zumokit
Version:
ZumoKit is a Wallet as a Service SDK
319 lines (318 loc) • 14.4 kB
JavaScript
"use strict";
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());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ZumoKit = void 0;
var node_fetch_1 = require("node-fetch");
var ws_1 = require("ws");
var utility_1 = require("./utility");
var models_1 = require("./models");
var User_1 = require("./User");
var Utils_1 = require("./Utils");
var ZumoKitError_1 = require("./ZumoKitError");
/**
* ZumoKit instance. Refer to <a href="https://developers.zumo.money/docs/guides/initialize-zumokit">documentation</a> for usage details.
* */
var ZumoKit = /** @class */ (function () {
/** @internal */
function ZumoKit(zumoCoreModule, apiKey, apiUrl, transactionServiceUrl, cardServiceUrl, notificationServiceUrl, exchangeServiceUrl, custodyServiceUrl) {
var _this = this;
this.socket = null;
this.wsListener = null;
this.changeListeners = [];
this.changeListenersImpl = [];
this.disconnected = false;
/** Currently signed-in user or null. */
this.currentUser = null;
/** Mapping between currency pairs and available exchange rates. */
this.exchangeRates = {};
/** Mapping between cryptocurrencies and available transaction fee rates. */
this.transactionFeeRates = {};
this.zumoCoreModule = zumoCoreModule;
this.version = zumoCoreModule.ZumoCore.getVersion();
var boundedRequest = this.request.bind(this);
var httpImpl = new zumoCoreModule.HttpProviderWrapper({
request: function (url, method, headers, data, callback) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
boundedRequest(url, method, headers, data, callback);
return [2 /*return*/];
});
});
},
});
var boundedCreateWebSocket = this.createWebSocket.bind(this);
var wsFactory = new zumoCoreModule.WebSocketFactoryWrapper({
createWebSocket: function (url) {
return boundedCreateWebSocket(url);
},
});
this.zumoCore = new zumoCoreModule.ZumoCore(httpImpl, wsFactory, apiKey, apiUrl, transactionServiceUrl, cardServiceUrl, notificationServiceUrl, exchangeServiceUrl, custodyServiceUrl);
this.utils = new Utils_1.Utils(this.zumoCoreModule, this.zumoCore.getUtils());
this.addChangeListener(function () {
_this.exchangeRates = models_1.ExchangeRates(JSON.parse(_this.zumoCore.getExchangeRates()));
_this.transactionFeeRates = models_1.TransactionFeeRates(JSON.parse(_this.zumoCore.getTransactionFeeRates()));
});
}
ZumoKit.prototype.request = function (url, method, headers, data, callback) {
return __awaiter(this, void 0, void 0, function () {
var requestHeaders, mapKeys, i, key, response, result, exception_1, error, message;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
requestHeaders = {};
mapKeys = headers.keys();
for (i = 0; i < mapKeys.size(); i++) {
key = mapKeys.get(i);
requestHeaders[key] = headers.get(key);
}
_a.label = 1;
case 1:
_a.trys.push([1, 4, , 5]);
return [4 /*yield*/, node_fetch_1.default(url, {
method: method,
headers: requestHeaders,
body: data,
})];
case 2:
response = _a.sent();
return [4 /*yield*/, response.text()];
case 3:
result = _a.sent();
callback.onSuccess(response.status, result);
return [3 /*break*/, 5];
case 4:
exception_1 = _a.sent();
if (typeof exception_1 === 'number') {
error = new ZumoKitError_1.ZumoKitError(this.zumoCoreModule.getException(exception_1));
callback.onNetworkError(error.message);
}
else {
message = exception_1.message;
callback.onNetworkError(message);
}
return [3 /*break*/, 5];
case 5: return [2 /*return*/];
}
});
});
};
ZumoKit.prototype.connectWebSocket = function (url) {
var _this = this;
this.socket = new ws_1.WebSocket(url);
this.socket.on('open', function () {
var _a;
(_a = _this.wsListener) === null || _a === void 0 ? void 0 : _a.onOpen(url);
});
this.socket.on('message', function (event) {
var _a;
(_a = _this.wsListener) === null || _a === void 0 ? void 0 : _a.onMessage(event.toString());
});
this.socket.on('error', function () {
var _a, _b;
if (_this.disconnected) {
return;
}
(_a = _this.wsListener) === null || _a === void 0 ? void 0 : _a.onError('WebSocket error observed');
(_b = _this.socket) === null || _b === void 0 ? void 0 : _b.close();
});
this.socket.on('close', function (event) {
var _a;
if (_this.disconnected) {
return;
}
(_a = _this.wsListener) === null || _a === void 0 ? void 0 : _a.onClose("WebSocket connection closed with exit code " + event.code + ", additional info: " + event.reason);
// TODO: Reconnect via fuzzing back off generator
setTimeout(function () {
_this.connectWebSocket(url);
}, 5000);
});
};
ZumoKit.prototype.subscribe = function (listener) {
this.wsListener = listener;
};
ZumoKit.prototype.send = function (message) {
var _a;
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.send(message);
};
ZumoKit.prototype.createWebSocket = function (url) {
var boundedConnectWebSocket = this.connectWebSocket.bind(this);
var boundedSend = this.send.bind(this);
var boundedSubscribe = this.subscribe.bind(this);
return new this.zumoCoreModule.WebSocketWrapper({
connect: function () {
boundedConnectWebSocket(url);
},
send: function (message) {
boundedSend(message);
},
subscribe: function (listener) {
boundedSubscribe(listener);
},
});
};
/**
* Sets log level for current logger.
