Adding header 'Authorization' in Angular

user_9125567 0
Viewed 395

I want to set header for every request.

I am using request.clone for setting header in Angular 7.2.14

import { HttpInterceptor, HttpEvent, HttpRequest, HttpHandler, HttpResponse, HttpErrorResponse, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';

export class AuthInterceptor implements HttpInterceptor {


    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {        
        const token=localStorage.getItem('token');
        console.log(token);
        request.clone({ headers: request.headers.set('Authorization', token) });    
        return next.handle(request)
    }

}

I am not getting error but I can see Authorization header

angular interceptor token
2 Answers

You are returning old request not cloned one.

intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    const token = localStorage.getItem('token');
    request = request.clone({
        setHeaders: {
            Authorization: `Bearer ${token}`
        }
    });

    return next.handle(request);
}
user_75612900

request.clone() returns an object, doesn't mutate the origin.

try pass request.clone() as parameter.

    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {        
        const token=localStorage.getItem('token');
        console.log(token);    
        return next.handle(request.clone({ headers: request.headers.set('Authorization', token) });)
    }
user_38705470
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