Spring MVC Restcontroller - Validation

CustomerController.java

package com.example.validation;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import javax.validation.Valid;

@Slf4j
@RestController
public class CustomerController {

  @PostMapping
  public void createCustomer(@Valid @RequestBody Customer customer) {
    log.info("Valid customer: {}", customer);
  }
}