Spring Reactive xml payload exception java.lang.IllegalStateException: Failed to resolve argument 0 of type 'reactor.core.publisher.Mono'

Question

I have a spring boot application. trying to send xml payload through postman to a Post request. I get the following exception

java.lang.IllegalS         


        

Answer 1

Not sure why but as I can see it uses Jaxb2XmlDecoder for decoding XML payload and decodeToMono method is not implemented there.

To fix this you can use Flux type as a requestBody