Some follow-up questions about the Migration from ...

# ktor

[Helio]

Some follow-up questions about the Migration from Ktor 2.2.x to Ktor 3.x

When it comes to Principal Interface. It says it can be safely removed... But I'm not 100% sure of what that should be replaced with?

```@Deprecated("This interface can be safely removed")

public interface Principal```

For example, we were previously doing:

call.principal<Principal>().doSomethinghere(UsernameType.SUBJECT_AND_ISSUER)

[hfhbd]

Just replace it with your own interface or class. Ktor itself does not need the marker interface anymore.

[Helio]

And I suppose that's the same for ?

@Deprecated("This interface can be safely removed")
public interface Credential

[Aleksei Tirman [JB]]

Yes

[Helio]

This is awesome. I have just created a simple interface to replace them.