How to handle authentication tokens in HTTP headers using HttpClient

Question

With the help of python programming can you tell me  How to handle authentication tokens in HTTP headers using HttpClient?

Answer 1

In Angular, you can handle authentication tokens in HTTP headers using HTTP Interceptors.

Use an HTTP interceptor:

1.Create AuthInterceptor to Add Token to Requests:

import { Injectable } from '@angular/core';

import { HttpInterceptor, HttpRequest, HttpHandler } from '@angular/common/http';

@Injectable()

export class AuthInterceptor implements HttpInterceptor {

  intercept(req: HttpRequest<any>, next: HttpHandler) {

    const token = localStorage.getItem('authToken'); 

    if (token) {

      req = req.clone({

        setHeaders: { Authorization: `Bearer ${token}` } 

      });

    }

    return next.handle(req);

  }

}

2. Register the Interceptor in app.module.ts:

import { HTTP_INTERCEPTORS } from '@angular/common/http';


providers: [

  { provide: HTTP_INTERCEPTORS, useClass: AuthInterceptor, multi: true }

]