available_free_bundles), which is useful when presenting the customer with a list of possible free gifts during checkout.
oauth/tokeninfo. The response will contain some useful info such as the application type, the owner, and the associated roles, permissions, and scopes.
SalesInvoice). This is useful for tax returns in the US.
v1.5.0features robust improvements on how the application state is managed, which translates into a speed boost and offers a way to hook on each user action. The checkout flow has also been streamlined by introducing auto-selection of the shipping method when the shipment only has a single shipping method available.