Product Introduction

• Google Pay is a mobile payment and digital wallet service from Google that uses payments saved to a Google account or Android device to provide a seamless online checkout experience for payers across Android apps and mobile networks.

Steps to integrate Google Pay

• 1. The merchant invokes the Google API to retrieve the customer's encrypted payment data
• 2. The merchant invokes the PayEase Google Pay API to initiate an authorization request (Including the encrypted payment data from the Google Pay callback)
• 3. PayEase decrypts the encrypted payment data and processes the transaction

• 1.The customer selects the Google Pay button. The merchant system uses the Google API to initiate a Google Pay request that then recognizes PayEase as the merchant's payment gateway and passes the PayEase merchant ID as the gateway merchant ID
• 2.The customer confirms payment, and Google creates encrypted payment data via the gateway private key provided and then set the encrypted data in the Google API response
• 3.The Merchant receives encrypted payment data returned by Google and submits it to PayEase
• 4.PayEase decrypts payment data and gets the card information and then processes transactions
• 5.PayEase returns transaction results to the merchant
• 6.The merchant returns the transaction results to the device that places the payment
• 7.The payment device displays the payment result to the customer

Precondition to integrate

• 1.Configure Google Pay
• You must provide your PayEase merchant ID to Google to ensure proper encryption of the Google Pay payload and authenticity of the request; For Google Pay related tutorial, please refer to：https://developers.google.com/pay/api/android/guides/tutorial
• 2.Configure the gateway and gateway merchant ID
• The following code example shows how to use the PayEase as gateway to configure the object "PaymentMethodTokenizationParameters"
• Sample 1：Java code
• .setPaymentMethodTokenizationType （WalletConstants.PAYMENT_METHOD_TOKENIZATION_TYPE_PAYMENT_GATEWAY） .addParameter（"gateway","payeasenet"）. addParameter（"gatewayMerchantId","[yourPayaseMID]”）
• Sample 2：Java scritp
• tokenizationType: "PAYMENT_GATEWAY", parameters: { gateway: "payeasenet", gatewayMerchantId: "[yourPayEaseMID]" } }