(function (global, factory) { typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : typeof define === 'function' && define.amd ? define(['exports'], factory) : (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Datafeeds = {})); }(this, (function (exports) { 'use strict'; /** * If you want to enable logs from datafeed set it to `true` */ function logMessage(message) { } function getErrorMessage(error) { if (error === undefined) { return ''; } else if (typeof error === 'string') { return error; } return error.message; } class HistoryProvider { constructor(datafeedUrl, requester, limitedServerResponse) { this._datafeedUrl = datafeedUrl; this._requester = requester; this._limitedServerResponse = limitedServerResponse; this.bars_result = new Map(); } getBars(symbolInfo, resolution, periodParams) { const requestParams = { symbol: symbolInfo.ticker || '', resolution: resolution, from: periodParams.from, to: periodParams.to, }; if (periodParams.countBack !== undefined) { requestParams.countback = periodParams.countBack; } if (periodParams.firstDataRequest !== undefined) { requestParams.firstDataRequest = periodParams.firstDataRequest; } if (symbolInfo.currency_code !== undefined) { requestParams.currencyCode = symbolInfo.currency_code; } if (symbolInfo.unit_id !== undefined) { requestParams.unitId = symbolInfo.unit_id; } return new Promise(async (resolve, reject) => { try { const initialResponse = await this._requester.sendRequest(this._datafeedUrl, 'history', requestParams); const result = this._processHistoryResponse(initialResponse, requestParams); if (this._limitedServerResponse) { await this._processTruncatedResponse(result, requestParams); } resolve(result); } catch (e) { if (e instanceof Error || typeof e === 'string') { const reasonString = getErrorMessage(e); // tslint:disable-next-line:no-console console.warn(`HistoryProvider: getBars() failed, error=${reasonString}`); reject(reasonString); } } }); } async _processTruncatedResponse(result, requestParams) { let lastResultLength = result.bars.length; try { while (this._limitedServerResponse && this._limitedServerResponse.maxResponseLength > 0 && this._limitedServerResponse.maxResponseLength === lastResultLength && requestParams.from < requestParams.to) { // adjust request parameters for follow-up request if (requestParams.countback) { requestParams.countback = requestParams.countback - lastResultLength; } if (this._limitedServerResponse.expectedOrder === 'earliestFirst') { requestParams.from = Math.round(result.bars[result.bars.length - 1].time / 1000); } else { requestParams.to = Math.round(result.bars[0].time / 1000); } const followupResponse = await this._requester.sendRequest(this._datafeedUrl, 'history', requestParams); const followupResult = this._processHistoryResponse(followupResponse, requestParams); lastResultLength = followupResult.bars.length; // merge result with results collected so far if (this._limitedServerResponse.expectedOrder === 'earliestFirst') { if (followupResult.bars[0].time === result.bars[result.bars.length - 1].time) { // Datafeed shouldn't include a value exactly matching the `to` timestamp but in case it does // we will remove the duplicate. followupResult.bars.shift(); } result.bars.push(...followupResult.bars); } else { if (followupResult.bars[followupResult.bars.length - 1].time === result.bars[0].time) { // Datafeed shouldn't include a value exactly matching the `to` timestamp but in case it does // we will remove the duplicate. followupResult.bars.pop(); } result.bars.unshift(...followupResult.bars); } } } catch (e) { /** * Error occurred during followup request. We won't reject the original promise * because the initial response was valid so we will return what we've got so far. */ if (e instanceof Error || typeof e === 'string') { const reasonString = getErrorMessage(e); // tslint:disable-next-line:no-console console.warn(`HistoryProvider: getBars() warning during followup request, error=${reasonString}`); } } } _processHistoryResponse(response, requestParams) { if (response.s !