Async Await with React Lifecycle methods

asyncawaitreact.jsx

class AwesomeProject extends Component {
  state = {}
  setStateAsync(state) {
    return new Promise((resolve) => {
      this.setState(state, resolve)
    });
  }
  async componentDidMount() {
    StatusBar.setNetworkActivityIndicatorVisible(true)
    const res = await fetch('https://api.ipify.org?format=json')
    const {ip} = await res.json()
    await this.setStateAsync({ipAddress: ip})
    StatusBar.setNetworkActivityIndicatorVisible(false)
  }
  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          My IP is {this.state.ipAddress || 'Unknown'}
        </Text>
      </View>
    );
  }
}

source: http://bit.ly/2hRuBOb