How to verify tokens from SWA to App function

Hello

I recently started working on SWA with AD B2C.
There is also app function build in SWA and successfully deployed them and checked API works .

Now, I'm wondering if I can validate the tokens sent from SWA to App function API ?
I found `authentication header` and `x-ms-auth-token header` which are JWT.
Successfully they are decoded and included some userInfo and now I want to validate those tokens with `jsonwebtoken` or some other library.

However, I couldn't find the jwks_url which should have public keys for those tokens.

Is it even possible?
It would be really appreciated if you can help me.

Thank you so much.