57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
const axios = require('axios');
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/**
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* Checks that the url is correct or not
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* @param newUrl
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* @returns {boolean}
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*/
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function checkUrl(newUrl) {
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try {
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new URL(newUrl);
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}
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catch (_) {
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return false;
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}
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return true;
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}
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/**
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* Makes a request to a specific url returning a promise
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* @param newUrl
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* @returns {*|AxiosPromise}
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*/
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function doRequestUrl(newUrl) {
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if (!checkUrl(newUrl)) Promise.reject('ERROR:Invalid url');
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return axios(newUrl);
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}
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/**
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* Requests multiple urls from a list of urls
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* @param listArray
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* @returns {Promise<never>|Promise<number[]>|Promise<*[]>}
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*/
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function requestMultipleUrls(listArray) {
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// ensure parameter is not missing
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if (arguments.length === 0 || listArray === null ) return Promise.reject('ERROR:Missing listArray');
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// ensure parameter is an array
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if (!Array.isArray(listArray)) return Promise.reject('ERROR:listArray should be an array');
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// quick exit if there is an array but it is empty
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if (listArray.length === 0) return Promise.resolve([]);
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const data = listArray.map((itemUrl) => doRequestUrl(itemUrl).then(res => {
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// There is no major error so return the data object
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return res.data;
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}).catch(err => {
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// reduce the error object to a smaller error message
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return { 'url':err.config.url, 'status':err.response.status, 'statusText':err.response.statusText };
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}));
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return Promise.all(data);
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}
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module.exports = requestMultipleUrls;
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