== 'ok' && response.s !== 'no_data') { throw new Error(response.errmsg); } const bars = []; const meta = { noData: false, }; let fxs = []; let bis = []; let xds = []; let zsds = []; let bi_zss = []; let xd_zss = []; let zsd_zss = []; let bcs = []; let mmds = []; let result = { bars: bars, meta: meta, fxs: fxs, bis: bis, xds: xds, zsds: zsds, bi_zss: bi_zss, xd_zss: xd_zss, zsd_zss: zsd_zss, bcs: bcs, mmds: mmds, }; if (response.s === 'no_data') { meta.noData = true; meta.nextTime = response.nextTime; } else { const volumePresent = response.v !== undefined; const ohlPresent = response.o !== undefined; fxs = response.fxs; bis = response.bis; xds = response.xds; zsds = response.zsds; bi_zss = response.bi_zss; xd_zss = response.xd_zss; zsd_zss = response.zsd_zss; bcs = response.bcs; mmds = response.mmds; for (let i = 0; i < response.t.length; ++i) { const barValue = { time: response.t[i] * 1000, close: parseFloat(response.c[i]), open: parseFloat(response.c[i]), high: parseFloat(response.c[i]), low: parseFloat(response.c[i]), }; if (ohlPresent) { barValue.open = parseFloat(response.o[i]); barValue.high = parseFloat(response.h[i]); barValue.low = parseFloat(response.l[i]); } if (volumePresent) { barValue.volume = parseFloat(response.v[i]); } bars.push(barValue); } let result = { bars: bars, meta: meta, fxs: fxs, bis: bis, xds: xds, zsds: zsds, bi_zss: bi_zss, xd_zss: xd_zss, zsd_zss: zsd_zss, bcs: bcs, mmds: mmds, }; let obj_res = this.bars_result.get(requestParams['symbol'].toString().toLowerCase()); if (obj_res == undefined) { let obj_res = new Map(); obj_res.set(requestParams['resolution'].toString().toLowerCase(), result); this.bars_result.set(requestParams['symbol'].toString().toLowerCase(), obj_res); } else { obj_res.set(requestParams['resolution'].toString().toLowerCase(), result); this.bars_result.set(requestParams['symbol'].toString().toLowerCase(), obj_res); } } return result; } } class DataPulseProvider { constructor(historyProvider, updateFrequency) { this._subscribers = {}; this._requestsPending = 0; this._historyProvider = historyProvider; setInterval(this._updateData.bind(this), updateFrequency); } subscribeBars(symbolInfo, resolution, newDataCallback, listenerGuid) { if (this._subscribers.hasOwnProperty(listenerGuid)) { return; } this._subscribers[listenerGuid] = { lastBarTime: null, listener: newDataCallback, resolution: resolution, symbolInfo: symbolInfo, }; logMessage(`DataPulseProvider: subscribed for #${listenerGuid} - {${symbolInfo.name}, ${resolution}}`); } unsubscribeBars(listenerGuid) { delete this._subscribers[listenerGuid]; } _updateData() { if (this._requestsPending > 0) { return; } this._requestsPending = 0; // eslint-disable-next-line guard-for-in for (const listenerGuid in this._subscribers) { this._requestsPending += 1; this._updateDataForSubscriber(listenerGuid) .then(() => { this._requestsPending -= 1; logMessage(`DataPulseProvider: data for #${listenerGuid} updated successfully, pending=${this._requestsPending}`); }) .catch((reason) => { this._requestsPending -= 1; logMessage(`DataPulseProvider: data for #${listenerGuid} updated with error=${getErrorMessage(reason)}, pending=${this._requestsPending}`); }); } } _updateDataForSubscriber(listenerGuid) { const subscriptionRecord = this._subscribers[listenerGuid]; const rangeEndTime = parseInt((Date.now() / 1000).toString()); // BEWARE: please note we really need 2 bars, not the only last one // see the explanation below. `10` is the `large enough` value to work around holidays const rangeStartTime = rangeEndTime - periodLengthSeconds(subscriptionRecord.resolution, 10); return