2018-03-19 21:51:51 -07:00

26 lines
555 B
TypeScript

import { of } from 'rxjs';
// #docregion
import { ajax } from 'rxjs/ajax';
import { map, catchError } from 'rxjs/operators';
// Return "response" from the API. If an error happens,
// return an empty array.
const apiData = ajax('/api/data').pipe(
map(res => {
if (!res.response) {
throw new Error('Value expected!');
}
return res.response;
}),
catchError(err => of([]))
);
apiData.subscribe({
next(x) { console.log('data: ', x); },
error(err) { console.log('errors already caught... will not run'); }
});
// #enddocregion