have-a-global-error-handler-3.js

class CatsGetInit extends ActionStandard {}
class CatsGetSuccess extends ActionStandard {}
class CatsGetError extends ActionStandard {}

const reducerCatsLoading = createReducer(
  false,
  reducerLoadingMap(CatsGetInit, CatsGetSuccess, CatsGetError),
)
const reducerCatsData = createReducer(undefined, {
  [CatsGetSuccess.type]: () => action.payload,
})

const reducerCats = combineReducers({
  data: reducerCatsData,
  loading: reducerCatsLoading)
})