"interceptor in angular 9" Code Answer's
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http interceptor angular
// src/app/auth/auth.service.ts
import { Injectable } from '@angular/core';
import decode from 'jwt-decode';
@Injectable()
export class AuthService {
public getToken(): string {
return localStorage.getItem('token');
}
public isAuthenticated(): boolean {
// get the token
const token = this.getToken();
// return a boolean reflecting
// whether or not the token is expired
return tokenNotExpired(null, token);
}
}
// src/app/auth/token.interceptor.ts
import { Injectable } from '@angular/core';
import {
HttpRequest,
HttpHandler,
HttpEvent,
HttpInterceptor
} from '@angular/common/http';
import { AuthService } from './auth/auth.service';
import { Observable } from 'rxjs/Observable';
@Injectable()
export class TokenInterceptor implements HttpInterceptor {
constructor(public auth: AuthService) {}
intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
request = request.clone({
setHeaders: {
Authorization: `Bearer ${this.auth.getToken()}`
}
});
return next.handle(request);
}
}
// src/app/app.module.ts
import { HTTP_INTERCEPTORS } from '@angular/common/http';
import { TokenInterceptor } from './../auth/token.interceptor';
@NgModule({ bootstrap: [AppComponent],
imports: [...],
providers: [
{
provide: HTTP_INTERCEPTORS,
useClass: TokenInterceptor,
multi: true
}
]})
export class AppModule {}
Source: medium.com
interceptor in angular 9
interface HttpInterceptor {
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>>
}
Source: angular.io
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