Merge pull request #135 from basics/feature/ts-updates

fix: handle null requests in autoPagination and improve error handling

Author: ThornWalli

packages/operators/src/request/autoPagination.ts

@@ -1,18 +1,29 @@
 import type { Observable } from 'rxjs';
 
-import { concatMap, expand, filter, from, map } from 'rxjs';
+import { concatMap, expand, filter, from, map, of, throwError } from 'rxjs';
 
 import { request } from '../request';
 
 export type ResolveRoute = (
   reqResp: Request | Response,
   response?: Response
-) => Observable<Request>;
+) => Observable<Request | null>;
 
 export function autoPagination({ resolveRoute }: { resolveRoute: ResolveRoute }) {
   return (source: Observable<Request | Response>) =>
     source.pipe(
-      concatMap(req => from(resolveRoute(req)).pipe(request(), getNext(resolveRoute, req))),
+      concatMap(req =>
+        from(resolveRoute(req)).pipe(
+          concatMap(req => {
+            if (req === null) {
+              return throwError(() => new Error('Request is empty!'));
+            }
+            return of(req);
+          }),
+          request(),
+          getNext(resolveRoute, req)
+        )
+      ),
       map(resp => resp.clone())
     );
 }