How to set the test mode while making OAuth payment?

[boryn]

I use the test .env MOLLIE_KEY beginning with 'test_', but it's not enough while doing authentication through OAuth - it's necessary to pass the 'testmode' parameter. I can see in the code:

$options["testmode"] = $this->mode === "test" ? true : false;

but how to set the $this->mode? There is no setMode() method and while issuing:

$payment = Mollie::api()->payments->create([
// ...

there is no place to set the mode either.

[sandervanhooft]

Please note
For normal webshop integrations, you will not need OAuth and it's far easier to use the default authentication - using keys. If this is the case, you simply use the test_ key for testing interactions with Mollie and swap it out when you're ready to go live.

If you however have more advanced use cases and/or need to act on behalf of other Mollie accounts, you will need OAuth.

Regarding your questions

1. you cannot use the test_ key with Oauth. You'll need the app secret and app id keys. More info here.

2. In order to use OAuth testmode you need to pass it in on each request you make:

$payment = Mollie::api()->payments->create([
    "testmode" => true,
    // ...
]);

In the Mollie API reference you can see at the very top which API endpoints support OAuth authentication ("App access tokens").

[boryn]

Thank you for your reply!

This is the application which already uses OAuth. We are implementing some new features and wanted to use the test environment.

Passing "testmode" => true, to Mollie::api()->payments->create() helped! (I suggest adding this example to the documentation, I could not figure it out).

[boryn]

If you stumble upon this thread, here it is how to pass the testmode to the get() method:

$payment = Mollie::api()->payments()->get($payment->id, ['testmode' => true]);

In case you get error, check if you had set the access token above:

Mollie::api()->setAccessToken($accessToken);