gistfile1.txt

setData + getData are async storage functions

// thunk
export const fetchRefreshToken = () => (dispatch, getState) => {
  const token = `${getState().auth.refreshToken}`;
  const params = { "token": token };

  dispatch(refreshTokenRequest());
  return axios.get(`${API_URL}v1/refreshToken`, {params})
    .then((res => {
      // 3.75 hrs = 13500
      // 4 hrs token expires = 14400 
      const now = (Date.now() + (13500*1000)).toString();
      dispatch(refreshTokenSuccess(res));
      setData('tokenExpires', now);
      setData('refreshToken', res);
    }), err => {
      dispatch(refreshTokenError(err));
    });
};

// first screen in app nav

  componentDidMount() {
    getData('tokenExpires')
      .then(tokenExpires => {
        const now = Date.now();
        const expires = parseInt(tokenExpires);
        if (expires < now) {
          this.props.fetchRefreshToken();
        }
      });
  }

  onDidFocus = () => {
    getData('tokenExpires')
      .then(tokenExpires => {
        const now = Date.now();
        const expires = parseInt(tokenExpires);
        if (expires < now) {
          this.props.fetchRefreshToken();
        }
      });
  };