Omnipay Stripe Extra Parameters - stripe-payments

Question

Im trying to use the Omnipay API with Stripe, but I can't pass in extra parameters such as "Name", "Metadata", or "Zip".
// The token is grabbed from stripe JS
$this->stripe_gateway = Omnipay::create('Stripe');
$response = $this->stripe_gateway->purchase([
'amount' => $amount,
'currency' => 'usd',
'name' => $name,
'description' => $product->title,
'zip_address' => $zip,
'metadata' => [
'name' => $name,
'user_id' => $this->session->get('id')
],
'token' => $stripeToken,
])->send();
I cant get anything to work, is this not built into the API?

Answer 1

Omnipay uses it's own parameter names, not Stripe's. That's because Omnipay tries to abstract most of the differences between the various payment gateways.
Right now, the omnipay/stripe package doesn't support sending some of those parameters (only amount, currency, description, and now metadata). You can see the supported parameters here:
https://github.com/omnipay/stripe/blob/master/src/Message/AuthorizeRequest.php
That said, you can still easily access the underlying Stripe request to add your own custom parameters:
$request = $this->stripe_gateway->purchase([
'amount' => $amount,
'token' => $stripeToken,
'metadata' => ['foo' => 'bar'],
]);
$data = $request->getData();
$data['zip_address'] = '12345';
$data['another_custom_parameter'] = 'wow';
$response = $request->sendData($data);
Note that:
$data = $request->getData();
$response = $request->sendData($data);
is exactly the same as calling:
$response = $request->send();
Alternatively, you could create a pull request to add extra parameters to the Omnipay Stripe package. I just added the metadata parameter as an example of this:
https://github.com/omnipay/stripe/commit/99c82dc42c7c0b9ec58d8c4fb917f3dc5d1c23e2