CustomBrowser Callback

This section describes how to create an object of PayUCustomBrowserCallback. PayUCustomBrowserCallback provides the following callback methods:

• onPaymentFailure(String payuResult,String merchantResponse) – Calls when payment fails.
• onPaymentSuccess(String payuResult,String merchantResponse) – Calls when payment succeeds.
• onCBErrorReceived(int errorCode, String errormsg) – Called for any error in the custom browser.

The following error messages are thrown in the callback method:

• setCBProperties(WebView webview, Bank payUCustomBrowser)—Callback where webview setting is done.
• onBackButton(AlertDialog.Builder alertDialogBuilder)—This callback provides alert dialog access, so customisation can be done to alert dialog.
  • onBackApprove()—Calls when OK is selected from the alert dialog.
  • onBackDismiss()—Calls when Cancel is selected from the alert dialog.
• onPaymentTerminate()—Called when payment is terminated.
• isPaymentOptionAvailable(CustomBrowserResultData resultData)—Merchant must check for Samsung Pay/PhonePe payment option availability on customer device before showing Samsung Pay/PhonePe/Google Pay/UPI as a payment option. This callback is called in response of thecheckForPaymentAvailability method present in CustomBrowser. Merchants can use the value of resultData object similar to the following:
  • resultData.getPaymentOption()—Gives PaymentOption, that is, SamsungPay/PhonePe/Google Pay/UPI.
  • resultData.isPaymentOptionAvailable()—Boolean whether Payment through selected PaymentOption is possible.
  • resultData.getSamsungPayVpa()—Gives SamsungPay VPA associated with the device.
  • resultData.getErrorMessage()— Gives error message in case PaymentOption is not available.
    onVpaEntered(String vpa, PackageListDialogFragment packageListDialogFragment)(Available from version 7.3.0): Merchants must override this function and provide verifyVpaHash in case they want payment through UPI Collect flow.

packageListDialogFragment.verifyVpa(verifyVpaHash);

👉

Tip

To generate verifyVpaHash, use the validateVPA command and var1 as VPA address. To calculate the hash, refer to Hash Generation.

The sample code block for PayUCustomBrowserCallback:

PayUCustomBrowserCallback payUCustomBrowserCallback = new PayUCustomBrowserCallback() {
@Override
public void onPaymentFailure(String payuResponse,String merchantResponse) {
Intent intent = new Intent();
intent.putExtra(getString(R.string.cb_result), merchantResponse);
intent.putExtra(getString(R.string.cb_payu_response), payuResponse);
setResult(Activity.RESULT_CANCELED, intent);
finish();
}
@Override
public void onPaymentTerminate() {
}
@Override
public void onPaymentSuccess(String payuResponse,String merchantResponse) {
Intent intent = new Intent();
intent.putExtra(getString(R.string.cb_result), merchantResponse);
intent.putExtra(getString(R.string.cb_payu_response), payuResponse);
setResult(Activity.RESULT_OK, intent);
finish();
}
@Override
public void onCBErrorReceived(int code, String errormsg) {
}
@Override
public void setCBProperties(WebView webview, Bank payUCustomBrowser) {
webview.setWebChromeClient(new PayUWebChromeClient(payUCustomBrowser));
webview.setWebViewClient(new PayUWebViewClient(payUCustomBrowser,merchantKey));
webview.postUrl(url, payuConfig.getData().getBytes());
//comment above line if you are using CB is 6.1 or above
}
@Override
public void onBackApprove() {
PaymentsActivity.this.finish();
}
@Override
public void onBackDismiss() {
super.onBackDismiss();
}
@Override
public void onBackButton(AlertDialog.Builder alertDialogBuilder) {
super.onBackButton(alertDialogBuilder);
}
//Below method is available since version 7.1.3+
@Override
public void isPaymentOptionAvailable(CustomBrowserResultData resultData) {
Toast.makeText(PaymentsActivity.this, “isPaymentOptionAvailable”+resultData.getSamsungPayVpa() 
, Toast.LENGTH_SHORT).show();
}
//Below method is available since version 7.3.0+
@Override
public void onVpaEntered(String vpa, PackageListDialogFragment packageListDialogFragment) {
//Calculate validateVpahash using vpa and provide to verifyVpa method of 
PackageListDialogFragment like below.
packageListDialogFragment.verifyVpa(calculateHash(input));
}
};