AirwallexSession

Payment amount. This is the order amount you would like to charge your customer

The client secret for this session. Used for authenticating API requests.

Country code

Amount currency

The Customer who is paying for this PaymentIntent. This field is not required if the Customer is unknown (guest checkout). But it is required if the PaymentIntent is created for recurring payment.

Google Pay options

Control whether saved cards are displayed on the list screen

Whether or not billing information is required for card payments.

Whether or not email is required for card payments

Indicates whether this session is configured for Express Checkout. Returns true when the session uses a PaymentIntentProvider for lazy payment intent creation.

An array of payment method type names to limit the payment methods displayed on the list screen. Only available ones from your Airwallex account will be applied, any other ones will be ignored. Also the order of payment method list will follow the order of this array. API reference: https://www.airwallex.com/docs/api#/Payment_Acceptance/Config/_api_v1_pa_config_payment_method_types/get JSON Object field: items.name

Billing contact fields the SDK should collect (and validate) on the new-card payment screen. null means "derive from the legacy isBillingInformationRequired / isEmailRequired flags" so unmodified integrations keep current behavior. An empty set hides the entire billing section.

Effective set of billing contact fields, resolving null to the legacy boolean-derived defaults that match Android's pre-existing UI:

The URL to redirect your customer back to after they authenticate or cancel their payment on the PaymentMethod’s app or site. If you’d prefer to redirect to a mobile application, you can alternatively supply an application URI scheme.

Shipping information

Binds this session's PaymentIntentProvider to an Activity lifecycle. This ensures the provider is cleaned up when the Activity is destroyed. Should be called once when the session starts being used with a specific Activity.

Extension function to resolve PaymentIntent from session. If paymentIntent is available, calls callback immediately. If paymentIntentProvider is available (transient field), uses it to get the intent asynchronously. If paymentIntentProviderId is available (after binding), retrieves from repository.