Expo Push Notifications for React Native

App.js

import React from 'react';
import {
  View,
  Button,
  Text,
  Image,
  AsyncStorage
} from 'react-native';
import { StorageKeys } from './config/constants';
import { Permissions, Notifications, Constants } from 'expo';

export default class App extends React.Component {

  state = {
    token: ''
  }

  async componentWillMount() {
    const { status } = await Permissions.askAsync(Permissions.NOTIFICATIONS);
    if(status !== 'granted' || status !== 'undetermined') {
      alert("Permissions not granted");
      return;
    }

    // Bind a notification handler
    this.notificationHandler = Notifications.addListener(this.handlePush);
  }

  handlePush = notification => {
    console.log(">>", notification);
    this.setState({ notification });
  }

  show = async () => {
    console.log("presenting...");
    const data = await Notifications.presentLocalNotificationAsync({
      title: "My Awesome Title",
      body: "Thsis is a local notification",
      data: { some: { data: "that we can use" } }
    });
  }

  schedule = async () => {
    console.log("scheduling...");
    const data = await Notifications.scheduleLocalNotificationAsync({
      title: "My Awesome Title",
      body: "Thsis is a schduled local notification",
      data: { some: { data: "schduled local notification" } }
    }, {
        time: (new Date()).getTime() + 5000
      });
  }

  getToken = async () => {
    const token = await Notifications.getExpoPushTokenAsync();

    console.log("Token:", token);
    this.setState({ token });
  }

  render() {
    return (
      <View style={{ flex: 1, alignItems: 'center', justifyContent: 'center' }}>
        <Button onPress={this.getToken} title={'get Token'} />

        <Button onPress={this.show} title={'Show Local Notif.'} />
        <Button onPress={this.schedule} title={'Schedule Local Notif.'} />

        <Text>DeviceToken: {this.state.token}</Text>
        {
          this.state.notification ?
            <Text>{JSON.stringify(this.state.notification, null, 2)}</Text> :
            <Text>Waiting for a push...</Text>
        }
      </View>
    )
  }
}
/* 
curl -H "Content-Type: application/json" -X POST https://exp.host/--/api/v2/push/send -d '{
  "to": "ExponentPushToken[xxxxxxxxxxxxxxxxxxxxxx]",
  "title":"hello",
  "body": "world"
}'
*/