Onepage

What it does

This class manages the one-page checkout process in Magento 2, handling the complete flow from quote initialization to order placement.

Developers interact with this class when customizing checkout behavior, such as saving shipping/billing addresses, payment methods, or implementing custom checkout flows.

It coordinates between quote, customer sessions, and order creation while supporting guest, registered, and customer checkout methods.

Public Methods

• getCheckout()
• getQuote()
• setQuote()
• getCustomerSession()
• initCheckout()
• getCheckoutMethod()
• saveCheckoutMethod()
• saveShipping()
• saveShippingMethod()
• savePayment()
• saveOrder()
• getLastOrderId()