add domain feature

src/app/services/userdomain.service.ts

@@ -0,0 +1,30 @@
+import {Injectable} from '@angular/core';
+import {HttpClient} from '@angular/common/http';
+
+import {environment} from '../../environments/environment';
+
+@Injectable({
+    providedIn: 'root',
+})
+export class UserDomainService {
+
+    constructor(private http: HttpClient) {
+    }
+
+    get() {
+        return this.http.get(environment.apiUrl + "/users/domains");
+    }
+
+    create(alias) {
+        return this.http.post(environment.apiUrl + "/users/domains", alias);
+    }
+
+    update(alias) {
+        return this.http.patch(environment.apiUrl + "/users/domains", alias);
+    }
+
+    delete(id) {
+        return this.http.delete(environment.apiUrl + "/users/domains/" + id);
+    }
+
+}