Why every credentials members are transformed into string?

[EarthMessenger]

I'm using credentials as the login method. I pass boolean values and numbers into the signIn method with signIn("credentials", { num: 1, str: "1", bool: true });, but they become strings in the authorize method.

Is this the expected behavior? If so, is there an elegant way to verify that a string is a number using Zod?

You can see a reproduction of this issue here: https://github.com/EarthMessenger/authjs-credentials-report.git.

[Ekozmaster]

Hey there, I got the same issue today. Did you find a proper answer?