Javalin 4: How to write properly check in call to Validator.check()? - kotlin

Question

I am trying to adopt existing code of parameter validation from Javalin 3 to Javalin 4. It uses Javalin's Validator class. Here's the code I've got (rewritten):
val messageId = ctx.pathParamAsClass<String>("messageId")
.check(check = { it.trim().matches(Uuid.REGEX) }, errorMessage = "message id must be a UUID")
.get()
.trim()
And I am getting compile error for the check() call:
e:
/home/ivan/.../SourceFile.kt: (53, 6): None of the following functions can be called with the arguments
supplied:
public final fun check(check: Check<String> /* = (String) -> Boolean */, error: ValidationError<String>):
Validator<String> defined in io.javalin.core.validation.Validator
public final fun check(check: Check<String> /* = (String) -> Boolean */, error: String): Validator<String> defined in
io.javalin.core.validation.Validator
I can't understand why there is an error. I assume I should have matched second overload of check(). How to write it correctly?
Note: I have read Javalin 3 to 4 migration guide, which gives example like this:
ctx.queryParamAsClass<Int>("age")
.check({ it >= 18 }, ValidationError("AGE_TOO_LOW", args = mapOf("minAge" to 18)))
.get()
which I seem to follow, except I give it error message as string, but there's matching overload. So what is wrong here?

Answer 1

The cause was that second parameter of check() is called error, not errorMessage, i.e. correct code is like this:
...
.check(check = { it.trim().matches(Uuid.REGEX) }, error = "...")
...