39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
"use strict";
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import Config from './Config.mjs';
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import GetFromUrl from './Helpers/GetFromUrl.mjs';
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class ReadingsData {
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constructor() {
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}
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/**
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* Fetches the data from all currently active devices at a given datetime
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* and for a given reading type.
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* @param {string} reading_type The reading type to fetch data for.
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* @param {String|Date} [datetime="now"] The datetime to fetch the data for.
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* @return {Promise<Map>} A promise that resolves to a Map keyed by device IDs that contains the data objects returned by the fetch-data API action.
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*/
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async fetch(reading_type, datetime = "now") {
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if(datetime instanceof Date)
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datetime = datetime.toISOString();
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// TODO: memoize this
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let data = await this.__make_request(reading_type, datetime);
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let result = new Map();
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for(let item of data)
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result.set(item.device_id, item);
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return result;
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}
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async __make_request(reading_type, datetime) {
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return JSON.parse(await GetFromUrl(
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`${Config.api_root}?action=fetch-data&datetime=${encodeURIComponent(datetime)}&reading_type=${encodeURIComponent(reading_type)}`
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));
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}
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}
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export default ReadingsData;
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