*
* @param logLevel log level, e.g. 'debug' or 'info'
*/
ZumoKit.prototype.setLogLevel = function (logLevel) {
this.zumoCoreModule.ZumoCore.setLogLevel(logLevel);
};
/**
* Sets log handler for all ZumoKit related logs.
*
* @param listener interface to listen to changes
* @param logLevel log level, e.g. 'debug' or 'info'
*/
ZumoKit.prototype.onLog = function (listener, logLevel) {
this.zumoCoreModule.ZumoCore.onLog(new this.zumoCoreModule.LogListenerWrapper({
onLog: function (message) {
listener(message);
},
}), logLevel);
};
/**
* Signs in user corresponding to user token set. Sets current user to the newly signed in user.
* Refer to <a href="https://developers.zumo.money/docs/setup/server#get-zumokit-user-token">Server</a> guide for details on how to get user token set.
*
* @param tokenSet user token set
*/
ZumoKit.prototype.signIn = function (userTokenSet) {
var _this = this;
return utility_1.errorProxy(this.zumoCoreModule, function (resolve, reject) {
_this.zumoCore.signIn(JSON.stringify(userTokenSet), new _this.zumoCoreModule.UserCallbackWrapper({
onError: function (error) {
reject(new ZumoKitError_1.ZumoKitError(error));
},
onSuccess: function (user) {
_this.currentUser = new User_1.User(_this.zumoCoreModule, user);
resolve(_this.currentUser);
},
}));
});
};
/** Signs out current user. */
ZumoKit.prototype.signOut = function () {
this.zumoCore.signOut();
this.currentUser = null;
};
/**
* Get exchange rate for selected currency pair.
*
* @param fromCurrency currency code
* @param toCurrency currency code
*
* @return exchange rate or null
*/
ZumoKit.prototype.getExchangeRate = function (fromCurrency, toCurrency) {
var exchangeRate = this.zumoCore.getExchangeRate(fromCurrency, toCurrency);
if (exchangeRate.hasValue())
return new models_1.ExchangeRate(JSON.parse(exchangeRate.get()));
return null;
};
/**
* Get transaction fee rate for selected crypto currency.
*
* @param currency currency code
*
* @return transaction fee rate or null
*/
ZumoKit.prototype.getTransactionFeeRate = function (currency) {
var feeRate = this.zumoCore.getTransactionFeeRate(currency);
if (feeRate.hasValue())
return new models_1.TransactionFeeRate(JSON.parse(feeRate.get()));
return null;
};
/**
* Fetch historical exchange rates for supported time intervals.
*
* @return historical exchange rates
*/
ZumoKit.prototype.fetchHistoricalExchangeRates = function () {
var _this = this;
return utility_1.errorProxy(this.zumoCoreModule, function (resolve, reject) {
_this.zumoCore.fetchHistoricalExchangeRates(new _this.zumoCoreModule.HistoricalExchangeRatesCallbackWrapper({
onError: function (error) {
reject(new ZumoKitError_1.ZumoKitError(error));
},
onSuccess: function (json) {
var historicalExchangeRatesJSON = JSON.parse(json);
resolve(models_1.HistoricalExchangeRates(historicalExchangeRatesJSON));
},
}));
});
};
/**
* Listen to changes in current user’s sign in state, exchange rates, exchange settings or transaction fee rates.
*
* @param listener interface to listen to changes
*/
ZumoKit.prototype.addChangeListener = function (listener) {
var listenerImpl = new this.zumoCoreModule.ChangeListenerWrapper({
onChange: function () {
listener();
},
});
this.zumoCore.addChangeListener(listenerImpl);
this.changeListeners.push(listener);
this.changeListenersImpl.push(listenerImpl);
};
/**
* Remove change listener.
*
* @param listener interface to listen to changes
*/
ZumoKit.prototype.removeChangeListener = function (listener) {
var index;
// eslint-disable-next-line no-cond-assign
while ((index = this.changeListeners.indexOf(listener)) !== -1) {
this.changeListeners.splice(index, 1);
this.zumoCore.removeChangeListener(this.changeListenersImpl.splice(index, 1)[0]);
}
};
/**
* Stops WebSocket connection to Zumo Enterprise services.
*/
ZumoKit.prototype.disconnect = function () {
var _a;
this.disconnected = true;
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.terminate();
};
return ZumoKit;
}());
exports.ZumoKit = ZumoKit;