abstract fun beforeBodyRead(inputMessage: HttpInputMessage, parameter: MethodParameter, targetType: Type, converterType: Class<out HttpMessageConverter<*>>): HttpInputMessage
Invoked second before the request body is read and converted.
parameter - the target method parameter
targetType - the target type, not necessarily the same as the method parameter type, e.g. for HttpEntity<String>.
converterType - the converter used to deserialize the body
Return
the input request or a new instance, never null