Using the `
affirm.checkout.open()` function, you can direct your customers to Affirm's secure payment portal. This guide outlines the steps for executing this feature.
## Implementation Steps
Initiate the checkout process by creating your checkout object with `
affirm.checkout()`. To transition the customer to the Affirm Checkout portal, call `
Here's a code example to guide you through the process:
## Parameters and Callbacks
### Method Arguments
|`||Required||The object containing the essential data for customer checkout.|
### Callback Mechanisms
It's important to note that this method typically doesn't return a value. You should set redirection URLs using the checkout object. If your metadata setting isn't set to 'modal,' you'll need to implement the following callback functions:
**onFail**: Called when the customer exits, cancels or is declined in the Affirm checkout flow.
**onSuccess**: Triggered upon successful confirmation of the Affirm loan. This function yields a success object, which contains a `
checkout_id`. Note that this `
checkout_id` will be the value used to authorize the loan in the following Authorization request.
**onOpen**: Called when Affirm Checkout is successfully initialized on the user interface.
**onValidationError**: Alerts you in case of a validation error during the checkout request.