# Checkout

- [checkoutSession](/sdk-reference/ts-js-v3/function-references/pay/checkout/checkoutsession.md)
- [getSession](/sdk-reference/ts-js-v3/function-references/pay/checkout/getsession.md)
- [getLineItems](/sdk-reference/ts-js-v3/function-references/pay/checkout/getlineitems.md)