this._historyProvider.getBars(subscriptionRecord.symbolInfo, subscriptionRecord.resolution, { from: rangeStartTime, to: rangeEndTime, countBack: 2, firstDataRequest: false, }) .then((result) => { this._onSubscriberDataReceived(listenerGuid, result); }); } _onSubscriberDataReceived(listenerGuid, result) { // means the subscription was cancelled while waiting for data if (!this._subscribers.hasOwnProperty(listenerGuid)) { return; } const bars = result.bars; if (bars.length === 0) { return; } const lastBar = bars[bars.length - 1]; const subscriptionRecord = this._subscribers[listenerGuid]; if (subscriptionRecord.lastBarTime !== null && lastBar.time < subscriptionRecord.lastBarTime) { return; } const isNewBar = subscriptionRecord.lastBarTime !== null && lastBar.time > subscriptionRecord.lastBarTime; // Pulse updating may miss some trades data (ie, if pulse period = 10 secods and new bar is started 5 seconds later after the last update, the // old bar's last 5 seconds trades will be lost). Thus, at fist we should broadcast old bar updates when it's ready. if (isNewBar) { if (bars.length < 2) { throw new Error('Not enough bars in history for proper pulse update. Need at least 2.'); } const previousBar = bars[bars.length - 2]; subscriptionRecord.listener(previousBar); } subscriptionRecord.lastBarTime = lastBar.time; subscriptionRecord.listener(lastBar); } } function periodLengthSeconds(resolution, requiredPeriodsCount) { let daysCount = 0; if (resolution === 'D' || resolution === '1D') { daysCount = requiredPeriodsCount; } else if (resolution === 'M' || resolution === '1M') { daysCount = 31 * requiredPeriodsCount; } else if (resolution === 'W' || resolution === '1W') { daysCount = 7 * requiredPeriodsCount; } else { daysCount = requiredPeriodsCount * parseInt(resolution) / (24 * 60); } return daysCount * 24 * 60 * 60; } class QuotesPulseProvider { constructor(quotesProvider) { this._subscribers = {}; this._requestsPending = 0; this._timers = null; this._quotesProvider = quotesProvider; } subscribeQuotes(symbols, fastSymbols, onRealtimeCallback, listenerGuid) { this._subscribers[listenerGuid] = { symbols: symbols, fastSymbols: fastSymbols, listener: onRealtimeCallback, }; this._createTimersIfRequired(); } unsubscribeQuotes(listenerGuid) { delete this._subscribers[listenerGuid]; if (Object.keys(this._subscribers).length === 0) { this._destroyTimers(); } } _createTimersIfRequired() { if (this._timers === null) { const fastTimer = window.setInterval(this._updateQuotes.bind(this, 1 /* SymbolsType.Fast */), 10000 /* UpdateTimeouts.Fast */); const generalTimer = window.setInterval(this._updateQuotes.bind(this, 0 /* SymbolsType.General */), 60000 /* UpdateTimeouts.General */); this._timers = { fastTimer, generalTimer }; } } _destroyTimers() { if (this._timers !== null) { clearInterval(this._timers.fastTimer); clearInterval(this._timers.generalTimer); this._timers = null; } } _updateQuotes(updateType) { if (this._requestsPending > 0) { return; } // eslint-disable-next-line guard-for-in for (const listenerGuid in this._subscribers) { this._requestsPending++; const subscriptionRecord = this._subscribers[listenerGuid]; this._quotesProvider.getQuotes(updateType === 1 /* SymbolsType.Fast */ ? subscriptionRecord.fastSymbols : subscriptionRecord.symbols) .then((data) => { this._requestsPending--; if (!this._subscribers.hasOwnProperty(listenerGuid)) { return; } subscriptionRecord.listener(data); logMessage(`QuotesPulseProvider: data for #${listenerGuid} (${updateType}) updated successfully, pending=${this._requestsPending}`); }) .catch((reason) => { this._requestsPending--; logMessage(`QuotesPulseProvider: data for #${listenerGuid} (${updateType}) updated with error=${getErrorMessage(reason)}, pending=${this._requestsPending}`); }); } } } function extractField(data, field, arrayIndex, valueIsArray) { const value = data[field]; if (Array.isArray(value) && (!valueIsArray || Array.isArray(value[0]))) { return value[arrayIndex]; } return value; } function symbolKey(symbol, currency, unit) { // here we're using a separator that quite possible shouldn't be in a real symbol name return symbol + (currency !