UserController.java

package com.booleanuk.api.user;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.server.ResponseStatusException;

import java.nio.file.Path;
import java.util.List;

@RestController
@RequestMapping("users")
public class UserController {

    @Autowired
    private UserRepository userRepository;

    @GetMapping
    public ResponseEntity<List<User>> getAll(){
        return ResponseEntity.ok(userRepository.findAll());
    }

    @PostMapping
    public ResponseEntity<User> createUser(@RequestBody User user){
        return new ResponseEntity<User>(this.userRepository.save(user), HttpStatus.CREATED);
    }

    @PutMapping("/{id}")
    public ResponseEntity<User> updateUser(@PathVariable int id, @RequestBody User user){
        User userToUpdate = this.userRepository.findById(id).orElseThrow(
                () -> new ResponseStatusException(HttpStatus.NOT_FOUND, "Not found")
        );

        userToUpdate.setUsername(user.getUsername());
        userToUpdate.setPassword(user.getPassword());
        return new ResponseEntity<User>(this.userRepository.save(userToUpdate), HttpStatus.CREATED);
    }

    @DeleteMapping("/{id}")
    public ResponseEntity<User> deleteUser(@PathVariable int id){
        User userToDelete = this.userRepository.findById(id).orElseThrow(
                () -> new ResponseStatusException(HttpStatus.NOT_FOUND, "Not found")
        );

        this.userRepository.delete(userToDelete);
        return ResponseEntity.ok(userToDelete);
    }
}