request.js

getDataFromServer() {
    fetch('http://178.211.49.209:9000/api/getEverything')
    .then(response => response.json())
    .then(responseJson => {
      console.log('fetched data', responseJson);
      this.setState({dataSource: ds.cloneWithRows(responseJson.response.categories)});
    }).catch(error => console.log(error));
  }
}