angular 4.3x dynamic http interceptor

Question

I followed this article from medium to create a http interceptor which lets me add headers to each http call

@Injectable()
export class TokenInterceptor impl         


        

Answer 1

From the article it says:

It should be noted that Angular’s new HttpClient from @angular/common/http is being used here and not the Http class from @angular/http. If we try to make requests with the traditional Httpclass, the interceptor won’t be hit

Please make sure you are using import { HttpClient } from '@angular/common/http'; in the import section.

and then it the constructor use it: constructor(public http: HttpClient) {}