Change reservation occupancy

POST

/v1/actions/hospitality.action.change_reservation_occupancy/apply

curl --request POST \
  --url https://api.aerandil.com/v1/actions/hospitality.action.change_reservation_occupancy/apply \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "branch": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "params": { "adults": 1, "children": 1, "override_nightly_rate": { "amount": "example", "currency": "example" }, "override_reason": "example", "pricing_policy": "keep_rate" }, "return_modified": false, "target": { "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "object_type": "hospitality.reservation_room" } }'

• Production API

Change one reservation_room’s guest counts — allowed pre-arrival and in-house (an extra guest joining mid-stay is normal operations). The new adults + children must fit the leg’s room type max_occupancy. The leg’s nights re-price per the required pricing_policy (keep_rate leaves them; requote reads the grid at the new adult count — occupancy-based pricing as a first-class re-price, the Mews gap; override takes the supplied rate with its reason; requote_added_nights_only has no meaning here and is refused). Reservation-level totals re-derive as the sum across legs.

Effects: modify hospitality.reservation_room; modify hospitality.reservation; modify hospitality.reservation_night; modify hospitality.payment_request.

Step-up when pricing_policy is override: a person (a User principal) needs a fresh desk step-up proof — Pricing nights at a typed-in rate overrides the house’s published price — or the call is refused 403 step_up_required before anything runs. Re-enter the passcode at POST /v1/desk/sessions/{id}/passcode and retry. Machine principals are not gated.

Authorizations

• aerandil_oauth
  actions:apply
• aerandil_oauth
  actions:hospitality.action.change_reservation_occupancy:apply

Request Body^required

Media typeapplication/json

object

branch

Apply against an open branch’s overlay view instead of the canonical (main) plane. The action’s writes land in the branch’s copy-on-first-write overlay, its events in the branch’s own stream, and the invocation is journaled for merge-by-replay. Branch writes are action-only, so this is the write-side entry point to a branch (POST /v1/branches forks one).

string format: uuid

params

required

object

adults

required

Adults

integer

children

required

Children

integer

override_nightly_rate

Nightly rate for pricing_policy = override

object

amount

required

string format: decimal

currency

required

string format: iso-4217

override_reason

Why the override price (required with pricing_policy = override)

string

pricing_policy

required

How affected nights re-price (required; never silent)

string

Allowed values: keep_rate requote requote_added_nights_only override

return_modified

When true, the response carries modified_objects and modified_links projections — the engine reads the event log inside the same transaction so the projection observes the handler’s own writes.

boolean

target

required

object

id

required

string format: uuid

object_type

required

Allowed value: hospitality.reservation_room

Responses

200

Action applied. modified_objects and modified_links populated when return_modified: true was supplied.

Media typeapplication/json

ApplyActionResponse

Envelope returned by the Aerandil action engine. correlation_id ties every event emitted by this invocation; modified_objects and modified_links project the events the handler emitted (per the action’s declared effects); warnings carries any non-blocking soft-validator observations.

object

correlation_id

required

Per-invocation correlation id; matches events.correlation_id for every event this action appended.

string format: uuid

modified_links

required

Links established or removed by this invocation. Empty when the caller did not request return_modified.

Array<object>

object

from_id

required

string format: uuid

from_type

required

string

kind

required

Allowed values: linked unlinked properties_updated end_dated

link_type

required

string

to_id

required

string format: uuid

to_type

required

string

modified_objects

required

Objects created, modified, or soft-deleted by this invocation. Empty when the caller did not request return_modified.

Array<object>

object

id

required

string format: uuid

kind

required

Allowed values: modified

object_type

required

Allowed values: hospitality.reservation_room hospitality.reservation hospitality.reservation_night hospitality.payment_request

warnings

Non-blocking soft-validator observations emitted during this invocation (e.g. comp-authority over-limit, recipe pour-cost over sell-price). Absent when no warnings were emitted.

Array<object>

object

message

required

Human-readable summary, suitable for logging or operator-UI surfacing.

string

object_type

required

Object type the warning was raised against.

string

property

Property the warning anchors to, when a single field is the locus. Absent for multi-field rules.

string

rule

required

Stable kebab-case rule identifier (e.g. comp-authority-over-limit).

string

Example

{
  "modified_links": [
    {
      "kind": "linked"
    }
  ],
  "modified_objects": [
    {
      "kind": "modified",
      "object_type": "hospitality.reservation_room"
    }
  ]
}

403

step_up_required — a person applied this without a fresh desk step-up proof; nothing ran.

409

Conflict — concurrent modification or unique constraint violation.

422

Validation error — parameter validation or business-rule violation.