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v7

latestOpenAPI 3.0.3raw.githubusercontent.com2026-08-013764062.2 MB
Feature Types

Update feature type lifetime

Updates the lifetime configuration for the specified feature flag type. The expected lifetime is an integer representing the number of days before Unleash marks a feature flag of that type as potentially stale. If set to null or 0, then feature flags of that particular type will never be marked as potentially stale.

When a feature flag type's expected lifetime is changed, this will also cause any feature flags of this type to be reevaluated for potential staleness.

put/api/admin/feature-types/{id}/lifetime

Path parameters

idstring required

Request body

lifetimeDaysinteger nullable required

The new lifetime (in days) that you want to assign to the feature flag type. If the value is null or 0, then the feature flags of that type will never be marked as potentially stale. Otherwise, they will be considered potentially stale after the number of days indicated by this property.

Example request

{
  "lifetimeDays": 7
}

Response

featureTypeSchema

idstring required

The identifier of this feature flag type.

namestring required

The display name of this feature flag type.

descriptionstring required

A description of what this feature flag type is intended to be used for.

lifetimeDaysinteger nullable required

How many days it takes before a feature flag of this typed is flagged as potentially stale by Unleash. If this value is null, Unleash will never mark it as potentially stale.

Example response

{
  "id": "kill-switch",
  "name": "Kill switch",
  "description": "Kill switch feature flags are used to quickly turn on or off critical functionality in your system.",
  "lifetimeDays": 40
}