What-if Record guest message (rollup delta)

POST

/v1/actions/hospitality.action.record_guest_message/whatif

curl --request POST \
  --url https://api.aerandil.com/v1/actions/hospitality.action.record_guest_message/whatif \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "branch": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "params": { "anchor_reservation_id": "example", "author_kind": "guest", "author_principal": "example", "channel": "sms", "channel_thread_id": "example", "content_hash": "example", "conversation_id": "example", "detected_language": "example", "direction": "inbound", "external_record_id": "example", "language": "example", "person_id": "example", "received_at": "2026-04-15T12:00:00Z", "redacted_excerpt": "example", "redactions_applied": [ "pan" ], "template_id": "example", "word_count": 1 }, "return_modified": false, "target": { "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "object_type": "hospitality.property" } }'

• Production API

What-if projection of apply_hospitality_action_record_guest_message — previews the action (execute-and-roll-back) and folds its would-be events into rollup deltas, returning the contribution an apply would make to the daily_rooms fact (ADR / RevPAR / TRevPAR / Occupancy inputs) without persisting anything. Requires the same actions:hospitality.action.record_guest_message:apply scope as apply. An action that emits no rooms-fact events yields an empty daily_rooms.

Authorizations

• aerandil_oauth

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

anchor_reservation_id

Optional reservation anchor (sets `conversation.anchor_reservation_ref`)

string

author_kind

Author kind (guest / staff_human / staff_agent / system)

string

Allowed values: guest staff_human staff_agent system

author_principal

`principal.stable_id()` of the author when not the guest

string

channel

Communication channel (a reply into a named conversation may omit it)

string

Allowed values: sms whatsapp email web_chat app_chat voice_ivr ota_inbox social_dm in_room_device other

channel_thread_id

External system thread identifier (taken from the guest's last message on a reply)

string

content_hash

SHA-256 of the original message bytes (outbound: derived from the excerpt when absent)

string

conversation_id

Existing conversation to append to (handler opens one when absent)

string

detected_language

BCP-47 language tag

string

direction

required

inbound or outbound

string

Allowed values: inbound outbound

external_record_id

Optional pointer to the external record reference

string

language

Initial language for new conversations (BCP-47)

string

person_id

The guest's person id (a reply into a named conversation takes the conversation's)

string

received_at

When the message arrived (inbound, required) or was sent (outbound; omitted = now, the kernel sending it)

string format: date-time

redacted_excerpt

required

PII-stripped excerpt (default cap 280 chars)

string

redactions_applied

required

Per-message redaction kinds

Array<string>

Allowed values: pan cvv government_id health_disclosure child_safeguarding other_pii

template_id

WhatsApp Business template id (required outside 24-hour window)

string

word_count

Optional word count

integer

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.property

Responses

200

Rollup deltas the action would contribute, computed and rolled back.

Media typeapplication/json

object

daily_rooms

required

Per (property, business_date) additive contribution to the rooms rollup.

Array<object>

object

business_date

required

string format: date

currency

ISO 4217, when the fold observed one.

string

property_id

required

string format: uuid

rooms_revenue_net_delta

required

Decimal, net rooms revenue delta.

string

rooms_sold_delta

required

integer format: int64

total_revenue_net_delta

required

Decimal, net total revenue delta.

string

Example^generated

{
  "daily_rooms": [
    {
      "business_date": "2026-04-15",
      "currency": "example",
      "property_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
      "rooms_revenue_net_delta": "example",
      "rooms_sold_delta": 1,
      "total_revenue_net_delta": "example"
    }
  ]
}

Headers

Cache-Control

string

Allowed value: no-store

Always no-store — derived, uncommitted data.

422

Validation error — the apply would be rejected.