`rating.dropped`

Fires when an app’s aggregate rating crosses below a threshold you set, or falls by a delta versus the last observed aggregate. Carries the common envelope plus the fields below.

Payload fields

Field	Type	Notes
`transition_id`	string	`hash(store + app_id + current_rating + rating_count)`: identity. This is the event’s `occurrence_id`. Deterministic, so re-observing the same aggregate dedupes.
`previous_rating`	float	Last observed aggregate.
`current_rating`	float	Newly observed aggregate.
`delta`	float	`current − previous` (negative on a drop).
`rating_count`	integer	Total ratings backing the current aggregate.
`trigger`	enum	`threshold` or `delta` (which rule fired).
`threshold`	float \| null	The configured threshold, when `trigger` is `threshold`.

Rules

A hook can set a threshold (1–5) and/or a delta (0–4); at least one is required.

threshold: fire when current_rating crosses below the threshold.
delta: fire when the rating falls by at least that much versus the last observation.

The first time Rustle observes an app’s rating it seeds the baseline silently (no event), so you only hear about movement from there on. Re-observing an unchanged aggregate never re-fires. See Filters & storefronts.

Example

{
  "event_id": "sample-rating-event-id",
  "occurrence_id": "sample-transition",
  "event_type": "rating.dropped",
  "store": "google",
  "app_id": "com.example.app",
  "subscriber_id": "zapier-sample",
  "occurred_at": "2026-06-01T12:00:00Z",
  "observed_at": "2026-06-01T12:05:00Z",
  "schema_version": 1,
  "transition_id": "sample-transition",
  "previous_rating": 4.2,
  "current_rating": 3.9,
  "delta": -0.3,
  "rating_count": 12345,
  "trigger": "threshold",
  "threshold": 4.0
}

You can fetch a synthetic example any time from GET /api/v1/sample?event_type=rating.dropped.

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Rustle Docs

rating.dropped

Payload fields

Rules

Example

`rating.dropped`