Attach multiple notes to item via web API

[Annabelle Wiegart]

Hi,

Has there been any change regarding the creation of items via Zotero web API? Suddenly, I'm unable to attach multiple note items to an existing book item with pyzotero like so:

book_id = 'P25VEQF7'
notes = [{'itemType': 'note', 'note': '7 mögliche Dublette(n) in DNB_A 2026_11', 'tags': [], 'collections': [], 'relations': {}}, {'itemType': 'note', 'note': 'Quelle: DNB_A 2026_11', 'tags': [], 'collections': [], 'relations': {}}]

ZOT.create_items(notes, book_id)

I'm getting the following error (example):

pyzotero.zotero_errors.PreConditionFailed:
Code: 412
URL: https://api.zotero.org/groups/4868937/items/P25VEQF7
Method: PATCH
Response: Item has been modified since specified version (expected 1198157, found 1198154)

The item was not modified except by my script. Up until last week, the same code has worked fine for months.

Best,

Annabelle

[Dan Stillman]

This will probably work now.

pyzotero does this in a bit of a weird and inefficient way (creating
top-level notes in a batch and then modifying each one to be a child
note of the specified parent item, instead of just creating child notes
in a single batch request), and a recent change to the API's object
versioning behavior broke the specific pattern being used. It should now
work again, though it would still be better for pyzotero to just create
the child notes in one go.

Explanation here: https://github.com/zotero/dataserver/commit/e4f8b081b

[Stephan Hügel]

Thanks Dan. Inefficiency hopefully fixed in https://github.com/urschrei/pyzotero/pull/302

[Annabelle Wiegart]

Thank you Dan. That was extremely quick. It’s working again on my end now.

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