New Twiddle

components.paypal-vault-button.js

import Ember from 'ember';

const {
  computed,
  get,
  set,
} = Ember;

export default Ember.Component.extend({
  
  braintreeClients: Ember.inject.service(),
  
  inserted: Ember.on('didInsertElement', function () {
  	const paypalClient = get(this, 'braintreeClients.paypalClient');
    console.log(paypalClient);
    
    this.$().find('button').on('click', function () {
    	console.log('braintree.vault');
    });
  }),
  
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

services.braintree-clients.js

import Ember from 'ember';

const braintreeClientToken = 'TOKEN';

const {
  computed,
  get,
  set,
} = Ember;

export default Ember.Service.extend({

  clientInstance: computed(function () {
    return new Ember.RSVP.Promise((resolve, reject) => {
      braintree.client.create({
        authorization: braintreeClientToken,
      }, function (err, clientInstance) {
        if (err) return reject(err);
        return resolve(clientInstance)
      });
    });
  }),
  
  paypalInstance: computed(function () {
    return get(this, 'clientInstance')
    .then(function (clientInstance) {
      braintree.paypal.create({
        client: clientInstance
      }, function (err, paypalInstance) {
        if (err) return reject(err);
        return resolve(paypalInstance);
      });
    });
  }),
  
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

{{ paypal-vault-button }}

templates.components.paypal-vault-button.hbs

<button>Pay with Paypal</button>

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}