spring cloud : e-commerce - create user

springcloud/user-service/build.gradle

@@ -24,8 +24,11 @@ ext {
 
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
 
+    implementation group: 'org.modelmapper', name: 'modelmapper', version: '2.4.4'
+
     runtimeOnly group: 'com.h2database', name: 'h2', version: '1.3.176'
     compileOnly 'org.projectlombok:lombok'
     developmentOnly 'org.springframework.boot:spring-boot-devtools'

springcloud/user-service/src/main/java/com/example/userservice/controller/UserController.java

@@ -1,11 +1,19 @@
 package com.example.userservice.controller;
 
+import com.example.userservice.dto.UserDto;
+import com.example.userservice.service.UserService;
 import com.example.userservice.vo.Greeting;
+import com.example.userservice.vo.RequestUser;
+import com.example.userservice.vo.ResponseUser;
 import lombok.RequiredArgsConstructor;
+import org.modelmapper.ModelMapper;
+import org.modelmapper.convention.MatchingStrategies;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
 
 @RestController
 @RequiredArgsConstructor
@@ -13,6 +21,7 @@ import org.springframework.web.bind.annotation.RestController;
 public class UserController {
 
     private final Greeting greeting;
+    private final UserService userService;
 
     @GetMapping("/health_check")
     public String status() {
@@ -23,4 +32,18 @@ public class UserController {
     public String welcome() {
         return greeting.getMessage() ;
     }
+
+    @PostMapping("/users")
+    public ResponseEntity<ResponseUser> createUser(@Valid @RequestBody RequestUser requestUser) {
+
+        ModelMapper mapper = new ModelMapper();
+        mapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);
+
+        UserDto userDto = mapper.map(requestUser, UserDto.class);
+        userService.createUser(userDto);
+
+        ResponseUser responseUser = mapper.map(userDto, ResponseUser.class);
+
+        return ResponseEntity.status(HttpStatus.CREATED).body(responseUser);
+    }
 }

springcloud/user-service/src/main/java/com/example/userservice/dto/UserDto.java

@@ -0,0 +1,17 @@
+package com.example.userservice.dto;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class UserDto {
+
+    private String email;
+    private String name;
+    private String pwd;
+    private String userId;
+    private LocalDateTime createdAt;
+
+    private String encryptedPwd;
+}

springcloud/user-service/src/main/java/com/example/userservice/entity/UserEntity.java

@@ -0,0 +1,24 @@
+package com.example.userservice.entity;
+
+import lombok.Data;
+import lombok.Getter;
+
+import javax.persistence.*;
+
+@Data
+@Entity
+@Table(name = "users")
+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)
+    private String encryptedPwd;
+}

springcloud/user-service/src/main/java/com/example/userservice/repository/UserRepository.java

@@ -0,0 +1,7 @@
+package com.example.userservice.repository;
+
+import com.example.userservice.entity.UserEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserRepository extends JpaRepository<UserEntity, Long> {
+}

springcloud/user-service/src/main/java/com/example/userservice/service/UserService.java

@@ -0,0 +1,8 @@
+package com.example.userservice.service;
+
+import com.example.userservice.dto.UserDto;
+
+public interface UserService {
+
+    void createUser(UserDto userDto);
+}

springcloud/user-service/src/main/java/com/example/userservice/service/UserServiceImpl.java

@@ -0,0 +1,30 @@
+package com.example.userservice.service;
+
+import com.example.userservice.dto.UserDto;
+import com.example.userservice.entity.UserEntity;
+import com.example.userservice.repository.UserRepository;
+import lombok.RequiredArgsConstructor;
+import org.modelmapper.ModelMapper;
+import org.modelmapper.convention.MatchingStrategies;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+public class UserServiceImpl implements UserService {
+
+    private final UserRepository userRepository;
+
+    @Override
+    public void createUser(UserDto userDto) {
+        userDto.setUserId(UUID.randomUUID().toString());
+
+        ModelMapper mapper = new ModelMapper();
+        mapper.getConfiguration().setMatchingStrategy(MatchingStrategies.STRICT);
+        UserEntity userEntity = mapper.map(userDto, UserEntity.class);
+        userEntity.setEncryptedPwd("encrypted_password");
+
+        userRepository.save(userEntity);
+    }
+}

springcloud/user-service/src/main/java/com/example/userservice/vo/RequestUser.java

@@ -0,0 +1,22 @@
+package com.example.userservice.vo;
+
+import lombok.Data;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+
+@Data
+public class RequestUser {
+
+    @NotBlank(message = "Email can not be null")
+    @Size(min = 2, message = "Email not less than 2 characters")
+    private String email;
+
+    @NotBlank(message = "Name can not be null")
+    @Size(min = 2, message = "Name not less than 2 characters")
+    private String name;
+
+    @NotBlank(message = "Password can not be null")
+    @Size(min = 8, message = "Password must be equal or grater than 8 characters")
+    private String pwd;
+}

springcloud/user-service/src/main/java/com/example/userservice/vo/ResponseUser.java

@@ -0,0 +1,11 @@
+package com.example.userservice.vo;
+
+import lombok.Data;
+
+@Data
+public class ResponseUser {
+
+    private String email;
+    private String name;
+    private String userId;
+}

springcloud/user-service/src/main/resources/application.yml

@@ -1,5 +1,5 @@
 server:
-  port: 0
+  port: 8081
 
 spring:
   application:
@@ -10,6 +10,11 @@ spring:
       settings:
         web-allow-others: true
       path: /h2-console
+  datasource:
+    driver-class-name: org.h2.Driver
+    url: jdbc:h2:mem:testdb
+    username: sa
+    password:
 
 eureka:
   instance: