Google Wallet Node.js samples

Overview

The files in this directory each implement a demo class for a specific Google Wallet pass type. Each class implements methods for performing tasks such as creating a pass class, updating issuer permissions, and more.

Pass type	File
Event tickets	demo-eventticket.js
Flight boarding passes	demo-flight.js
Generic passes	demo-generic.js
Gift cards	demo-giftcard.js
Loyalty program membership	demo-loyalty.js
Offers and promotions	demo-offer.js
Transit passes	demo-transit.js

Prerequisites

• Node.js 18.x
• NPM 8.x
• Follow the steps outlined in the Google Wallet prerequisites to create the Google Wallet issuer account and Google Cloud service account

Environment variables

The following environment variables must be set. Alternatively, you can update the code files to set the values directly. They can be found in the constructor for each class file.

Enviroment variable	Description	Example
GOOGLE_APPLICATION_CREDENTIALS	Path to a Google Cloud service account key file	/path/to/key.json

How to use the code samples

1. Use npm to install the dependencies in the package.json

   # This must be run from the same location as the package.json
   npm install

2. In your Node.js code, import a demo class and call its method(s). An example can be found below

   // Import the demo class
   const { DemoEventTicket } = require('./demo-eventticket');
   
   // Create a demo class instance
   // Creates the authenticated HTTP client
   let demo = new DemoEventTicket();
   
   // Create a pass class
   demo.createClass('issuer_id', 'class_suffix');
   
   // Update a pass class
   demo.updateClass('issuer_id', 'class_suffix');
   
   // Patch a pass class
   demo.patchClass('issuer_id', 'class_suffix');
   
   // Add a message to a pass class
   demo.addClassMessage('issuer_id', 'class_suffix', 'header', 'body');
   
   // Create a pass object
   demo.createObject('issuer_id', 'class_suffix', 'object_suffix');
   
   // Update a pass object
   demo.updateObject('issuer_id', 'object_suffix');
   
   // Patch a pass object
   demo.patchObject('issuer_id', 'object_suffix');
   
   // Add a message to a pass object
   demo.addObjectMessage('issuer_id', 'object_suffix', 'header', 'body');
   
   // Expire a pass object
   demo.expireObject('issuer_id', 'object_suffix');
   
   // Generate an Add to Google Wallet link that creates a new pass class and object
   demo.createJwtNewObjects('issuer_id', 'class_suffix', 'object_suffix');
   
   // Generate an Add to Google Wallet link that references existing pass object(s)
   demo.createJwtExistingObjects('issuer_id');
   
   // Create pass objects in batch
   demo.batchCreateObjects('issuer_id', 'class_suffix');