Which @angular/* package(s) are relevant/related to the feature request?

core

Description

Currently, rxResource's request function doesn't support returning an Observable that can trigger the loader function when new values are emitted.

Workaround:

const dataService = inject(DataService);
const click$ = new Subject<MouseEvent>();
const click = toSignal(click$, { initialValue: null });
const data = rxResource({
  request: click,
  loader: ({ request }) =>
    request ? dataService.getData() : of(null),
});

Proposed solution

Allow request to return an Observable, where each emission triggers the loader function:

const dataService = inject(DataService);
const click$ = new Subject<MouseEvent>();
const data = rxResource({
  request: () => click$,
  loader: () => dataService.getData(),
});

Benefits:

• More reactive control over loader triggers
• Better integration with event-based workflows
• Reduced boilerplate when working with Observables

Alternatives considered

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