diff --git a/src/lib/services/generic.service.ts b/src/lib/services/generic.service.ts
index 45f84ae..408c389 100644
--- a/src/lib/services/generic.service.ts
+++ b/src/lib/services/generic.service.ts
@@ -31,11 +31,11 @@ export abstract class GenericService<I> {
         return id ? this._getOne([id]) : this.getAll();
     }
 
-    @Validate()
-    getAll<R = I[]>(modelPath = this._defaultModelPath): Observable<R> {
+    getAll<R = I[]>(modelPath = this._defaultModelPath, queryParams?: List<QueryParam>): Observable<R> {
         return this._http.get<R>(`/${encodeURI(modelPath)}`, {
             headers: HeadersConfiguration.getHeaders({ contentType: false }),
             observe: 'body',
+            params: this._queryParams(queryParams),
         });
     }
 
diff --git a/src/lib/utils/operators.ts b/src/lib/utils/operators.ts
index b6abbc4..c7580e9 100644
--- a/src/lib/utils/operators.ts
+++ b/src/lib/utils/operators.ts
@@ -9,5 +9,9 @@ export function any<T>(predicate: (value: T, index: number) => boolean): Operato
     return map(entities => entities.some(predicate));
 }
 
+export function mapEach<T, R>(predicate: (value: T, index: number) => R): OperatorFunction<T[], R[]> {
+    return map(entities => entities.map(predicate));
+}
+
 export const toLengthValue = (entities: unknown[]): number => entities?.length ?? 0;
 export const getLength = pipe(map(toLengthValue), distinctUntilChanged());