.NET error when trying to page through teams chat messages

Question

When calling graph API https://graph.microsoft.com/v1.0/chats/{chat-id}/messages we get the following error with HTTP 400 when following the link in nextLink(ie calling with skiptoken).

Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state. The collection's state is no longer correct.

A quick search lead me to dotnet/runtime#26868. Could this be an issue at the server side?

Answer 1

Hi Abin Simon,

Thanks for reaching out!

I understand that you are getting 400 error while querying endpoint-https://graph.microsoft.com/v1.0/chats/{chat-id}/messages

400 error occurs when the request can't be processed because it's malformed or incorrect.

I tried to reproduce from my end by retrieving the chat messages https://graph.microsoft.com/v1.0/chats/{chat-id}/messages

And try to execute the skiptoken from the response generated. I am able to get the success response.

Could you please verify that the skiptoken is being properly included in the URL. If it’s missing or malformed, it could lead to a 400 error.

Hope this helps.

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