Multi tool use

How to catch exceptions from spring webflux controller?

I am using javax validations in my controller with @Valid @RequestBody. When the server receives invalid data it throws error but I want to handle that error and return custom formatted error. I am unable to catch exception in my controller advice. I am using spring webFlux so can't use the bindingResult. How can I handle that exception? Here is my code

@Valid @RequestBody

Controller

@PostMapping
fun createPerson(@Valid @RequestBody resource: PersonResource): Mono<Person> {
return personService.save(resource.toPerson())
}


Resource

data class PersonResource(
val id: String?,

@field:NotEmpty
val name: String,
...
}


ErrorHandler

@ControllerAdvice
class ApiErrorHandler {
@ExceptionHandler(IllegalArgumentException::class)
fun handleValidationErrors(e: IllegalArgumentException): ResponseEntity<*> {
// never reaches here
}
}


By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.