Google Pay - Guide

const paymentRequestForm =
   GlobalPayments.paymentRequest.setup("#paymentRequestPlainButton", {
      total: {
         label: 'Donation',
         amount: {
            currency: 'USD',
            value: '1.00'
         }
      },
   }, [applePayOptions, googlePayOptions]);

const googlePayOptions = {
   supportedMethods: "https://google.com/pay",
   data: {
      environment: 'PRODUCTION',
      apiVersion: 2,
      apiVersionMinor: 0,
      merchantInfo: {
         // A merchant ID is available after approval by Google.
         // https://developers.google.com/pay/api/web/guides/test-and-deploy/integration-checklist
         merchantId: '12345678901234567890',
         merchantName: 'Example Merchant'
      },
      allowedPaymentMethods: [{
         type: 'CARD',
         parameters: {
            allowedAuthMethods: ["PAN_ONLY", "CRYPTOGRAM_3DS"],
            allowedCardNetworks: ["AMEX", "DISCOVER", "INTERAC", "JCB", "MASTERCARD", "VISA"]
         },
         tokenizationSpecification: {
            type: 'PAYMENT_GATEWAY',
            parameters: {
               'gateway': 'globalpaymentsinc', // Use this value
               'gatewayMerchantId': '{merchant-key}' // Check your MSH/OEV account for this value
            }
         }
      }]
   }
}

paymentRequestForm.on("token-success", (resp) => {
   // Payment data was successfully tokenized
   // TODO: pass to the server-side for processing
});

paymentRequestForm.on("token-error", (resp) => {
   // TODO: Handle error received during tokenization
});

paymentRequestForm.on("error", (resp) => {
   // TODO: Handle Error received during the request process.
});

   // Mark the payment as `success`, `fail`, or `unknown` based on the REST API response
GlobalPayments.paymentRequest.complete("success");

{
    "reference_id": "{{transaction_reference_d}}",
    "card": {
        "temporary_token": "{{temp_token}}"
    },
    "customer": {
        "billing_address": {
            "line1": "8200 Central Ave.",
            "postal_code": "94560"
        }
    },
    "payment": {
        "amount": "0.00",
        "currency_code": "840"
    },
    "transaction": {
        "country_code": "840",
        "processing_indicators": {
            "create_token": true,
            "address_verification_service": true,
            "generate_receipt": true
        }
    }
}

{
    "sale_id": "000000003015",
    "status": "Approved",
    "approval_code": "005741",
    "cardsecurity_response": "match",
    "processor_response": "DEVELOPMENT APPROVAL",
    "card": {
        "masked_card_number": "545454XXXXXX5454",
        "expiry_month": "12",
        "expiry_year": "35",
        "type": "MasterCard"
    },
    "payment": {
        "amount": "33.00",
        "currency_code": "840",
        "reference_id": "PAYAPI-8f07eb9a-6e05-4a9f-b03d-7b05280a4ae6",
        "type": "Credit"
    },
    "transaction": {
        "batch_amount": "543.00",
        "batch_number": "000253",
        "entry_type": "Keyed",
        "language": "en-US"
    }
}