Password must be provided to Basic auth

[devghor]

I found this error when I try to create a payment

   $payment = $client->request->post('/payments', [
        'order_id' => $orderKey,
        'currency' => $currencyCode,
   ]);

[PatrickMadsen]

When creating a new new QuickPay object you should write it like this
new QuickPay(":$api_key");
not new QuickPay(":{$api_key}");