54 lines
2 KiB
JavaScript
54 lines
2 KiB
JavaScript
|
import { __assign, __rest } from "tslib";
|
||
|
|
import { createOperatorSubscriber } from '../../operators/OperatorSubscriber';
|
||
|
|
import { Observable } from '../../Observable';
|
||
|
|
import { innerFrom } from '../../observable/innerFrom';
|
||
|
|
export function fromFetch(input, initWithSelector) {
|
||
|
|
if (initWithSelector === void 0) { initWithSelector = {}; }
|
||
|
|
var selector = initWithSelector.selector, init = __rest(initWithSelector, ["selector"]);
|
||
|
|
return new Observable(function (subscriber) {
|
||
|
|
var controller = new AbortController();
|
||
|
|
var signal = controller.signal;
|
||
|
|
var abortable = true;
|
||
|
|
var outerSignal = init.signal;
|
||
|
|
if (outerSignal) {
|
||
|
|
if (outerSignal.aborted) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
var outerSignalHandler_1 = function () {
|
||
|
|
if (!signal.aborted) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
outerSignal.addEventListener('abort', outerSignalHandler_1);
|
||
|
|
subscriber.add(function () { return outerSignal.removeEventListener('abort', outerSignalHandler_1); });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var perSubscriberInit = __assign(__assign({}, init), { signal: signal });
|
||
|
|
var handleError = function (err) {
|
||
|
|
abortable = false;
|
||
|
|
subscriber.error(err);
|
||
|
|
};
|
||
|
|
fetch(input, perSubscriberInit)
|
||
|
|
.then(function (response) {
|
||
|
|
if (selector) {
|
||
|
|
innerFrom(selector(response)).subscribe(createOperatorSubscriber(subscriber, undefined, function () {
|
||
|
|
abortable = false;
|
||
|
|
subscriber.complete();
|
||
|
|
}, handleError));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
abortable = false;
|
||
|
|
subscriber.next(response);
|
||
|
|
subscriber.complete();
|
||
|
|
}
|
||
|
|
})
|
||
|
|
.catch(handleError);
|
||
|
|
return function () {
|
||
|
|
if (abortable) {
|
||
|
|
controller.abort();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
});
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=fetch.js.map
|