---
url: https://canary.warp-drive.io/api/@warp-drive/core/types/identifier.md
description: >-
  Types for the stable keys that reference cached data, `ResourceKey` for
  resources and `RequestKey` for request documents, plus their deprecated
  identifier aliases.
---

## Types

* [NewResourceKey](types/NewResourceKey.md)
* [PersistedResourceKey](types/PersistedResourceKey.md)
* [RequestKey](types/RequestKey.md)
* [CacheKeyType](types/CacheKeyType.md)
* [ResourceKey](types/ResourceKey.md)
* [~~StableDocumentIdentifier~~](types/StableDocumentIdentifier.md)
* [~~StableExistingRecordIdentifier~~](types/StableExistingRecordIdentifier.md)
* [~~StableRecordIdentifier~~](types/StableRecordIdentifier.md)