Pre-requisites

1. Read the Google Pay Web Brand Guidelines
2. Follow Google Pay's Deploy production environment guidelines(Follow Google Pay's Deploy production environment guidelines). In this step you will obtain a merchantID. By integrating Google Pay, you agree to Google's terms of service.
3. Contact the Fat Zebra support team to have Google Pay enabled on your account. You will be supplied a gatewayMerchantID.

Implementation Steps

Follow the instructions in the following Google guides to implement a Google Pay button in your app:

• Google Pay Web developer documentation
• Google Pay Web integration checklist

When setting up the tokenizationSpecification object, specify the following values for the gateway and gatewayMerchantId values:

const tokenizationSpecification = {
  type: 'PAYMENT_GATEWAY',
  parameters: {
    'gateway': 'fatzebra',
    'gatewayMerchantId': '<provided by Fat Zebra>'
  }
};

The Google Pay button will generate an encrypted token that you must then include in a request to the Fat Zebra API to:

• Create a purchase using the card in the Google Pay payload
• Or tokenize the card details in the Google Pay payload

The following documentation outlines the format of the two API calls:

• Create a purchase using a wallet
• Tokenize a card with wallet credentials