Best way to represent a UUID in Avro? -

i curious understand best practice encoding 1 specific type of data within avro: uuids.

so far, way found defining custom uuid:

{   "namespace" : "your.namespace",   "type" : "fixed",   "name" : "uuid",   "size" : 16 } 

i'm using scala, defined implicit conversion between java.util.uuid , custom uuid, it's not of hassle use it.