33 lines
907 B
JavaScript
33 lines
907 B
JavaScript
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const AjaxCache = {
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internalStorage: { },
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get(endpoint) {
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return this.internalStorage[endpoint];
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},
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hasData(endpoint) {
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return Object.prototype.hasOwnProperty.call(this.internalStorage, endpoint);
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},
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purge(endpoint) {
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delete this.internalStorage[endpoint];
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},
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retrieve(endpoint) {
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if (AjaxCache.hasData(endpoint)) {
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return Promise.resolve(AjaxCache.get(endpoint));
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}
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return new Promise((resolve, reject) => {
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$.ajax(endpoint) // eslint-disable-line promise/catch-or-return
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.then(data => resolve(data),
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(jqXHR, textStatus, errorThrown) => {
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const error = new Error(`${endpoint}: ${errorThrown}`);
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error.textStatus = textStatus;
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reject(error);
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},
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);
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})
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.then((data) => { this.internalStorage[endpoint] = data; })
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.then(() => AjaxCache.get(endpoint));
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},
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};
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export default AjaxCache;
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