fix: Removing unnecessary user info returned from the backend

amber/src/main/scala/org/apache/texera/web/resource/dashboard/user/workflow/WorkflowResource.scala

@@ -712,23 +712,16 @@ class WorkflowResource extends LazyLogging {
   }
 
   @GET
-  @Path("/owner_user")
-  def getOwnerUser(@QueryParam("wid") wid: Integer): User = {
+  @Produces(Array(MediaType.TEXT_PLAIN))
+  @Path("/owner_name")
+  def getOwnerName(@QueryParam("wid") wid: Integer): String = {
     context
-      .select(
-        USER.UID,
-        USER.NAME,
-        USER.EMAIL,
-        USER.PASSWORD,
-        USER.GOOGLE_ID,
-        USER.ROLE,
-        USER.GOOGLE_AVATAR
-      )
-      .from(WORKFLOW_OF_USER)
-      .join(USER)
-      .on(WORKFLOW_OF_USER.UID.eq(USER.UID))
+      .select(USER.NAME)
+      .from(USER)
+      .join(WORKFLOW_OF_USER)
+      .on(USER.UID.eq(WORKFLOW_OF_USER.UID))
       .where(WORKFLOW_OF_USER.WID.eq(wid))
-      .fetchOneInto(classOf[User])
+      .fetchOneInto(classOf[String])
   }
 
   @GET

amber/src/test/scala/org/apache/texera/web/resource/dashboard/file/WorkflowResourceSpec.scala

@@ -300,6 +300,23 @@ class WorkflowResourceSpec
     )
   }
 
+  "WorkflowResource /owner_name" should "return owner name as plain text" in {
+    workflowResource.persistWorkflow(testWorkflow1, sessionUser1)
+
+    val workflows = workflowResource.retrieveWorkflowsBySessionUser(sessionUser1)
+    assert(workflows.nonEmpty)
+
+    val wid =
+      workflows
+        .find(_.workflow.getName == testWorkflow1.getName)
+        .map(_.workflow.getWid)
+        .getOrElse(workflows.head.workflow.getWid)
+
+    val ownerName = workflowResource.getOwnerName(wid)
+
+    assert(ownerName == testUser.getName)
+  }
+
   "/search API " should "be able to search for workflows in different columns in Workflow table" in {
     // testWorkflow1: {name: test_name, descrption: test_description, content: test_content}
     // search "test_name" or "test_description" or "test_content" should return testWorkflow1

frontend/src/app/common/service/workflow-persist/workflow-persist.service.ts

@@ -41,7 +41,7 @@ export const WORKFLOW_UPDATENAME_URL = WORKFLOW_BASE_URL + "/update/name";
 export const WORKFLOW_UPDATEDESCRIPTION_URL = WORKFLOW_BASE_URL + "/update/description";
 export const WORKFLOW_OWNER_URL = WORKFLOW_BASE_URL + "/user-workflow-owners";
 export const WORKFLOW_ID_URL = WORKFLOW_BASE_URL + "/user-workflow-ids";
-export const WORKFLOW_OWNER_USER = WORKFLOW_BASE_URL + "/owner_user";
+export const WORKFLOW_OWNER_NAME = WORKFLOW_BASE_URL + "/owner_name";
 export const WORKFLOW_NAME = WORKFLOW_BASE_URL + "/workflow_name";
 export const WORKFLOW_PUBLIC_WORKFLOW = WORKFLOW_BASE_URL + "/publicised";
 export const WORKFLOW_DESCRIPTION = WORKFLOW_BASE_URL + "/workflow_description";
@@ -238,13 +238,12 @@ export class WorkflowPersistService {
   }
 
   /**
-   * retrieve the complete information of the owner corresponding to the wid
-   * can be used without logging in
-   * @param wid
+   * Retrieve workflow owner name (no login required).
+   * @param wid workflow id
    */
-  public getOwnerUser(wid: number): Observable<User> {
+  public getOwnerName(wid: number): Observable<string> {
     const params = new HttpParams().set("wid", wid);
-    return this.http.get<User>(`${AppSettings.getApiEndpoint()}/${WORKFLOW_OWNER_USER}`, { params });
+    return this.http.get(`${AppSettings.getApiEndpoint()}/${WORKFLOW_OWNER_NAME}`, { params, responseType: "text" });
   }
 
   /**

frontend/src/app/hub/component/workflow/detail/hub-workflow-detail.component.ts

@@ -98,10 +98,10 @@ export class HubWorkflowDetailComponent implements AfterViewInit, OnDestroy, OnI
         this.viewCount = count;
       });
     this.workflowPersistService
-      .getOwnerUser(this.wid)
+      .getOwnerName(this.wid)
       .pipe(untilDestroyed(this))
-      .subscribe(owner => {
-        this.ownerName = owner.name;
+      .subscribe(ownerName => {
+        this.ownerName = ownerName;
       });
     this.workflowPersistService
       .getWorkflowName(this.wid)