== undefined ? '_%|#|%_' + currency : '') + (unit !== undefined ? '_%|#|%_' + unit : ''); } class SymbolsStorage { constructor(datafeedUrl, datafeedSupportedResolutions, requester) { this._exchangesList = ['NYSE', 'FOREX', 'AMEX']; this._symbolsInfo = {}; this._symbolsList = []; this._datafeedUrl = datafeedUrl; this._datafeedSupportedResolutions = datafeedSupportedResolutions; this._requester = requester; this._readyPromise = this._init(); this._readyPromise.catch((error) => { // seems it is impossible // tslint:disable-next-line:no-console console.error(`SymbolsStorage: Cannot init, error=${error.toString()}`); }); } // BEWARE: this function does not consider symbol's exchange resolveSymbol(symbolName, currencyCode, unitId) { return this._readyPromise.then(() => { const symbolInfo = this._symbolsInfo[symbolKey(symbolName, currencyCode, unitId)]; if (symbolInfo === undefined) { return Promise.reject('invalid symbol'); } return Promise.resolve(symbolInfo); }); } searchSymbols(searchString, exchange, symbolType, maxSearchResults) { return this._readyPromise.then(() => { const weightedResult = []; const queryIsEmpty = searchString.length === 0; searchString = searchString.toUpperCase(); for (const symbolName of this._symbolsList) { const symbolInfo = this._symbolsInfo[symbolName]; if (symbolInfo === undefined) { continue; } if (symbolType.length > 0 && symbolInfo.type !== symbolType) { continue; } if (exchange && exchange.length > 0 && symbolInfo.exchange !== exchange) { continue; } const positionInName = symbolInfo.name.toUpperCase().indexOf(searchString); const positionInDescription = symbolInfo.description.toUpperCase().indexOf(searchString); if (queryIsEmpty || positionInName >= 0 || positionInDescription >= 0) { const alreadyExists = weightedResult.some((item) => item.symbolInfo === symbolInfo); if (!alreadyExists) { const weight = positionInName >= 0 ? positionInName : 8000 + positionInDescription; weightedResult.push({ symbolInfo: symbolInfo, weight: weight }); } } } const result = weightedResult .sort((item1, item2) => item1.weight - item2.weight) .slice(0, maxSearchResults) .map((item) => { const symbolInfo = item.symbolInfo; return { symbol: symbolInfo.name, full_name: symbolInfo.full_name, description: symbolInfo.description, exchange: symbolInfo.exchange, params: [], type: symbolInfo.type, ticker: symbolInfo.name, }; }); return Promise.resolve(result); }); } _init() { const promises = []; const alreadyRequestedExchanges = {}; for (const exchange of this._exchangesList) { if (alreadyRequestedExchanges[exchange]) { continue; } alreadyRequestedExchanges[exchange] = true; promises.push(this._requestExchangeData(exchange)); } return Promise.all(promises) .then(() => { this._symbolsList.sort(); }); } _requestExchangeData(exchange) { return new Promise((resolve, reject) => { this._requester.sendRequest(this._datafeedUrl, 'symbol_info', { group: exchange }) .then((response) => { try { this._onExchangeDataReceived(exchange, response); } catch (error) { reject(error instanceof Error ? error : new Error(`SymbolsStorage: Unexpected exception ${error}`)); return; } resolve(); }) .catch((reason) => { logMessage(`SymbolsStorage: Request data for exchange '${exchange}' failed, reason=${getErrorMessage(reason)}`); resolve(); }); }); } _onExchangeDataReceived(exchange, data) { let symbolIndex = 0; try { const symbolsCount = data.symbol.length; const tickerPresent = data.ticker !