Omnipay: PayPal and Stripe sale_id for refund?

Question

I'm trying to refund transactions via Omnipay and it looks like Omnipay supports refunds . However the documentation isn't clear and I've some confusion about how to go about this.

Omnipay Example code for refund:

    $transaction = $gateway->refund(array(
        'amount'    => '10.00',
        'currency'  => 'AUD',
    ));
    $transaction->setTransactionReference($sale_id);
    $response = $transaction->send();
    if ($response->isSuccessful()) {
        echo "Refund transaction was successful!\n";
        $data = $response->getData();
        echo "Gateway refund response data == " . print_r($data, true) . "\n";
    }

What's the $sale_id here? My Payments table has transaction id saved as:

'PAYMENTINFO_0_TRANSACTIONID' => $data['PAYMENTINFO_0_TRANSACTIONID'],

Which looks like: 01H36802XU637613S (PayPal) & ch_1IYpA7BJRxbFR9rFrGmPKs85 (Stripe). Are these the $sale_id ?

Answer 1

This is really something Omnipay will likely have to answer on the whole, but maybe this helps:

ch_1IYpA7BJRxbFR9rFrGmPKs85 would be what you'd use to create a refund in Stripe:https://stripe.com/docs/api/refunds/create#create_refund-charge