Handle Blob responses in AuthService.login and enhance JWT decoding logic. Add utility methods for Blob detection and conversion.

frontend/src/app/services/auth.service.ts

@@ -1,6 +1,6 @@
 import {Injectable} from '@angular/core';
 import {LoginService} from '@api';
-import {BehaviorSubject, Observable, throwError} from 'rxjs';
+import {BehaviorSubject, from, Observable, of, switchMap, throwError} from 'rxjs';
 import {catchError, tap} from 'rxjs/operators';
 import {MatSnackBar} from '@angular/material/snack-bar';
 import {JwtHelperService} from '@auth0/angular-jwt';
@@ -25,16 +25,34 @@ export class AuthService {
     this.checkAuthStatus();
   }
 
+  private isBlob(value: any): boolean {
+    return value instanceof Blob;
+  }
+
+  private getAsBlob(value: any): Blob {
+    return value as Blob;
+  }
+
   /**
    * Attempt to login with the provided code
    */
   public login(code: string): Observable<any> {
     return this.loginService.login(code).pipe(
-      tap(jwt => {
-        console.log(jwt);
-        console.log(atob(jwt));
-        this.saveJwt(atob(jwt)); //Decode jwt from base64
-        this.isAuthenticatedSubject.next(true);
+      switchMap(response => {
+        if (this.isBlob(response)) {
+          return from(this.getAsBlob(response).text()).pipe(
+            tap(jwtText => {
+              console.log('JWT from Blob:', jwtText);
+              this.saveJwt(jwtText);
+              this.isAuthenticatedSubject.next(true);
+            })
+          );
+        } else {
+          console.log('JWT as string:', response);
+          this.saveJwt(atob(response));
+          this.isAuthenticatedSubject.next(true);
+          return of(response);
+        }
       }),
       catchError(error => {
         this.snackBar.open('Login failed', '', {duration: 2000});