== undefined; for (; symbolIndex < symbolsCount; ++symbolIndex) { const symbolName = data.symbol[symbolIndex]; const listedExchange = extractField(data, 'exchange-listed', symbolIndex); const tradedExchange = extractField(data, 'exchange-traded', symbolIndex); const fullName = tradedExchange + ':' + symbolName; const currencyCode = extractField(data, 'currency-code', symbolIndex); const unitId = extractField(data, 'unit-id', symbolIndex); const ticker = tickerPresent ? extractField(data, 'ticker', symbolIndex) : symbolName; const symbolInfo = { ticker: ticker, name: symbolName, base_name: [listedExchange + ':' + symbolName], full_name: fullName, listed_exchange: listedExchange, exchange: tradedExchange, currency_code: currencyCode, original_currency_code: extractField(data, 'original-currency-code', symbolIndex), unit_id: unitId, original_unit_id: extractField(data, 'original-unit-id', symbolIndex), unit_conversion_types: extractField(data, 'unit-conversion-types', symbolIndex, true), description: extractField(data, 'description', symbolIndex), has_intraday: definedValueOrDefault(extractField(data, 'has-intraday', symbolIndex), false), visible_plots_set: definedValueOrDefault(extractField(data, 'visible-plots-set', symbolIndex), undefined), minmov: extractField(data, 'minmovement', symbolIndex) || extractField(data, 'minmov', symbolIndex) || 0, minmove2: extractField(data, 'minmove2', symbolIndex) || extractField(data, 'minmov2', symbolIndex), fractional: extractField(data, 'fractional', symbolIndex), pricescale: extractField(data, 'pricescale', symbolIndex), type: extractField(data, 'type', symbolIndex), session: extractField(data, 'session-regular', symbolIndex), session_holidays: extractField(data, 'session-holidays', symbolIndex), corrections: extractField(data, 'corrections', symbolIndex), timezone: extractField(data, 'timezone', symbolIndex), supported_resolutions: definedValueOrDefault(extractField(data, 'supported-resolutions', symbolIndex, true), this._datafeedSupportedResolutions), has_daily: definedValueOrDefault(extractField(data, 'has-daily', symbolIndex), true), intraday_multipliers: definedValueOrDefault(extractField(data, 'intraday-multipliers', symbolIndex, true), ['1', '5', '15', '30', '60']), has_weekly_and_monthly: extractField(data, 'has-weekly-and-monthly', symbolIndex), has_empty_bars: extractField(data, 'has-empty-bars', symbolIndex), volume_precision: definedValueOrDefault(extractField(data, 'volume-precision', symbolIndex), 0), format: 'price', }; this._symbolsInfo[ticker] = symbolInfo; this._symbolsInfo[symbolName] = symbolInfo; this._symbolsInfo[fullName] = symbolInfo; if (currencyCode !== undefined || unitId !== undefined) { this._symbolsInfo[symbolKey(ticker, currencyCode, unitId)] = symbolInfo; this._symbolsInfo[symbolKey(symbolName, currencyCode, unitId)] = symbolInfo; this._symbolsInfo[symbolKey(fullName, currencyCode, unitId)] = symbolInfo; } this._symbolsList.push(symbolName); } } catch (error) { throw new Error(`SymbolsStorage: API error when processing exchange ${exchange} symbol #${symbolIndex} (${data.symbol[symbolIndex]}): ${Object(error).message}`); } } } function definedValueOrDefault(value, defaultValue) { return value !== undefined ? value : defaultValue; } function extractField$1(data, field, arrayIndex) { const value = data[field]; return Array.isArray(value) ? value[arrayIndex] : value; } /** * This class implements interaction with UDF-compatible datafeed. * See [UDF protocol reference](@docs/connecting_data/UDF) */ class UDFCompatibleDatafeedBase { constructor(datafeedURL, quotesProvider, requester, updateFrequency = 10 * 1000, limitedServerResponse) { this._configuration = defaultConfiguration(); this._symbolsStorage = null; this._datafeedURL = datafeedURL; this._requester = requester; this._historyProvider = new HistoryProvider(datafeedURL, this._requester, limitedServerResponse); this._quotesProvider = quotesProvider; this._dataPulseProvider = new DataPulseProvider(this._historyProvider, updateFrequency); this._quotesPulseProvider = new QuotesPulseProvider(this._quotesProvider); this._configurationReadyPromise = this._requestConfiguration() .then((configuration) => { if (configuration === null) { configuration = defaultConfiguration(); } this._setupWithConfiguration(configuration); }); } onReady(callback) { this._configurationReadyPromise.then(() => { callback(this._configuration); }); } getQuotes(symbols, onDataCallback, onErrorCallback) { this._quotesProvider.getQuotes(symbols).then(onDataCallback).catch(onErrorCallback); } subscribeQuotes(symbols, fastSymbols, onRealtimeCallback, listenerGuid) { this._quotesPulseProvider.subscribeQuotes(symbols, fastSymbols, onRealtimeCallback, listenerGuid); } unsubscribeQuotes(listenerGuid) { this._quotesPulseProvider.unsubscribeQuotes(listenerGuid); } getMarks(symbolInfo, from, to, onDataCallback, resolution) { if (!this._configuration.supports_marks) { return; } const requestParams = { symbol: symbolInfo.ticker || '', from: from, to: to, resolution: resolution, }; this._send('marks', requestParams) .then((response) => { if (!Array.isArray(response)) { const result = []; for (let i = 0; i < response.id.length; ++i) { result.push({ id: extractField$1(response, 'id', i), time: extractField$1(response, 'time', i), color: extractField$1(response, 'color', i), text: extractField$1(response, 'text', i), label: extractField$1(response, 'label', i), labelFontColor: extractField$1(response, 'labelFontColor', i), minSize: extractField$1(response, 'minSize', i), borderWidth: extractField$1(response, 'borderWidth', i), hoveredBorderWidth: extractField$1(response, 'hoveredBorderWidth', i), imageUrl: extractField$1(response, 'imageUrl', i), showLabelWhenImageLoaded: extractField$1(response, 'showLabelWhenImageLoaded', i), }); } response = result; } onDataCallback(response); }) .catch((error) => { logMessage(`UdfCompatibleDatafeed: Request marks failed: ${getErrorMessage(error)}`); onDataCallback([]); }); } getTimescaleMarks(symbolInfo, from, to, onDataCallback, resolution) { if (!this._configuration.supports_timescale_marks) { return; } const requestParams = { symbol: symbolInfo.ticker || '', from: from, to: to, resolution: resolution, }; this._send('timescale_marks', requestParams) .then((response) => { if (!Array.isArray(response)) { const result = []; for (let i = 0; i < response.id.length; ++i) { result.push({ id: extractField$1(response, 'id', i), time: extractField$1(response, 'time', i), color: extractField$1(response, 'color', i), label: extractField$1(response, 'label', i), tooltip: extractField$1(response, 'tooltip', i), imageUrl: extractField$1(response, 'imageUrl', i), showLabelWhenImageLoaded: extractField$1(response, 'showLabelWhenImageLoaded', i), }); } response = result; } onDataCallback(response); }) .catch((error) => { logMessage(`UdfCompatibleDatafeed: Request timescale marks failed: ${getErrorMessage(error)}`); onDataCallback([]); }); } getServerTime(callback) { if (!this._configuration.supports_time) { return; } this._send('time') .then((response) => { const time = parseInt(response); if (!isNaN(time)) { callback(time); } }) .catch((error) => { logMessage(`UdfCompatibleDatafeed: Fail to load server time, error=${getErrorMessage(error)}`); }); } searchSymbols(userInput, exchange, symbolType, onResult) { if (this._configuration.supports_search) { const params = { limit: 30 /* Constants.SearchItemsLimit */, query: userInput.toUpperCase(), type: symbolType, exchange: exchange, }; this._send('search', params) .then((response) => { if (response.s !