b, ([price, quantity]) => ({
price: (0, safe_parsing_1.parse)(price, safe_parsing_1.numberParser),
quantity: (0, safe_parsing_1.parse)(quantity, safe_parsing_1.numberParser),
})), asks: (0, safe_parsing_1.parseArray)(a, ([price, quantity]) => ({
price: (0, safe_parsing_1.parse)(price, safe_parsing_1.numberParser),
quantity: (0, safe_parsing_1.parse)(quantity, safe_parsing_1.numberParser),
})) }, other));
});
return callback(response);
});
return (0, apiCall_1.apiCall)({
host: 'coinM',
path: `${symbol.toLowerCase()}@depth${updateSpeed === '250ms' ? '' : `@${updateSpeed}`}`,
securityType: 'SOCKET',
client,
}, parseCallback);
}
exports.diffBookDepthStreams = diffBookDepthStreams;
//# sourceMappingURL=diffBookDepthStreams.js.map