# anonymousIdAsync

fun anonymousIdAsync(): [CompletableFuture](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/CompletableFuture.html)<[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)?>

[anonymousId](/developers/references/android/id-frak-sdk/frakclient/anonymousid/) for Java.