The extensions endpoint on DriveItems

Question

Functionally it seems that POSTing a payload such as {"extensionName": "<some_unique_name>", "Custom Field": "Custom Value"} to a DriveItem's /extensions endpoint seems to work - it returns a 201, although it also returns a message in the body of the response indicating an internal error.

This endpoint is not mentioned in the documentation though - will it be supported in the future but just hasn't been finalised & documented yet? Or is it something that was supported in the past but has been phased out of the documentation and will eventually be phased out functionally too?

Answer 1

Hi @Nicolaas Burgers,

Currently extensionName resource only support to add custom data to users. You could refer to following document

https://learn.microsoft.com/en-us/graph/extensibility-open-users?tabs=http

There is no informtion about it will be supported for DriveItem in the future. We will continue to pay attention to this API and notify you in time if there is any updates.

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