---
title: "fetchAllDataStoreIdentifiers(_:)"
framework: webkit
role: symbol
role_heading: Type Method
path: "webkit/wkwebsitedatastore/fetchalldatastoreidentifiers(_:)"
---

# fetchAllDataStoreIdentifiers(_:)

Fetches an array of identifiers from existing data stores that have identifiers.

## Declaration

```swift
class func fetchAllDataStoreIdentifiers(_ completionHandler: @escaping @MainActor @Sendable ([UUID]) -> Void)
```

```swift
class var allDataStoreIdentifiers: [UUID] { get async }
```

## Parameters

- `completionHandler`: A block to invoke with the fetched list of unique identifiers.