Ayax0
commented
2 months ago Okay, I have found a solution to this problem. I just have to execute the lean() function on the query object. Then the type is recognized correctly.
return await userDb.find().lean();I don't know if it is possible to offer a solution here that also works otherwise. If not, this issue can be closed.
Environment
Package Manager: npm@10.1.0
Reproduction
https://stackblitz.com/edit/github-7q39gn?file=_working.ts&view=editor
Describe the bug
In my project I use MongoDB and accordingly the library mongoose. If I now want to return my mongoose response directly in an EventHandler, the object is then of type unknown.
I was able to trace the problem back to the Serialize type of nitro: https://github.com/unjs/nitro/blob/v2/src/types/fetch/_serialize.ts
Through some tests I was able to determine that the mongoose object runs through the function up to line 43 (ReadonlyArray) the function NonJsonPrimitive has a negative outcome and accordingly Serialize is called recursively. The second itteration is stopped on line 37 and the type is returned on line 38 and then corresponds to unknown.
When I comment out lines 37 and 38 the type is successfully resolved and everything works as desired. Unfortunately I don't know enough about typescript to be able to estimate how the problem can be solved.
Additional context
https://github.com/nuxt/nuxt/issues/27968
Logs
No response