Initial commit for the Angular part. We are nowhere yet.

bookie/src/app/auth/auth.service.ts

@@ -0,0 +1,73 @@
+import {Injectable} from '@angular/core';
+import {HttpClient, HttpHeaders} from '@angular/common/http';
+import {Observable} from 'rxjs/internal/Observable';
+import {catchError, tap} from 'rxjs/operators';
+import {Subject} from 'rxjs/internal/Subject';
+import {ErrorLoggerService} from '../core/error-logger.service';
+import {User} from '../user/user';
+
+
+const httpOptions = {
+  headers: new HttpHeaders({'Content-Type': 'application/json'})
+};
+
+const loginUrl = '/v1/login';
+const logoutUrl = '/logout';
+const checkUrl = '/v1/auth';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AuthService {
+  public userObservable = new Subject<User>();
+
+  constructor(private http: HttpClient, private log: ErrorLoggerService) {
+    this.check().subscribe();
+  }
+
+  private _user: User;
+
+  get user() {
+    return this._user;
+  }
+
+  set user(user: User) {
+    this._user = user;
+    this.log.handleError('AuthService','Set User', user);
+    this.userObservable.next(user);
+  }
+
+  login(name: string, password: string, otp?: string, clientName?: string): Observable<any> {
+    const data = {name: name, password: password};
+    if (otp) {
+      data['otp'] = otp;
+    }
+
+    if (clientName) {
+      data['clientName'] = clientName;
+    }
+
+    return this.http.post(loginUrl, data, httpOptions)
+      .pipe(
+        tap((user: User) => this.user = user),
+        catchError(this.log.handleError('AuthService', 'login'))
+      );
+  }
+
+  logout(): Observable<any> {
+    return this.http.post(logoutUrl, {}, httpOptions)
+      .pipe(
+        tap((user: User) => this.user = user),
+        catchError(this.log.handleError('AuthService', 'logout'))
+      );
+  }
+
+  check(): Observable<any> {
+    return this.http.get(checkUrl, httpOptions)
+      .pipe(
+        tap((user: User) => this.user = user),
+        catchError(this.log.handleError('AuthService', 'check'))
+      );
+  }
+
+}