rest-samples/python/README.md

Google Wallet Python 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.py
Flight boarding passes	demo_flight.py
Generic passes	demo_generic.py
Gift cards	demo_giftcard.py
Loyalty program membership	demo_loyalty.py
Offers and promotions	demo_offer.py
Transit passes	demo_transit.py

Prerequisites

• Python 3.x
• The pipenv library
• 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. Create a virtual environment in your workspace

   # This creates a .venv directory in the current working path
   python3 -m venv .venv
   

2. Activate the virtual environment

   # This must be run in the same location as the .venv directory
   source .venv/bin/activate
   

3. Use pipenv to install the dependencies in the Pipfile

   # This must be run from the same location as the Pipfile
   pipenv install
   

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

   # Import the demo class
   from .demo_eventticket import DemoEventTicket
   
   # Create a demo class instance
   demo = DemoEventTicket()
   
   # Create the authenticated HTTP client
   demo.auth()
   
   # Create a pass class
   demo.create_event_ticket_class(issuer_id='issuer_id',
                                  class_suffix='class_suffix')
   
   # Create a pass object
   demo.create_event_ticket_object(issuer_id='issuer_id',
                                   class_suffix='class_suffix',
                                   user_id='user_id')
   
   # Create an Add to Google Wallet link
   demo.create_jwt_save_url(issuer_id='issuer_id',
                            class_suffix='class_suffix',
                            user_id='user_id')
   
   # Create an issuer account
   demo.create_issuer_account(issuer_name='issuer_name',
                              issuer_email='issuer_email')
   
   # Create pass objects in batch
   demo.batch_create_event_ticket_objects(issuer_id='issuer_id',
                                          class_suffix='class_suffix')