== undefined) { logMessage(`UdfCompatibleDatafeed: search symbols error=${response.errmsg}`); onResult([]); return; } onResult(response); }) .catch((reason) => { logMessage(`UdfCompatibleDatafeed: Search symbols for '${userInput}' failed. Error=${getErrorMessage(reason)}`); onResult([]); }); } else { if (this._symbolsStorage === null) { throw new Error('UdfCompatibleDatafeed: inconsistent configuration (symbols storage)'); } this._symbolsStorage.searchSymbols(userInput, exchange, symbolType, 30 /* Constants.SearchItemsLimit */) .then(onResult) .catch(onResult.bind(null, [])); } } resolveSymbol(symbolName, onResolve, onError, extension) { const currencyCode = extension && extension.currencyCode; const unitId = extension && extension.unitId; function onResultReady(symbolInfo) { onResolve(symbolInfo); } if (!this._configuration.supports_group_request) { const params = { symbol: symbolName, }; if (currencyCode !== undefined) { params.currencyCode = currencyCode; } if (unitId !== undefined) { params.unitId = unitId; } this._send('symbols', params) .then((response) => { var _a, _b, _c, _d, _e, _f, _g, _h, _j, _k, _l, _m, _o, _p, _q, _r, _s, _t, _u, _v, _w, _x, _y, _z, _0, _1, _2; if (response.s !== undefined) { onError('unknown_symbol'); } else { const symbol = response.name; const listedExchange = (_a = response.listed_exchange) !== null && _a !== void 0 ? _a : response['exchange-listed']; const tradedExchange = (_b = response.exchange) !== null && _b !== void 0 ? _b : response['exchange-traded']; const fullName = (_c = response.full_name) !== null && _c !== void 0 ? _c : `${tradedExchange}:${symbol}`; const result = { ...response, name: symbol, base_name: [listedExchange + ':' + symbol], full_name: fullName, listed_exchange: listedExchange, exchange: tradedExchange, currency_code: (_d = response.currency_code) !== null && _d !== void 0 ? _d : response['currency-code'], original_currency_code: (_e = response.original_currency_code) !== null && _e !== void 0 ? _e : response['original-currency-code'], unit_id: (_f = response.unit_id) !== null && _f !== void 0 ? _f : response['unit-id'], original_unit_id: (_g = response.original_unit_id) !== null && _g !== void 0 ? _g : response['original-unit-id'], unit_conversion_types: (_h = response.unit_conversion_types) !== null && _h !== void 0 ? _h : response['unit-conversion-types'], has_intraday: (_k = (_j = response.has_intraday) !== null && _j !== void 0 ? _j : response['has-intraday']) !== null && _k !== void 0 ? _k : false, visible_plots_set: (_l = response.visible_plots_set) !== null && _l !== void 0 ? _l : response['visible-plots-set'], minmov: (_o = (_m = response.minmovement) !== null && _m !== void 0 ? _m : response.minmov) !== null && _o !== void 0 ? _o : 0, minmove2: (_p = response.minmovement2) !== null && _p !== void 0 ? _p : response.minmove2, session: (_q = response.session) !== null && _q !== void 0 ? _q : response['session-regular'], session_holidays: (_r = response.session_holidays) !== null && _r !== void 0 ? _r : response['session-holidays'], supported_resolutions: (_u = (_t = (_s = response.supported_resolutions) !== null && _s !== void 0 ? _s : response['supported-resolutions']) !== null && _t !== void 0 ? _t : this._configuration.supported_resolutions) !== null && _u !== void 0 ? _u : [], has_daily: (_w = (_v = response.has_daily) !== null && _v !== void 0 ? _v : response['has-daily']) !== null && _w !== void 0 ? _w : true, intraday_multipliers: (_y = (_x = response.intraday_multipliers) !== null && _x !== void 0 ? _x : response['intraday-multipliers']) !== null && _y !== void 0 ? _y : ['1', '5', '15', '30', '60'], has_weekly_and_monthly: (_z = response.has_weekly_and_monthly) !== null && _z !== void 0 ? _z : response['has-weekly-and-monthly'], has_empty_bars: (_0 = response.has_empty_bars) !== null && _0 !== void 0 ? _0 : response['has-empty-bars'], volume_precision: (_1 = response.volume_precision) !== null && _1 !== void 0 ? _1 : response['volume-precision'], format: (_2 = response.format) !== null && _2 !