Submit payer details

Name and email for an anonymous session, which then shows an account.

Public, guarded by the reference being random rather than by a credential. This is what the payer’s browser calls; your server does not need it.

Public. Only for a session in awaiting_details.

{ "customer_name": "Bolu Adeyemi", "customer_email": "bolu@example.com" }

Answers the same body as the GET, now pending with the account showing. The countdown restarts here, so the fifteen minutes is spent on the transfer rather than on typing.

Calling it on a session that is already past that point returns the current state rather than an error, so the page can simply re-render.

Checkout has the context around this call.