curl --request POST \
--url https://api.example.com/v1/customer-sessions/{sessionId}/upgrade-checkoutCreates a checkout session for the selected product in this customer session and returns a checkout URL.
curl --request POST \
--url https://api.example.com/v1/customer-sessions/{sessionId}/upgrade-checkoutCustomer session ID
"9a12833f942007f39e0ea3713e3a75fd"
Upgrade checkout session created successfully