41 lines
975 B
JavaScript
41 lines
975 B
JavaScript
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/**
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* @param {string} path
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* @return Promise<string>
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* @todo use Util.fetch instead?
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* @author svartoyg
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*/
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export async function read (path) {
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return (
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new Promise(
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(resolve, reject) => {
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let request = new XMLHttpRequest();
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request.open('GET', '/' + path, true);
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request.onreadystatechange = () => {
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switch (request.readyState) {
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case XMLHttpRequest.DONE: {
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switch (request.status) {
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case 0: {
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reject(new Error('XMLHttpRequest failed'));
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break;
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}
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default: {
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resolve(request.responseText);
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break;
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}
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}
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break;
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}
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default: {
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console.warn('unhandled readyState "' + request.readyState + '"');
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break;
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}
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}
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};
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request.send(null);
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}
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)
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);
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}
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