## 2. Users Microservice

UserController.java

@RestController
@Slf4j
@RequiredArgsConstructor
@RequestMapping("/")
public class UserController {

    //private final Environment env;
    private final UserService userService;
    private final Greeting greeting;

    @GetMapping("/health_check")
    public String status() {
        return "It's working in User Service";
    }

    @GetMapping("/welcome")
    public String welcome() {
        //return env.getProperty("greeting.message");
        return greeting.getMessage();
    }

    @PostMapping("/users")
    public ResponseEntity createUser(@RequestBody RequestUser user) {
        ModelMapper mapper = new ModelMapper();
        mapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);

        UserDto userDto = mapper.map(user, UserDto.class);
        userService.createUser(userDto);

        ResponseUser responseUser = mapper.map(userDto, ResponseUser.class);

        //return "Create user method is called";
        return ResponseEntity.status(HttpStatus.CREATED).body(responseUser);
    }
}

UserDto.java

@Data
public class UserDto {

    private String email;
    private String name;
    private String pwd;
    private String userId;
    private Date createdAt;

    private String encryptedPwd;
}

UserEntity.java

@Data
@Entity
@Table(name = "testusers")
public class UserEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(nullable = false, length = 50, unique = true)
    private String email;

    @Column(nullable = false, length = 50)
    private String name;

    @Column(nullable = false, unique = true)
    private String userId;

    @Column(nullable = false, unique = true)
    private String encryptedPwd;
}

UserRepository.java

public interface UserRepository extends CrudRepository<UserEntity, Long> {
}

RequestUser.java

@Data
public class RequestUser {

    @NotNull(message = "Email cannot be null")
    @Size(min = 2, message = "Email not be less than two characters")
    private String email;

    @NotNull(message = "Name cannot be null")
    @Size(min = 2, message = "name not be less than two characters")
    private String name;

    @NotNull(message = "Password cannot be null")
    @Size(min = 8, message = "Password must be equal or grater than 8 characters")
    private String pwd;
}

ResponseUser.java

@Data
public class ResponseUser {
    private String email;
    private String name;
    private String userId;
}

application.yml

server:
  port: 0

spring:
  application:
    name: user-service
  h2:
    console:
      enabled: true
      settings:
        web-allow-others: true
      path: /h2-console
  datasource:
    driver-class-name: org.h2.Driver
    url: jdbc:h2:mem:testdb
#    username: wcadmin
#    password: wcadmin1


eureka:
  instance:
    instance-id: ${spring.application.name}:${spring.application.instance_id:${random.value}}
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://127.0.0.1:8761/eureka

greeting:
  message: Welcome to the Simple E-commerce.