#path(/id/{uuid})
fn get(uuid: uuid) -> Customer:
    service.get(uuid)?or(404)

#path(?firstname={name})
fn get(name: string) -> Customer:
    if name:
        service.get(id)
    else:
        404

#path(/)
fn get() -> list:
    service.get_all()

#path(/)
fn post(customer: Customer):
    service.add(customer)


#path()
fn put(customer: Customer):
    service.update(customer)