Angular 12 JWT Authentication & Authorization example

Flow for User Registration and User Login

For JWT – Token based Authentication with Web API, we’re gonna call 2 endpoints:

• POST api/auth/signup for User Registration
• POST api/auth/signin for User Login

You can take a look at following flow to have an overview of Requests and Responses that Angular 12 Client will make or receive.

Angular JWT App Diagram with Router and HttpInterceptor

For more detail, please visit:

Angular 12 JWT Authentication & Authorization with Web API

With Spring Boot back-end

Angular 12 + Spring Boot: JWT Authentication and Authorization example

With Node.js Express back-end

Angular 12 + Node.js Express: JWT Authentication and Authorization example

Open app/_helpers/auth.interceptor.js, modify the code to work with x-access-token like this:

...

// const TOKEN_HEADER_KEY = 'Authorization'; // for Spring Boot back-end
const TOKEN_HEADER_KEY = 'x-access-token';   // for Node.js Express back-end

@Injectable()
export class AuthInterceptor implements HttpInterceptor {
  ...

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    ...
    if (token != null) {
      // for Spring Boot back-end
      // authReq = req.clone({ headers: req.headers.set(TOKEN_HEADER_KEY, 'Bearer ' + token) });

      // for Node.js Express back-end
      authReq = req.clone({ headers: req.headers.set(TOKEN_HEADER_KEY, token) });
    }
    return next.handle(authReq);
  }
}

...

Run ng serve --port 8081 for a dev server. Navigate to http://localhost:8081/.

More practice

Angular JWT Refresh Token example with Http Interceptor

Angular CRUD Application example with Web API

Angular Pagination example | ngx-pagination

Angular File upload example with progress bar & Bootstrap

Fullstack with Node.js Express:

Angular + Node.js Express + MySQL example

Angular + Node.js Express + PostgreSQL example

Angular + Node.js Express + MongoDB example

Angular + Node.js Express: File upload example

Fullstack with Spring Boot:

Angular + Spring Boot + MySQL example

Angular + Spring Boot + PostgreSQL example

Angular + Spring Boot + MongoDB example

Angular + Spring Boot: File upload example

Fullstack with Django:

Angular 12 + Django example

Angular + Django + MySQL

Angular + Django + PostgreSQL

Angular + Django + MongoDB

Serverless with Firebase:

Angular 12 Firebase CRUD with Realtime DataBase | AngularFireDatabase

Angular 12 Firestore CRUD example with AngularFireStore

Angular 12 Firebase Storage: File Upload/Display/Delete example

Integration (run back-end & front-end on same server/port)

How to integrate Angular with Node.js Restful Services

How to Integrate Angular with Spring Boot Rest API