In Chapter 7, we will create a service that will handle audio files and extract ID3 tags. If you've jumped ahead and created the service already, here is how you can utilize it. As always, there are several methods for accomplishing anything, and you can jump to the There's more... section to see another extension that extracts the ID3 metadata.
2. Upload an audio file. Verify that ID3 tags exist in the file, and upload it. The service will be executed automatically upon file indexing.