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What-if Post charge (rollup delta)

POST
/v1/actions/hospitality.action.post_charge/whatif
curl --request POST \
  --url https://api.aerandil.com/v1/actions/hospitality.action.post_charge/whatif \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "branch": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "params": { "amount": { "amount": "example", "currency": "example" }, "bucket": "rooms", "description": "example", "gratuity": { "amount": "example", "currency": "example" }, "outlet_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "service_item_id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "system_charge_kind": "room_night", "tax_lines": [ { "amount": { "amount": "example", "currency": "example" }, "basis_amount": { "amount": "example", "currency": "example" }, "code": "example", "inclusive": true, "jurisdiction": "example", "rate": "example" } ] }, "return_modified": false, "target": { "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0", "object_type": "hospitality.folio" } }'

What-if projection of apply_hospitality_action_post_charge — 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.post_charge:apply scope as apply. An action that emits no rooms-fact events yields an empty daily_rooms.

Authorizations

Section titled “Authorizations”

Request Bodyrequired

Section titled “Request Bodyrequired”
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
amount
required
Amount
object
amount
required
string format: decimal
currency
required
string format: iso-4217
bucket
required
USALI 12 department
string
Allowed values: rooms food_beverage health_club_spa golf parking minibar other_operated minor_operated miscellaneous_income it_services retail
description
required
Description
string
gratuity
Gratuity / service charge added on top of the amount
object
amount
required
string format: decimal
currency
required
string format: iso-4217
outlet_id
required
USALI 12 outlet the charge rolls up to (proposal 0023)
string format: uuid
service_item_id
Service item
string format: uuid
system_charge_kind
System-generated charge kind
string
Allowed values: room_night day_use tax service_charge gratuity adjustment package_discount forfeited_deposit no_show_fee cancellation_fee no_show_revenue
tax_lines
Per-jurisdiction tax decomposition (each lands as a tax_application)
Array<object>
object
amount
required
object
amount
required
string format: decimal
currency
required
string format: iso-4217
basis_amount
object
amount
required
string format: decimal
currency
required
string format: iso-4217
code
required
string
inclusive
required
boolean
jurisdiction
required
string
rate
required
string format: decimal
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.folio

Responses

Section titled “Responses”

200

Section titled “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
Examplegenerated
{
  "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

Section titled “Headers”
Cache-Control
string
Allowed value: no-store

Always no-store — derived, uncommitted data.

422

Section titled “422”

Validation error — the apply would be rejected.