Gone through all the code bit by bit but just can't find what is wrong, if I make postman getUsers request it works fine, but when I make the POST request I get the error:
ERROR 7388 --- [myApiPortifolio] [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.springframework.orm.ObjectOptimisticLockingFailureException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [com.myapps.myApiPortifolio.entities.User#0eb358b8-93d9-4fe1-a457-8a186d0788aa]] with root cause org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect):
It does not create the User to the database, here are my classes:
User Entity
package com.myapps.myApiPortifolio.entities;import jakarta.persistence.*;import java.util.List;import java.util.UUID;@Entity@Table(name = "tb_users")public class User { @Id @GeneratedValue(strategy = GenerationType.AUTO) private UUID id; private String username; private String email; private String password; @OneToMany(mappedBy = "user") private List<Account> accounts; public User() { } public User(UUID id, String username, String email, String password) { this.id = id; this.username = username; this.email = email; this.password = password; } public UUID getId() { return id; } public void setId(UUID id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public List<Account> getAccounts() { return accounts; } public void setAccounts(List<Account> accounts) { this.accounts = accounts; }}Account Entity
package com.myapps.myApiPortifolio.entities;import jakarta.persistence.*;import java.util.UUID;@Entity@Table(name = "tb_accounts")public class Account { @Id @GeneratedValue(strategy = GenerationType.AUTO) private UUID id; private String accountType; @ManyToOne @JoinColumn(name = "user_id") private User user; public Account() { } public Account(UUID id, String accountType) { this.id = id; this.accountType = accountType; } public UUID getId() { return id; } public void setId(UUID id) { this.id = id; } public String getAccountType() { return accountType; } public void setAccountType(String accountType) { this.accountType = accountType; } public User getUser() { return user; } public void setUser(User user) { this.user = user; }}CreateUserDto
package com.myapps.myApiPortifolio.entities.dtos;public record CreateUserDto(String username, String email, String password) {}UserRepository
package com.myapps.myApiPortifolio.repositories;import com.myapps.myApiPortifolio.entities.User;import org.springframework.data.jpa.repository.JpaRepository;import org.springframework.stereotype.Repository;import java.util.UUID;@Repositorypublic interface UserRepository extends JpaRepository<User, UUID> {}UserService
package com.myapps.myApiPortifolio.services;import com.myapps.myApiPortifolio.entities.User;import com.myapps.myApiPortifolio.entities.dtos.CreateUserDto;import com.myapps.myApiPortifolio.repositories.UserRepository;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import java.util.List;import java.util.UUID;@Servicepublic class UserService { @Autowired UserRepository userRepository; public UUID createUser(CreateUserDto createUserDto) { // DTO -> ENTITY User user = new User( UUID.randomUUID(), createUserDto.username(), createUserDto.email(), createUserDto.password() ); var createdUser = userRepository.save(user); return createdUser.getId(); } public List<User> getUsers() { return userRepository.findAll(); }}UserController
package com.myapps.myApiPortifolio.controllers;import com.myapps.myApiPortifolio.entities.User;import com.myapps.myApiPortifolio.entities.dtos.CreateUserDto;import com.myapps.myApiPortifolio.services.UserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.ResponseEntity;import org.springframework.web.bind.annotation.*;import java.net.URI;import java.util.List;@RestController@RequestMapping("/users")public class UserController { @Autowired UserService userService; @PostMapping public ResponseEntity<User> createUser(@RequestBody CreateUserDto createUserDto) { var userId = userService.createUser(createUserDto); return ResponseEntity.created(URI.create("/users/" + userId)).build(); } @GetMapping public ResponseEntity<List<User>> getUsers() { var users = userService.getUsers(); return ResponseEntity.ok(users); }}