league/omnipay paypal package integration / usage

Hi. I am trying to enable Paypal payments on Laravel 9 using league/omnipay omnipay/paypal package. However, I get the following error when calling the charge method:

"Omnipay\Common\Item::__construct(): Argument #1 ($parameters) must be of type ?array, string given, called in ...\vendor\omnipay\common\src\Common\ItemBag.php on line 72"

These are my __construct and charge methods:

public function __construct() {
    $this->gateway = Omnipay::create('PayPal_Rest');
    $this->gateway->setClientId(env('PAYPAL_CLIENT_ID'));
    $this->gateway->setSecret(env('PAYPAL_CLIENT_SECRET'));
    $this->gateway->setTestMode(true); // false in production server
}


public function charge(Request $request) {
    if($request->method() == 'POST') {
        try {
            $response = $this->gateway->purchase(array(
                'amount' => $request->input('amount'),
                'items' => array(
                    'name' => $request->input('title'),
                    'price' => $request->input('amount'),
                ),
                'currency' => env('PAYPAL_CURRENCY'),
                'returnUrl' => url('success'),
                'cancelUrl' => url('error'),
            ))->send();

            if ($response->isRedirect()) {
                $response->redirect();
            } 
            else {
                $response->getMessage();
            }
        } catch(Exception $e) {
            return $e->getMessage();
        }
    }
}

I followed this tutorial: https://youtu.be/M9rk1ZB94u4 but can't get it to work. Any idea on where is the array required as param? Would appreciate any help.

rodrigo.pedra

3 years ago

Best Answer

Level 56

As in the acompaning article of the video you shared:

https://artisansweb.net/paypal-payment-gateway-integration-in-laravel/

The items key should be an array of items, where each item is defined as an associative array.

Try this:

$response = $this->gateway->purchase(
    [
        'amount' => $request->input('amount'),
        'items' => [ // note a new pair of brackets wrapping this item
            ['name' => $request->input('title'), 'price' => $request->input('amount')],
        ],
        'currency' => env('PAYPAL_CURRENCY'),
        'returnUrl' => url('success'),
        'cancelUrl' => url('error'),
    ],
)->send();

1 like

rodrigo.pedra

3 years ago

Level 56

By the way, never use env() outside of config files. Move this env keys to a config file and use the config helper.

If you happen to cache your project's config, which you should do in production to make it faster, env() will return null as stated in the docs:

https://laravel.com/docs/9.x/configuration#configuration-caching

1 like

GuillermoAzFz

3 years ago

Level 1

@rodrigo.pedra Thank you! Will consider config helper. The param worked out fine

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