return (dispatch) => {
    dispatch({
      type: POST_TO_DB,
    });
    firebase.database().ref(locationInDB).push(object)
    .then((data) => {
      dispatch({
        type: POST_TRADE_TO_DB_SUCCESS,
      }); // success
    })
    .catch((err) => {
      console.log("failed to post...")
      dispatch({
        type: POST_TRADE_TO_DB_FAILED,
      }); // failed
    });
  };