== void 0 ? _2 : 'price', }; onResultReady(result); } }) .catch((reason) => { logMessage(`UdfCompatibleDatafeed: Error resolving symbol: ${getErrorMessage(reason)}`); onError('unknown_symbol'); }); } else { if (this._symbolsStorage === null) { throw new Error('UdfCompatibleDatafeed: inconsistent configuration (symbols storage)'); } this._symbolsStorage.resolveSymbol(symbolName, currencyCode, unitId).then(onResultReady).catch(onError); } } getBars(symbolInfo, resolution, periodParams, onResult, onError) { this._historyProvider.getBars(symbolInfo, resolution, periodParams) .then((result) => { onResult(result.bars, result.meta); }) .catch(onError); } subscribeBars(symbolInfo, resolution, onTick, listenerGuid, _onResetCacheNeededCallback) { this._dataPulseProvider.subscribeBars(symbolInfo, resolution, onTick, listenerGuid); } unsubscribeBars(listenerGuid) { this._dataPulseProvider.unsubscribeBars(listenerGuid); } _requestConfiguration() { return this._send('config') .catch((reason) => { logMessage(`UdfCompatibleDatafeed: Cannot get datafeed configuration - use default, error=${getErrorMessage(reason)}`); return null; }); } _send(urlPath, params) { return this._requester.sendRequest(this._datafeedURL, urlPath, params); } _setupWithConfiguration(configurationData) { this._configuration = configurationData; if (configurationData.exchanges === undefined) { configurationData.exchanges = []; } if (!configurationData.supports_search && !configurationData.supports_group_request) { throw new Error('Unsupported datafeed configuration. Must either support search, or support group request'); } if (configurationData.supports_group_request || !configurationData.supports_search) { this._symbolsStorage = new SymbolsStorage(this._datafeedURL, configurationData.supported_resolutions || [], this._requester); } logMessage(`UdfCompatibleDatafeed: Initialized with ${JSON.stringify(configurationData)}`); } } function defaultConfiguration() { return { supports_search: false, supports_group_request: true, supported_resolutions: [ '1', '5', '15', '30', '60', '1D', '1W', '1M', ], supports_marks: false, supports_timescale_marks: false, }; } class QuotesProvider { constructor(datafeedUrl, requester) { this._datafeedUrl = datafeedUrl; this._requester = requester; } getQuotes(symbols) { return new Promise((resolve, reject) => { this._requester.sendRequest(this._datafeedUrl, 'quotes', { symbols: symbols }) .then((response) => { if (response.s === 'ok') { resolve(response.d); } else { reject(response.errmsg); } }) .catch((error) => { const errorMessage = getErrorMessage(error); reject(`network error: ${errorMessage}`); }); }); } } class Requester { constructor(headers) { if (headers) { this._headers = headers; } } sendRequest(datafeedUrl, urlPath, params) { if (params !== undefined) { const paramKeys = Object.keys(params); if (paramKeys.length !== 0) { urlPath += '?'; } urlPath += paramKeys.map((key) => { return `${encodeURIComponent(key)}=${encodeURIComponent(params[key].toString())}`; }).join('&'); } // Send user cookies if the URL is on the same origin as the calling script. const options = { credentials: 'same-origin' }; if (this._headers !== undefined) { options.headers = this._headers; } // eslint-disable-next-line no-restricted-globals return fetch(`${datafeedUrl}/${urlPath}`, options) .then((response) => response.text()) .then((responseTest) => JSON.parse(responseTest)); } } class UDFCompatibleDatafeed extends UDFCompatibleDatafeedBase { constructor(datafeedURL, updateFrequency = 10 * 1000, limitedServerResponse) { const requester = new Requester(); const quotesProvider = new QuotesProvider(datafeedURL, requester); super(datafeedURL, quotesProvider, requester, updateFrequency, limitedServerResponse); } } exports.UDFCompatibleDatafeed = UDFCompatibleDatafeed; Object.defineProperty(exports, '__esModule', { value: true }); })));