41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
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import { Observable } from '../../Observable';
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export function fromFetch(input, init) {
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return new Observable(subscriber => {
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const controller = new AbortController();
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const signal = controller.signal;
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let outerSignalHandler;
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let abortable = true;
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let unsubscribed = false;
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if (init) {
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if (init.signal) {
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outerSignalHandler = () => {
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if (!signal.aborted) {
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controller.abort();
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}
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};
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init.signal.addEventListener('abort', outerSignalHandler);
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}
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init.signal = signal;
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}
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else {
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init = { signal };
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}
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fetch(input, init).then(response => {
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abortable = false;
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subscriber.next(response);
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subscriber.complete();
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}).catch(err => {
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abortable = false;
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if (!unsubscribed) {
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subscriber.error(err);
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}
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});
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return () => {
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unsubscribed = true;
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if (abortable) {
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controller.abort();
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}
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};
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});
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}
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//# sourceMappingURL=fetch.js.map
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