import { ajax } from "rxjs/observable/dom/ajax";
import { of } from "rxjs/observable/of";
import { _catch, map } from "rxjs/operators";
import { retry } from "./retry";

const name = ajax
  .getJSON<{ name: string }>("/api/employees/alice")
  .pipe(
    retry(3, 1000),
    map(employee => employee.name),
    _catch(error => of(null))
  );