add viewer do task details

src/app/shared/repository/CMAPI/cmapi.service.ts

@@ -20,7 +20,7 @@ export class CMAPIService {
     } catch (error) {
       return err(error)
     }
-    
+
   }
 
 }

src/app/shared/repository/middleware/middleware-repository.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { MiddlewareRepositoryService } from './middleware-repository.service';
+
+describe('MiddlewareRepositoryService', () => {
+  let service: MiddlewareRepositoryService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(MiddlewareRepositoryService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/shared/repository/middleware/middleware-repository.service.ts

@@ -0,0 +1,23 @@
+import { Injectable } from '@angular/core';
+import { MiddlewareServiceService } from "src/app/shared/API/middleware/middleware-service.service"
+import { ok, err, Result } from 'neverthrow';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class MiddlewareRepositoryService {
+
+  constructor(private MiddlewareServiceService: MiddlewareServiceService) { }
+
+
+  async getViewerLink({DocId, ApplicationId}): Promise<Result<string, any>>  {
+    try {
+      const result = await this.MiddlewareServiceService.GetViewer(DocId, ApplicationId).toPromise();
+      return ok(result.replace('//pdfjs/web/', '/pdfjs/web/'))
+
+    } catch (error) {
+      return err(error)
+    }
+
+  }
+}