Restore API token if expired

Frontend/src/app/auth/auth.service.ts

@@ -3,6 +3,7 @@ import { Injectable } from '@angular/core';
 import moment, { Moment } from 'moment';
 import { environment } from 'src/environments/environment';
 import { User } from '../models/user.model';
+import { from, Observable } from 'rxjs';
 
 @Injectable({
   providedIn: 'root'
@@ -43,10 +44,6 @@ export class AuthService {
           this.user.id = data.id;
           this.apiToken = data.token;
           this.expirationTime = moment(data.expirationTime);
-          const ms = this.expirationTime.subtract(29, 'minutes').diff(moment.utc(), 'milliseconds');
-          setTimeout(() => {
-            this.getAPIToken();
-          }, ms);
           resolve(data);
         },
         error: (e: HttpErrorResponse) => {
@@ -56,4 +53,8 @@ export class AuthService {
       );
     });
   }
+
+  getAPITokenObservable(): Observable<void> {
+    return from(this.getAPIToken());
+  }
 }

Frontend/src/app/components/login-page/login-page.component.ts

@@ -84,7 +84,7 @@ export class LoginPageComponent implements OnInit {
       } else {
         this.ngZone$.run(() => {
           this.notifications$.add({
-            text: "DiunaBI server not responsed.",
+            text: "DiunaBI server not responded.",
             btn: "OK",
             duration: 15000
           });

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

@@ -6,21 +6,45 @@ import {
   HttpInterceptor
 } from '@angular/common/http';
 import { AuthService } from '../auth/auth.service';
-import { Observable } from 'rxjs';
+import { EMPTY, Observable } from 'rxjs';
+import moment from 'moment';
+import { catchError, mergeMap } from 'rxjs/operators';
+import { NotificationsService } from '../services/notifications.service';
 
 @Injectable()
 export class AuthInterceptor implements HttpInterceptor {
   constructor(
-    private auth$: AuthService
+    private auth$: AuthService,
+    private notifications$: NotificationsService
   ) { }
 
   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}`),
-      }));
+      if (this.auth$.expirationTime.isBefore(moment.utc())) {
+        return this.auth$.getAPITokenObservable().pipe(
+          mergeMap(() => {
+            return next.handle(request.clone({
+              headers: request.headers.set('Authorization', `Bearer ${this.auth$.apiToken}`),
+            }));
+          }),
+          catchError(() => {
+            this.notifications$.add({
+              text: "User session is expired and unable to restore. Please restart the app.",
+              btn: "Restart",
+              action: () => { window.location.reload(); },
+              duration: 5000,
+            });
+            return EMPTY;
+          })
+        );
+      } else {
+        return next.handle(request.clone({
+          headers: request.headers.set('Authorization', `Bearer ${this.auth$.apiToken}`),
+        }));
+      }
     } else {
       return next.handle(request);
     }
   }
 }
+

Frontend/src/app/services/notifications.service.ts

@@ -31,7 +31,9 @@ export class NotificationsService {
     }, message.duration ? message.duration : 5000);
     // close parent
     if (message.parentId) {
-      this.remove(message.parentId);
+      setTimeout(() => {
+        this.remove(message.parentId);
+      }, 500);
     }
     return message.id;
   }

Frontend/src/environments/environment.ts

@@ -6,8 +6,8 @@ export const environment = {
   appEnvironment: "local",
   production: false,
   api: {
-    //url: "http://localhost:5400/api"
-    url: "https://diunabi.bim-it.pl/api"
+    url: "http://localhost:5400/api"
+    // url: "https://diunabi.bim-it.pl/api"
   },
   google: {
     clientId: "107631825312-bkfe438ehr9k9ecb2h76g802tj6advma.apps.googleusercontent.com"

WebAPI/Controllers/AuthController.cs

@@ -47,7 +47,7 @@ namespace WebAPI.Controllers
         private dynamic JWTGenerator(User user)
         {
             var key = Encoding.ASCII.GetBytes(configuration.GetValue<string>("Secret"));
-            var expirationTime = DateTime.UtcNow.AddMinutes(30);
+            var expirationTime = DateTime.UtcNow.AddMinutes(5);
             var tokenDescriptor = new SecurityTokenDescriptor
             {
                 Subject = new ClaimsIdentity(new[]