Custom Parameter for paypal direct payment rest API

Question

I am using paypal REST API for making direct payments. I want to create internal transaction id before initiating the transaction and use that for identifying the transactions from my end.

I am trying to set id using

 $payment = new Payment();
 $payment->setId($tId);

Paypal is approving the request and payment is getting done but I am not getting this id in response.

Is there any way by which I can send custom parameters to paypal and get them back in response?

Answer 1

You can use custom variable to pass your custom data, and paypal will return it backto you in post in response.

<input type="hidden" name="amount" value="<?php echo $totalAmount; ?>"/>
<input type="hidden" name="business" value="your_paypal_biz_id"/>
<input type="hidden" name="notify_url" value="<?php echo site_url(); ?>/zad_notify.php"/>
<input type="hidden" name="item_name" value="Image editing"/>
<input type="hidden" name="currency_code" value="USD"/>
<input type="hidden" name="return" value="<?php echo $paypalReturnUrl; ?>"/>
<input type="hidden" name="cancel_return" value="<?php echo site_url(); ?>/payment_error.php?id=<?php echo $sr_no; ?>"/>
<input type="hidden" name="custom" value="<?php echo $sr_no; ?>" />

alternatively you can also pass your id in notify url as query string parameter and you will get it back in return url file.

 <input type="hidden" name="amount" value="<?php echo $totalAmount; ?>"/>
    <input type="hidden" name="business" value="your_paypal_biz_id"/>
<input type="hidden" name="notify_url" value="<?php echo site_url(); ?>/zad_notify.php?id=5"/>
    <input type="hidden" name="item_name" value="Image editing"/>
    <input type="hidden" name="currency_code" value="USD"/>
    <input type="hidden" name="return" value="<?php echo $paypalReturnUrl; ?>"/>
    <input type="hidden" name="cancel_return" value="<?php echo site_url(); ?>/payment_error.php?id=<?php echo $sr_no; ?>"/>

Hope this help to you, :)