forked from vergnet/application-amicale
61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
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/**
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* Class used to get json data from the web
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*/
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export default class WebDataManager {
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FETCH_URL: string;
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lastDataFetched: Object = {};
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constructor(url) {
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this.FETCH_URL = url;
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}
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/**
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* Read data from FETCH_URL and return it.
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* If no data was found, returns an empty object
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*
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* @return {Promise<Object>}
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*/
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async readData() {
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let fetchedData: Object = {};
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try {
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let response = await fetch(this.FETCH_URL);
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fetchedData = await response.json();
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} catch (error) {
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// console.log('Could not read FetchedData from server');
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// console.log(error);
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throw new Error('Could not read FetchedData from server');
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}
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this.lastDataFetched = fetchedData;
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return fetchedData;
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}
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/**
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* Detects if the fetched data is not an empty object
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*
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* @return
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*/
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isDataObjectValid(): boolean {
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return Object.keys(this.lastDataFetched).length > 0;
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}
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/**
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* Show a toast message depending on the validity of the fetched data
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*
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* @param errorString
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*/
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showUpdateToast(errorString) {
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// let isSuccess = this.isDataObjectValid();
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// if (!isSuccess) {
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// Toast.show({
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// text: errorString,
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// buttonText: 'OK',
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// type: isSuccess ? "success" : "danger",
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// duration: 2000
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// });
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// }
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}
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}
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