Function resolveNode

packages/router/src/operators/resolve_data.ts:101–127

(
  resolve: ResolveData,
  futureARS: ActivatedRouteSnapshot,
  futureRSS: RouterStateSnapshot,
)

}

function resolveNode(
  resolve: ResolveData,
  futureARS: ActivatedRouteSnapshot,
  futureRSS: RouterStateSnapshot,
): Observable<any> {
  const keys = getDataKeys(resolve);
  if (keys.length === 0) {
    return of({});
  }
  const data: {[k: string | symbol]: any} = {};
  return from(keys).pipe(
    mergeMap((key) =>
      getResolver(resolve[key], futureARS, futureRSS).pipe(
        first(),
        tap((value: any) => {
          if (value instanceof RedirectCommand) {
            throw redirectingNavigationError(new DefaultUrlSerializer(), value);
          }
          data[key] = value;
        }),
      ),
    ),
    takeLast(1),
    map(() => data),
    catchError((e: unknown) => (isEmptyError(e as Error) ? EMPTY : throwError(e))),
  );
}

function getResolver(
  injectionToken: ProviderToken<any> | Function,