fix(server): allow an empty assetIds array when creating an album shared link (#31098)

e2e/src/specs/server/api/shared-link.e2e-spec.ts

@@ -330,6 +330,16 @@ describe('/shared-links', () => {
         }),
       );
     });
+
+    it('should create an album shared link when the client sends an empty assetIds array', async () => {
+      const { status, body } = await request(app)
+        .post('/shared-links')
+        .set('Authorization', `Bearer ${user1.accessToken}`)
+        .send({ type: SharedLinkType.Album, albumId: album.id, assetIds: [] });
+
+      expect(status).toBe(201);
+      expect(body).toEqual(expect.objectContaining({ type: SharedLinkType.Album, userId: user1.userId }));
+    });
   });
 
   describe('PATCH /shared-links/:id', () => {

server/src/controllers/shared-link.controller.spec.ts

@@ -77,6 +77,17 @@ describe(SharedLinkController.name, () => {
       );
       expect(service.create).not.toHaveBeenCalled();
     });
+
+    it('should allow an empty assetIds array for share type Album', async () => {
+      const albumId = newUuid();
+      await request(ctx.getHttpServer())
+        .post('/shared-links')
+        .send({ type: SharedLinkType.Album, albumId, assetIds: [] });
+      expect(service.create).toHaveBeenCalledWith(
+        undefined,
+        expect.objectContaining({ type: SharedLinkType.Album, albumId }),
+      );
+    });
   });
 
   describe('DELETE /shared-links/:id/assets', () => {

server/src/dtos/shared-link.dto.ts

@@ -37,7 +37,7 @@ const SharedLinkCreateSchema = z
         if (!albumId) {
           ctx.addIssue(`albumId is required for type ${SharedLinkType.Album}`);
         }
-        if (assetIds) {
+        if (assetIds && assetIds.length > 0) {
           ctx.addIssue(`assetIds can only be used with type ${SharedLinkType.Individual}`);
         }
         return;