How to implement MagicURL Registration with email

try {
        await account.createMagicURLToken(ID.unique(), email);
    }
    catch (error: any) {
        console.log(error);
        throw new Error(error);
    }

This code actually doesn't work. I want a support.

Please check this doc page for more information https://appwrite.io/docs/references/1.5.x/client-web/account#createMagicURLToken

Can't I use that for user registration? Because unregistered user will not be having userId

I think you can't, you first have to register your user, what is your use case?

Like 3rd party auth, that makes users do registration via magic link, Social media, etc. Can't Appwrite do that?

Yes, read the docs: https://appwrite.io/docs/products/auth and use the corresponding method for your version of Appwrite