experimental_resume is calling api/chat?chatId=undefined despite having set useChat(id)

[ShadowWalker2014]

Description

Hi while implementing experimental resume following the official guide, we ran into this issue:
experimental_resume makes call to api/chat?chatId=undefined
but we have provided id to useChat({ id: projectId })
and made sure that the projectId passed in is not undefined

Even the source code for useChat seems to suggest that the id will be provided or a fallback random ID will be created, but how come this is giving undefined value while making GET request?

Please help resolve this / provide some pointers, thanks in advance!

AI SDK Version

• resume-stream: 2.1.0
• ai: 4.3.15

[jeremyphilemon]

Hey @ShadowWalker2014, thanks for reporting! Can you confirm that you're using useChat from @ai-sdk/react, and if yes can you share the version?

[ShadowWalker2014]

@jeremyphilemon Hi, yes I am using useChat hook 100% (see original post)

Versions:
ai-sdk/react: 1.2.12
resume-stream: 2.1.0
ai: 4.3.15

for full list see below image: