---
title: "getAvailableContentRuleListIdentifiers(_:)"
framework: webkit
role: symbol
role_heading: Instance Method
path: "webkit/wkcontentruleliststore/getavailablecontentrulelistidentifiers(_:)"
---

# getAvailableContentRuleListIdentifiers(_:)

Fetches the identifiers for all rule lists in the store asynchronously.

## Declaration

```swift
func getAvailableContentRuleListIdentifiers(_ completionHandler: (([String]?) -> Void)!)
```

```swift
func availableIdentifiers() async -> [String]?
```

## Parameters

- `completionHandler`: A completion handler block to call with the results. This block has no return value and takes the following parameter:

## See Also

### Accessing the Current Rule Lists

- [lookUpContentRuleList(forIdentifier:completionHandler:)](webkit/wkcontentruleliststore/lookupcontentrulelist(foridentifier:completionhandler:).md)