request.js
1.32 KB
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function parseJSON(response) {
return response.json();
}
function checkStatus(response) {
if (response.status >= 200 && response.status < 300) {
return response;
}
const error = new Error(response.statusText);
error.response = response;
throw error;
}
const fetchLoading = () => {
const fetchCount = new CustomEvent('fetchCount', {
detail: { value: window.fetchCount },
});
window.dispatchEvent(fetchCount);
};
/**
* Requests a URL, returning a promise.
*
* @param {string} url The URL we want to request
* @param {object} [options] The options we want to pass to "fetch"
* @return {object} An object containing either "data" or "err"
*/
export default function request(url, options) {
// if (window.fetchCount > 0) {
// window.fetchCount += 1;
// } else {
// window.fetchCount = 1;
// fetchLoading();
// }
return fetch(url, options)
.then(checkStatus)
.then(parseJSON)
.then((data) => {
console.log('=====data', data);
// window.fetchCount -= 1;
// if (window.fetchCount <= 0) {
// fetchLoading();
// }
return { data };
})
.catch((err) => {
console.log('=====err', err);
window.fetchCount -= 1;
// if (window.fetchCount <= 0) {
// fetchLoading();
// }
return { err };
});
}