14.6.2 - 响应拦截

@Injectable()
export class AuthInterceptor implements HttpInterceptor {
    constructor() {}
    // 拦截方法
    intercept(
    request: HttpRequest<unknown>,
     next: HttpHandler
    ): Observable<any> {
        return next.handle(request).pipe(
            retry(2), // 重试的次数
            catchError((error: HttpErrorResponse) => throwError(() => error))
        )
    }
}