Collection Etag bug

[jasondove 0]

I'm working on synchronizing collections from Emby to another system, and while additions to a collection correctly change the collection's etag, removing an item from the collection does not. For example:

1. Check the etag for an existing collection (e.g. AAA)
2. Add an item to the collection
3. Check the etag on the collection; now BBB
4. Remove the item from the collection
5. Check the etag on the collection; still BBB

Ideally, the etag would be updated whenever the collection is modified.

[Abobader 3464]

Hello jasondove,

** This is an auto reply **

Please wait for someone from staff support or our members to reply to you.

It's recommended to provide more info, as it explain in this thread:

Thank you.

Emby Team

[Happy2Play 9780]

Not sure I follow as I don't see any item tags in Collection.

I am guessing you are referring to Genres as the additional genre of an item is not automatically remove from the Collection when item is removed, unlike when item it is added. 

Requiring the Collection to be Refreshed to remove Genre. @Luke

Doing a Refresh all or Search for missing on the Collection will remove the rogue genre.

[jasondove 0]

To clarify, I am using the API and `Etag` is an additional field that can be returned from the `/Items` endpoint. My understanding is that an Etag is supposed to change whenever the resource (in this case the collection) changes. Unfortunately it only appears to be changing when adding items to a collection and not when removing them.

[jasondove 0]

Perhaps this would be better suited to the Developer API section?

[Luke 42077]

It's here. It's on my to do list for review.