create cookie service to find CSRF header data

src/app/cookie.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { CookieService } from './cookie.service';
+
+describe('CookieService', () => {
+  let service: CookieService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(CookieService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/cookie.service.ts

@@ -0,0 +1,44 @@
+import { Injectable } from '@angular/core';
+import { deviceID } from './api-utils';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class CookieService {
+
+  constructor() { }
+
+  getCSRFHeader(): any {
+    const dID: String = deviceID();
+    const csrfCookie = 'CSRF-Token-' + dID
+    const csrfHeader = {};
+    csrfHeader['X-CSRF-Token-' + dID] = this.getCookie(csrfCookie);
+    return csrfHeader;
+  }
+
+  getCookie(name: string): string {
+    let ca: Array<string> = document.cookie.split(';');
+    let caLen: number = ca.length;
+    let cookieName = `${name}=`;
+    let c: string;
+
+    for (let i: number = 0; i < caLen; i += 1) {
+      c = ca[i].replace(/^\s+/g, '');
+      if (c.indexOf(cookieName) == 0) {
+        return c.substring(cookieName.length, c.length);
+      }
+    }
+    return '';
+  }
+
+  deleteCookie(name): void {
+    this.setCookie(name, "", -1);
+  }
+
+  setCookie(name: string, value: string, expireDays: number, path: string = ""): void {
+    let d: Date = new Date();
+    d.setTime(d.getTime() + expireDays * 24 * 60 * 60 * 1000);
+    let expires: string = "expires=" + d.toUTCString();
+    document.cookie = name + "=" + value + "; " + expires + (path.length > 0 ? "; path=" + path : "");
+  }
+}

src/app/system-config.service.ts

@@ -7,6 +7,8 @@ import { map } from 'rxjs/operators';
 import { Folder } from './folder';
 import { Device } from './device';
 import { FOLDERS, DEVICES } from './mock-config-data';
+import { CookieService } from './cookie.service';
+import { apiURL } from './api-utils'
 
 @Injectable({
   providedIn: 'root'
@@ -17,18 +19,14 @@ export class SystemConfigService {
   private devices: Device[];
   private foldersSubject: Subject<Folder[]> = new Subject();
   private devicesSubject: Subject<Device[]> = new Subject();
+  private systemConfigUrl = apiURL + '/rest/system/config';  // URL to web api
 
-  private systemConfigUrl = 'http://127.0.0.1:8384/rest/system/config';  // URL to web api
+  httpOptions = { headers: new HttpHeaders(this.cookieService.getCSRFHeader()) };
-  httpOptions = {
-    // TODO find best way to get api key
-    // headers: new HttpHeaders({ 'X-API-Key': 'x' })
-  };
 
-  constructor(private http: HttpClient) { }
+  constructor(private http: HttpClient, private cookieService: CookieService) { }
 
   ngOnInit(): void { }
 
-
   getSystemConfig(): Observable<any> {
     return this.http
       .get(this.systemConfigUrl, this.httpOptions)