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Google Pay Alternative

GP Integration option

Payment flow

  1. Customer initiates Google Pay payment on the merchant's website.
  2. Merchant sends the payment request to Constantpos
  3. Constantpos returns a payment link to the merchant.
  4. The merchant redirects the customer to the payment link that opens in the corresponding application on the customer's device.
  5. The customer confirms the payment.
  6. Constantpos sends a webhook notification to the merchant.

Info

This integration option only supports INR currency.

Payment

Request

Send a payment request with the following additional parameters:

Parameter Type Description
request object
amount * required
 bigInteger Transaction amount, must be an integer amount specified in minimal currency units, for example, 50000 (500 rupees). The submitted value must end in 00.
return_url * required
 string URL to return the customer to when the transaction is completed.
method object A section of the payment method.
type * required
 string google_pay_alt
Request example 
{
  "request": {
    "amount": 20000,
    "currency": "INR",
    "description": "description",
    "test": false,
    "return_url": "https://your_return_url.com",
    "method": {
      "type": "google_pay_alt"
    }
  }
}
Response

The google_pay_alt response section will have parameters copied from the request. Additionally, you'll get the form parameter to build a form where the customer should be redirected to finalize the payment.

Response example 
{
    "transaction": {
        "uid": "f4d1aae3-d5c6-4d7e-b2bb-f1f5bcef811f",
        "type": "payment",
        "status": "pending",
        "amount": 20000,
        "currency": "INR",
        "description": "description",
        "created_at": "2023-12-27T08:51:43Z",
        "updated_at": "2023-12-27T08:51:44Z",
        "method_type": "google_pay_alt",
        "receipt_url": "https://my.constantpos.com/customer/transactions/f4d1aae3-d5c6-4d7e-b2bb-f1f5bcef811f/99147ccaef3b6ae127c8df239324f393aa3cde5a8ee3c9f40e6dbc1e182f8580",
        "payment": {
            "status": "pending",
            "gateway_id": 3572,
            "ref_id": "26UCR92023122722143",
            "message": "Transaction Initiated Successfully",
            "bank_code": "200"
        },
        "google_pay_alt": {
            "type": "google_pay_alt"
        },
        "customer": {
            "email": null,
            "ip": null
        },
        "manually_corrected_at": null,
        "message": "Transaction Initiated Successfully",
        "test": false,
        "additional_data": {
            "payment_method": {
                "type": "alternative"
            }
        },              
        "gateway": {
            "iframe": true
        },
        "form": {
        "action": "tez://upi/pay?ver=01&mode=15&am=200.00&mam=200.00&cu=INR&pa=payee1@example1&pn=1SHOP&mc=5816&tr=PAYEE1PPTMKRohKRxJqlRB0QGjHoGv&mid=PARB6332&msid=WES-4382&mtid=WES-4382&tn=PRB",
        "method": "GET",
        "fields": [
            {
                "name": "deep_link",
                "value": "tez://upi/pay?ver=01&mode=15&am=200.00&mam=200.00&cu=INR&pa=payee1@example1&pn=1SHOP&mc=5816&tr=PAYEE1PPTMKRohKRxJqlRB0QGjHoGv&mid=PARB6332&msid=WES-4382&mtid=WES-4382&tn=PRB"
            }
        ]
      }
    }
}