mirror of
https://gerrit.wikimedia.org/r/mediawiki/skins/Vector.git
synced 2024-12-01 18:57:04 +00:00
080b6958e8
* Prefer dispatchEvent to $.trigger * Prefer Object.assign to $.extend * Prefer URLSearchParams to $.params * Prefer getAttribute / properties to $.attr * Prefer document.querySelectorAll over $.find Change-Id: I5f4464e5bfa11b401e663f0b8761fc6092380627
52 lines
1.2 KiB
JavaScript
52 lines
1.2 KiB
JavaScript
/**
|
|
* @typedef {Object} AbortableFetch
|
|
* @property {Promise<any>} fetch
|
|
* @property {Function} abort
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} NullableAbortController
|
|
* @property {AbortSignal | undefined} signal
|
|
* @property {Function} abort
|
|
*/
|
|
const nullAbortController = {
|
|
signal: undefined,
|
|
abort: () => {} // Do nothing (no-op)
|
|
};
|
|
|
|
/**
|
|
* A wrapper which combines native fetch() in browsers and the following json() call.
|
|
*
|
|
* @param {string} resource
|
|
* @param {RequestInit} [init]
|
|
* @return {AbortableFetch}
|
|
*/
|
|
function fetchJson( resource, init ) {
|
|
// As of 2020, browser support for AbortController is limited:
|
|
// https://caniuse.com/abortcontroller
|
|
// so replacing it with no-op if it doesn't exist.
|
|
const controller = window.AbortController ?
|
|
new AbortController() :
|
|
nullAbortController;
|
|
|
|
const getJson = fetch( resource, Object.assign( {}, init, {
|
|
signal: controller.signal
|
|
} ) ).then( ( response ) => {
|
|
if ( !response.ok ) {
|
|
return Promise.reject(
|
|
'Network request failed with HTTP code ' + response.status
|
|
);
|
|
}
|
|
return response.json();
|
|
} );
|
|
|
|
return {
|
|
fetch: getJson,
|
|
abort: () => {
|
|
controller.abort();
|
|
}
|
|
};
|
|
}
|
|
|
|
module.exports = fetchJson;
|