72 lines
2.6 KiB
JavaScript
72 lines
2.6 KiB
JavaScript
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/** PURE_IMPORTS_START tslib,_.._Observable,_.._Subscription,_.._observable_from PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { Observable } from '../../Observable';
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import { Subscription } from '../../Subscription';
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import { from } from '../../observable/from';
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export function fromFetch(input, initWithSelector) {
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if (initWithSelector === void 0) {
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initWithSelector = {};
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}
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var selector = initWithSelector.selector, init = tslib_1.__rest(initWithSelector, ["selector"]);
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return new Observable(function (subscriber) {
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var controller = new AbortController();
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var signal = controller.signal;
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var abortable = true;
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var unsubscribed = false;
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var subscription = new Subscription();
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subscription.add(function () {
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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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var perSubscriberInit;
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if (init) {
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if (init.signal) {
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if (init.signal.aborted) {
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controller.abort();
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}
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else {
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var outerSignal_1 = init.signal;
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var outerSignalHandler_1 = function () {
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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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outerSignal_1.addEventListener('abort', outerSignalHandler_1);
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subscription.add(function () { return outerSignal_1.removeEventListener('abort', outerSignalHandler_1); });
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}
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}
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perSubscriberInit = tslib_1.__assign({}, init, { signal: signal });
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}
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else {
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perSubscriberInit = { signal: signal };
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}
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fetch(input, perSubscriberInit).then(function (response) {
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if (selector) {
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subscription.add(from(selector(response)).subscribe(function (value) { return subscriber.next(value); }, function (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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}, function () {
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abortable = false;
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subscriber.complete();
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}));
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}
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else {
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abortable = false;
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subscriber.next(response);
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subscriber.complete();
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}
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}).catch(function (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 subscription;
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});
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}
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//# sourceMappingURL=fetch.js.map
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