How can I implement JWT authentication in my Angular app?

How can I implement JWT authentication in my Angular app?

To implement JWT authentication in your Angular app, you need to set up a backend that issues JWTs and then use Angular's HttpClient to send requests with the token.

What libraries do I need to use for JWT in Angular?

You can use libraries like @auth0/angular-jwt for handling JWTs in Angular. It helps in managing token storage and adding tokens to requests.

How do I secure my routes with JWT?

You can secure your routes by using Angular's route guards. Create an AuthGuard that checks if the user is authenticated by verifying the JWT.

Can you show me a code example for the AuthGuard?

Sure! Here's a simple AuthGuard implementation:

import { Injectable } from '@angular/core';
import { CanActivate, Router } from '@angular/router';
import { AuthService } from './auth.service';

@Injectable({ providedIn: 'root' })
export class AuthGuard implements CanActivate {
  constructor(private authService: AuthService, private router: Router) {}

  canActivate(): boolean {
    if (this.authService.isLoggedIn()) {
      return true;
    }
    this.router.navigate(['/login']);
    return false;
  }
}