src/roommates/sagas/fetchRoomList.js
import createFetchSaga from '../../sagas/createFetchSaga'
import { roomListFetch } from '../actions'
import { getActiveOrder } from '../../orders/selectors'
export default createFetchSaga(roomListFetch, {
payloadSelector: getActiveOrder,
payloadReducer: order => ({ orderId: order.id })
})