App.js

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 * @flow
 */

import React, { Component } from 'react';
import {
  Platform,
  StyleSheet,
  Text,
  View, 
  Button
} from 'react-native';

import stripe from 'tipsi-stripe'

const instructions = Platform.select({
  ios: 'Press Cmd+R to reload,\n' +
    'Cmd+D or shake for dev menu',
  android: 'Double tap R on your keyboard to reload,\n' +
    'Shake or press menu button for dev menu',
});

stripe.init({
  publishableKey: '<redacted>',
  merchantId: 'MERCHANT_ID', // Optional
  androidPayMode: 'test', // Optional, android only, 'production' by default
})

export default class App extends Component<{}> {
  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Welcome to React Native!
        </Text>
        <Text style={styles.instructions}>
          To get started, edit App.js
        </Text>
        <Text style={styles.instructions}>
          {instructions}
        </Text>

        <Button title="Android pay" onPress={async () =>  {
const options = {
  total_price: '80.00',
  currency_code: 'USD',
  shipping_address_required: true,
  shipping_countries: ["US", "CA"],
  line_items: [{
    currency_code: 'USD',
    description: 'Whisky',
    total_price: '50.00',
    unit_price: '50.00',
    quantity: '1',
  }, {
    currency_code: 'USD',
    description: 'Vine',
    total_price: '30.00',
    unit_price: '30.00',
    quantity: '1',
  }],
}          
const token = await stripe.paymentRequestWithAndroidPay(options)
console.log(token);
        }}></Button>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});