diff --git a/npm/ng-packs/apps/dev-app/src/environments/environment.ts b/npm/ng-packs/apps/dev-app/src/environments/environment.ts
index 87ca8d1447..771698e394 100644
--- a/npm/ng-packs/apps/dev-app/src/environments/environment.ts
+++ b/npm/ng-packs/apps/dev-app/src/environments/environment.ts
@@ -23,23 +23,18 @@ export const environment = {
       rootNamespace: 'MyCompanyName.MyProjectName',
     },
     AbpFeatureManagement: {
-      url: 'https://localhost:44305',
       rootNamespace: 'Volo.Abp',
     },
     AbpPermissionManagement: {
-      url: 'https://localhost:44305',
       rootNamespace: 'Volo.Abp.PermissionManagement',
     },
     AbpTenantManagement: {
-      url: 'https://localhost:44305',
       rootNamespace: 'Volo.Abp.TenantManagement',
     },
     AbpIdentity: {
-      url: 'https://localhost:44305',
       rootNamespace: 'Volo.Abp',
     },
     AbpSettingManagement: {
-      url: 'https://localhost:44305',
       rootNamespace: 'Volo.Abp.SettingManagement',
     },
   },
diff --git a/npm/ng-packs/packages/core/src/lib/models/environment.ts b/npm/ng-packs/packages/core/src/lib/models/environment.ts
index b29f0d338d..46596685b0 100644
--- a/npm/ng-packs/packages/core/src/lib/models/environment.ts
+++ b/npm/ng-packs/packages/core/src/lib/models/environment.ts
@@ -18,15 +18,14 @@ export interface ApplicationInfo {
   logoUrl?: string;
 }
 
-export type ApiConfig = {
+export interface ApiConfig {
   [key: string]: string;
   url: string;
-} & Partial<{
-  rootNamespace: string;
-}>;
+  rootNamespace?: string;
+}
 
 export interface Apis {
-  [key: string]: ApiConfig;
+  [key: string]: Partial<ApiConfig>;
   default: ApiConfig;
 }
 
diff --git a/npm/ng-packs/packages/core/src/lib/services/environment.service.ts b/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
index 2062294b7b..10d7664acb 100644
--- a/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
@@ -4,6 +4,9 @@ import { map } from 'rxjs/operators';
 import { Apis, Environment } from '../models/environment';
 import { InternalStore } from '../utils/internal-store-utils';
 
+const mapToApiUrl = (key: string) => (apis: Apis) =>
+  (apis[key] || apis.default).url || apis.default.url;
+
 @Injectable({ providedIn: 'root' })
 export class EnvironmentService {
   private readonly store = new InternalStore({} as Environment);
@@ -21,13 +24,11 @@ export class EnvironmentService {
   }
 
   getApiUrl(key?: string) {
-    return (this.store.state.apis[key || 'default'] || this.store.state.apis.default).url;
+    return mapToApiUrl(key)(this.store.state.apis);
   }
 
   getApiUrl$(key?: string) {
-    return this.store
-      .sliceState(state => state.apis)
-      .pipe(map((apis: Apis) => (apis[key || 'default'] || apis.default).url));
+    return this.store.sliceState(state => state.apis).pipe(map(mapToApiUrl(key)));
   }
 
   setState(environment: Environment) {
diff --git a/npm/ng-packs/packages/core/src/lib/tests/environment.service.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/environment.service.spec.ts
index fe9f50a546..95c2b58a6c 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/environment.service.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/environment.service.spec.ts
@@ -1,3 +1,4 @@
+import { waitForAsync } from '@angular/core/testing';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
 import { Environment } from '../models';
 import { EnvironmentService } from '../services';
@@ -17,6 +18,7 @@ export const ENVIRONMENT_DATA = ({
     other: {
       url: 'https://localhost:44306',
     },
+    yetAnother: {},
   },
   localization: {
     defaultResourceName: 'MyProjectName',
@@ -39,19 +41,28 @@ describe('ConfigState', () => {
   });
 
   describe('#getEnvironment', () => {
-    it('should return ENVIRONMENT_DATA', () => {
-      expect(environment.getEnvironment()).toEqual(ENVIRONMENT_DATA);
-      environment.getEnvironment$().subscribe(data => expect(data).toEqual(ENVIRONMENT_DATA));
-    });
+    it(
+      'should return ENVIRONMENT_DATA',
+      waitForAsync(() => {
+        expect(environment.getEnvironment()).toEqual(ENVIRONMENT_DATA);
+        environment.getEnvironment$().subscribe(data => expect(data).toEqual(ENVIRONMENT_DATA));
+      }),
+    );
   });
 
   describe('#getApiUrl', () => {
-    it('should return api url', () => {
-      expect(environment.getApiUrl()).toEqual(ENVIRONMENT_DATA.apis.default.url);
-      environment
-        .getApiUrl$('other')
-        .subscribe(data => expect(data).toEqual(ENVIRONMENT_DATA.apis.other.url));
-    });
+    it(
+      'should return api url',
+      waitForAsync(() => {
+        expect(environment.getApiUrl()).toEqual(ENVIRONMENT_DATA.apis.default.url);
+        environment
+          .getApiUrl$('other')
+          .subscribe(data => expect(data).toEqual(ENVIRONMENT_DATA.apis.other.url));
+        environment
+          .getApiUrl$('yetAnother')
+          .subscribe(data => expect(data).toEqual(ENVIRONMENT_DATA.apis.default.url));
+      }),
+    );
   });
 
   // TODO: create permission.service.spec.ts