Rental options

Call this before rendering an order form or cache it for a short period. These values are server-controlled and must not be hard-coded.

Response 200

{"energy_per_portion":65000,"max_energy":1300000,"duration_hours":[1],"intake_enabled":true}

Field	Type	Description
energy_per_portion	integer	Size of one Energy portion.
max_energy	integer	Maximum Energy in one order.
duration_hours	integer[]	Allowed rental durations in hours.
intake_enabled	boolean	true while new orders are accepted.

Client-side validation

energy must be positive, no greater than max_energy, and divisible by energy_per_portion. duration_hours must exactly match an item in the response.

The server remains the source of truth because options can change between this request and order creation.

Errors

Possible statuses are 401, 429, and 503, all using the shared Problem Details format.