diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/authentication.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/authentication.service.ts
index bd4ddba..84370e3 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/authentication.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/authentication.service.ts
@@ -1,19 +1,28 @@
-import { Inject, Injectable } from '@angular/core';
+import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 import { Observable } from 'rxjs';
 import { Router } from '@angular/router';
 import Swal from 'sweetalert2';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root',
 })
 export class AuthenticationService {
+
+  private loginUrl: string;
+  private logoutUrl: string;
+  private checkUrl: string;
+
   constructor(
     private router: Router,
     private http: HttpClient,
-    @Inject('LOGIN_URL') private loginUrl: string,
-    @Inject('LOGOUT_URL') private logoutUrl: string,
-    @Inject('LOGIN_CHECK_URL') private checkUrl: string) { }
+    urlService : UrlService)
+    { 
+      this.loginUrl = urlService.apiRoute.login;
+      this.logoutUrl = urlService.apiRoute.logout;
+      this.checkUrl = urlService.apiRoute.loginCheck;
+    }
 
   isAuthenticated(): Observable<boolean> {
     return new Observable(observer => {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-group.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-group.service.ts
index afe0339..8dd8ff8 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-group.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-group.service.ts
@@ -4,13 +4,14 @@ import { DirGroup, } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs/internal/Observable';
 import Swal from 'sweetalert2';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class DirGroupService extends ApiService<DirGroup> {
-  constructor(http: HttpClient, @Inject('DIR_GROUP_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.dirGroup);
   }
 
   //TODO: Swal.fire
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-user.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-user.service.ts
index 09fc844..b1e6a91 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-user.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir-user.service.ts
@@ -3,13 +3,14 @@ import { HttpClient, HttpParams } from '@angular/common/http';
 import { DirUser } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs/internal/Observable';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class DirUserService extends ApiService<DirUser> {
-  constructor(http: HttpClient, @Inject('DIR_USER_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.dirUser);
   }
 
   override getAll(groupName?: string): Observable<DirUser[]> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir.service.ts
index f8c1f26..fc8671e 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/dir.service.ts
@@ -2,13 +2,16 @@ import { HttpClient, HttpParams } from '@angular/common/http';
 import { Observable } from 'rxjs';
 import { Inject, Injectable } from '@angular/core';
 import { DirUser } from '../models/user-management.api.models';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class DirService {
-  constructor(private http: HttpClient, @Inject('DIR_URL') private baseUrl: string) {
+  private baseUrl: string
+  constructor(private http: HttpClient, urlService : UrlService) {
     this.http = http;
+    this.baseUrl = urlService.apiRoute.directory;
   }
 
   getUser(groupName: string): Observable<DirUser[]> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group-of-user.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group-of-user.service.ts
index 66a070a..7669dbf 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group-of-user.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group-of-user.service.ts
@@ -3,13 +3,14 @@ import { HttpClient, HttpParams } from '@angular/common/http';
 import { GroupOfUser } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class GroupOfUserService extends ApiService<GroupOfUser> {
-  constructor(http: HttpClient, @Inject('GROUP_OF_USER_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.groupOfUser);
   }
 
   deleteByGroupUserId(groupId: number, userId: number): Observable<any> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group.service.ts
index c2ab13c..4991984 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/group.service.ts
@@ -3,13 +3,14 @@ import { HttpClient } from '@angular/common/http';
 import { DirGroup, Group, } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs/internal/Observable';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class GroupService extends ApiService<Group> {
-  constructor(http: HttpClient, @Inject('GROUP_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.group);
   }
 
   createByDir(createModel: DirGroup): Observable<DirGroup> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module-of-user.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module-of-user.service.ts
index 598efab..00a8f9c 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module-of-user.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module-of-user.service.ts
@@ -3,13 +3,14 @@ import { HttpClient } from '@angular/common/http';
 import { ModuleOfUser } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class ModuleOfUserService extends ApiService<ModuleOfUser> {
-  constructor(http: HttpClient, @Inject('MODULE_OF_USER_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.moduleOfUser);
   }
 
   deleteByModuleGroupId(moduleId: number, userId: number): Observable<any> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module.service.ts
index def077e..86bc8af 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/module.service.ts
@@ -2,12 +2,13 @@ import { Injectable, Inject } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 import { ApiService } from './user-management.api.service';
 import { Module } from '../models/user-management.api.models';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class ModuleService extends ApiService<Module> {
-  constructor(http: HttpClient, @Inject('MODULE_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.module);
   }
 }
\ No newline at end of file
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/url.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/url.service.ts
index f5c3231..abc4307 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/url.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/url.service.ts
@@ -20,7 +20,7 @@ export class UrlService {
     return baseElement?.getAttribute('href') || '/';
   }
 
-  getApiUrl(route: string = ""): string | null {
+  getApiUrl(route: string = ""): string {
     return env.api_url + route;
   }
 
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-management.api.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-management.api.service.ts
index 419f80f..9c53c36 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-management.api.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-management.api.service.ts
@@ -1,12 +1,8 @@
 import { HttpClient } from '@angular/common/http';
 import { Observable } from 'rxjs';
-import { Inject, Injectable } from '@angular/core';
 
-@Injectable({
-  providedIn: 'root'
-})
 export class ApiService<Model> {
-  constructor(http: HttpClient, @Inject('BASE_URL') baseUrl: string) {
+  constructor(http: HttpClient, baseUrl: string) {
     this.http = http;
     this.baseUrl = baseUrl;
   }
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-representation.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-representation.service.ts
index cec902d..bdb3609 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-representation.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user-representation.service.ts
@@ -3,13 +3,14 @@ import { UserRep } from "../models/user-management.api.models";
 import { ApiService } from "./user-management.api.service";
 import { HttpClient, HttpParams } from "@angular/common/http";
 import { Observable } from "rxjs";
+import { UrlService } from "./url.service";
 
 @Injectable({
   providedIn: "root"
 })
 export class UserRepService extends ApiService<UserRep> {
-  constructor(http: HttpClient, @Inject('USER_REP_URL') private userRepUri: string) {
-    super(http, userRepUri)
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.userRep)
   }
 
   override getAll(withUser: boolean = false, withRepGroup: boolean = false, withRightGroup: boolean = false, withRepUser: boolean = false, userId?: number): Observable<UserRep[]> {
diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user.service.ts
index 16eeb68..1970d0b 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/user.service.ts
@@ -3,13 +3,14 @@ import { HttpClient } from '@angular/common/http';
 import { DirUser, User } from '../models/user-management.api.models';
 import { ApiService } from './user-management.api.service';
 import { Observable } from 'rxjs';
+import { UrlService } from './url.service';
 
 @Injectable({
   providedIn: 'root'
 })
 export class UserService extends ApiService<User> {
-  constructor(http: HttpClient, @Inject('USER_URL') private userUri: string) {
-    super(http, userUri);
+  constructor(http: HttpClient, urlService : UrlService) {
+    super(http, urlService.apiRoute.user);
   }
 
   getByModuleId(moduleId: number, assigned: boolean = true): Observable<User[]> {