cancel-epic.js

export const apiValidate = action$ => {
    return action$.ofType(validateRequestAction)
        .debounceTime(250)
        .switchMap((action) => (
            Observable.ajax({
                url: url,
                method: 'GET',
                crossDomain: true,
                headers: {
                    "Content-Type": 'application/json'
                },
                responseType: 'json'
            })
          .map(payload => (new APISuccessValidate()))
          .catch(payload => ([new APIFailureValidate()]))
        ))
        .takeUntil(action$.ofType(validateCancelAction))
        .repeat();
};