About idempotencyKey #1283
Description
Is your feature request related to a problem? Please describe.
Now I need to implement a feature where I want to pass an idempotencyKey during payment, but it seems this is not supported here. After I passed the idempotencyKey through the integration for payment, it did not return the idempotencyKey. I would like to ask if the project supports this, or if the project has an order query feature. The issue we encountered is that the user's payment was successful, but Adyen returned a timeout or similar error, causing us to fail to receive the correct information. This led to the user making a second payment. Is there a specific method to check whether the order was successful after Adyen returns a failure, so we can determine if a second payment is needed?