refresh_token.js

axios.interceptors.response.use(undefined, function (error) {

  return new Promise(function(resolve, reject){
    if(error.response.status == '401' && error.config){

      axios.post(`${ROOT_URL}/app_dev.php/oauth/v2/token`, {
            client_id: '3_68v87tczl8ws8088sgo80ckwcc4okow044o4o00084gkckogw8',
            client_secret: '1fl4iu0t3uw0gco4socogocsswgkg8gcgs48oggcckw44kkks8',
            grant_type: 'refresh_token',
            refresh_token: localStorage.getItem('refresh_token')
          })
          .then(response => {
            localStorage.setItem('token', response.data.access_token);
            localStorage.setItem('refresh_token', response.data.refresh_token);

            error.config.headers.Authorization = 'Bearer ' + localStorage.getItem('token');
            axios(error.config).then(resolve, reject);

          })
          .catch(() =>{
            browserHistory.push('/');
          });
    }

  });
});