Add httpClient option to httpResource #62616
Description
Which @angular/* package(s) are relevant/related to the feature request?
common
Description
In our project we use modular HttpClient with different setup of interceptors for accessing different API's.
We create createHttpClient helper for that:
export function createHttpClient(...features: HttpFeature<HttpFeatureKind>[]): HttpClient {
assertInInjectionContext(createHttpClient);
const injector = createEnvironmentInjector(
[provideHttpClient(...features)],
inject(EnvironmentInjector),
);
return injector.get(HttpClient);
}And we use this helper inside {provide: CUSTOM_HTTP_CLIENT_TOKEN, useFactory: () => createHttpClient()}.
It works until we migrate to httpResource, because there is no way to specify what instance of HttpClient should be used.
Proposed solution
Add option httpClient?: HttpClient to HttpResourceOptions.
Alternatives considered
Create custom injection context, and run httpResource inside it:
function bindHttpResource<T>(resourceFactory: () => HttpResourceRef<T>, httpClientToken: InjectionToken<HttpClient>): HttpResourceRef<T> {
assertInInjectionContext(bindHttpResource);
const injector = Injector.create({
providers: [{
provide: HttpClient,
useExisting: httpClientToken,
}],
parent: inject(Injector),
});
return runInInjectionContext(injector, resourceFactory);
}