fail Property Readonly

An emitter that triggers when an asynchronous action fails. This emitter takes a payload of type F, which contains the error information or data related to the failure of the action

API


readonly fail: Emitter<F>;

Example


import {switchMap} from 'rxjs';
import {transmit} from '@bitfiber/rx';
import {asyncSignalGroup} from '@bitfiber/ng/rx';
 
// Creates an asynchronous group
const group = asyncSignalGroup<number, string[], Error>((group, {launch, fail}) => {
  launch
    // Sets an effect to be triggered on new launch emissions
    .effect(
      switchMap(page => apiService.get(`api/get?page=${page}`)
        // 'transmit' operator takes either data or an error and transmits it to the `success`
        // or `fail` emitter of the group, respectively
        .pipe(transmit(group))),
    );
 
  fail
    // Performs a tap callback each time the request fails
    .tap(error => console.log(error));
});