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66 lines
2.6 KiB
66 lines
2.6 KiB
import { getErrorMessage, } from './helpers';
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var HistoryProvider = /** @class */ (function () {
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function HistoryProvider(datafeedUrl, requester) {
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this._datafeedUrl = datafeedUrl;
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this._requester = requester;
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}
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HistoryProvider.prototype.getBars = function (symbolInfo, resolution, rangeStartDate, rangeEndDate) {
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var _this = this;
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var requestParams = {
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symbol: symbolInfo.ticker || '',
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resolution: resolution,
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from: rangeStartDate,
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to: rangeEndDate,
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};
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return new Promise(function (resolve, reject) {
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_this._requester.sendRequest(_this._datafeedUrl, 'history', requestParams)
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.then(function (response) {
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if (response.s !== 'ok' && response.s !== 'no_data') {
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reject(response.errmsg);
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return;
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}
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var bars = [];
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var meta = {
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noData: false,
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};
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if (response.s === 'no_data') {
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meta.noData = true;
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meta.nextTime = response.nextTime;
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}
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else {
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var volumePresent = response.v !== undefined;
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var ohlPresent = response.o !== undefined;
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for (var i = 0; i < response.t.length; ++i) {
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var barValue = {
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time: response.t[i] * 1000,
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close: Number(response.c[i]),
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open: Number(response.c[i]),
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high: Number(response.c[i]),
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low: Number(response.c[i]),
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};
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if (ohlPresent) {
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barValue.open = Number(response.o[i]);
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barValue.high = Number(response.h[i]);
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barValue.low = Number(response.l[i]);
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}
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if (volumePresent) {
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barValue.volume = Number(response.v[i]);
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}
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bars.push(barValue);
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}
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}
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resolve({
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bars: bars,
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meta: meta,
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});
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})
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.catch(function (reason) {
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var reasonString = getErrorMessage(reason);
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console.warn("HistoryProvider: getBars() failed, error=" + reasonString);
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reject(reasonString);
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});
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});
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};
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return HistoryProvider;
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}());
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export { HistoryProvider };
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