Passing client token back into the form about braintree HOT 7 CLOSED

 Meteor.call('getClientToken', function (err, res) {
     //Client side API call
      var client = new braintree.api.Client({clientToken: res});

      client.tokenizeCard({
        number: form.billing.card.number,
        cardholderName: form.billing.card.name,
        expirationMonth: form.billing.card.exp.split('/')[0],
        expirationYear: form.billing.card.exp.split('/')[1],
        // CVV if required
        cvv: form.billing.card.cvv,
        // Address if AVS is on
        billingAddress: {
          postalCode: form.billing.card.zip
        }
      }, function (err, nonce) {
        if(err) {
          console.log('ERROR', err)
          return false;
        } else if(nonce) {
             console.log('SUCCESS', nonce)
        }
      });

    });

var client = new braintree.api.Client({clientToken: res});

<script src="https://js.braintreegateway.com/v2/braintree.js"></script> 

/**
   * Create a client token so we can create a secure token
   */
  createClientToken : function () {

    var bt = BrainTreeConnect({
      environment: process.env.PRODUCTION && Braintree.Environment.Production || Braintree.Environment.Sandbox,
      merchantId: Meteor.settings.BRAIN_TREE.MERCHANT_ID,
      publicKey:  Meteor.settings.BRAIN_TREE.PUBLIC_KEY,
      privateKey: Meteor.settings.BRAIN_TREE.PRIVATE_KEY
    });

    return bt.clientToken.generate({
      customerId : Meteor.users.findOne(this.userId).profile.billing.customerId
    }).clientToken;
  },