add angular material project

jambotron-ui/src/app/services/user.service.ts

@@ -0,0 +1,31 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import {User} from "../models/user.model";
+import {Tutorial} from "../models/tutorial.model";
+
+const API_URL = 'http://localhost:8080/api/users';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class UserService {
+  constructor(private http: HttpClient) { }
+
+  getPublicContent(): Observable<any> {
+    return this.http.get(API_URL + '/all', { responseType: 'text' });
+  }
+
+  getUserBoard(): Observable<any> {
+    return this.http.get(API_URL + '/user', { responseType: 'text' });
+  }
+
+  getModeratorBoard(): Observable<any> {
+    return this.http.get(API_URL + '/mod', { responseType: 'text' });
+  }
+
+  getAdminBoard(): Observable<User[]> {
+    return this.http.get<User[]>(API_URL);
+  }
+}
+