fetch2.js

// fetch places
function fetchPlaces () {
  return (dispatch) => {
    dispatch({type: 'FETCH_PLACES'})
    return fetch('http://localhost:3001/api/places')
      .then(response => {
        response.json()
        .then(json => {
          dispatch({type: 'RECEIVED_PLACES', payload: json})
        })
      })
      .catch((err) => {
        dispatch({type: 'FETCH_PLACES_ERROR', payload: err})
      })
  }
}