Backend authentication

Frontend/src/app/interceptors/auth.interceptor.ts

@@ -0,0 +1,26 @@
+import { Injectable } from '@angular/core';
+import {
+  HttpRequest,
+  HttpHandler,
+  HttpEvent,
+  HttpInterceptor
+} from '@angular/common/http';
+import { AuthService } from '../auth/auth.service';
+import { Observable } from 'rxjs';
+
+@Injectable()
+export class AuthInterceptor implements HttpInterceptor {
+  constructor(
+    private auth$: AuthService
+  ) { }
+
+  intercept(request: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>> {
+    if (!request.url.includes('/auth/apiToken')) {
+      return next.handle(request.clone({ 
+        headers: request.headers.set('Authorization', `Bearer ${this.auth$.apiToken}`),
+      }));
+    } else {
+      return next.handle(request);
+    }
+  }
+}