Micronaut vs Spring Boot: Comparación práctica para microservicios JVM

1@Service
2class UserService(
3    private val userRepository: UserRepository
4) {
5    fun findAll(): List<User> = userRepository.findAll()
6}

1@Singleton
2class UserService(
3    private val userRepository: UserRepository
4) {
5    fun findAll(): List<User> = userRepository.findAll()
6}

1@RestController
2@RequestMapping("/api/users")
3class UserController(private val userService: UserService) {
4
5    @GetMapping
6    fun getAll(): ResponseEntity<List<User>> = ResponseEntity.ok(userService.findAll())
7
8    @GetMapping("/{id}")
9    fun getById(@PathVariable id: Long): ResponseEntity<User> =
10        userService.findById(id)?.let { ResponseEntity.ok(it) }
11            ?: ResponseEntity.notFound().build()
12
13    @PostMapping
14    fun create(@RequestBody @Valid user: User): ResponseEntity<User> =
15        ResponseEntity.status(HttpStatus.CREATED).body(userService.save(user))
16}

1@Controller("/api/users")
2class UserController(private val userService: UserService) {
3
4    @Get
5    fun getAll(): List<User> = userService.findAll()
6
7    @Get("/{id}")
8    fun getById(@PathVariable id: Long): HttpResponse<User> =
9        userService.findById(id)?.let { HttpResponse.ok(it) }
10            ?: HttpResponse.notFound()
11
12    @Post
13    fun create(@Body @Valid user: User): HttpResponse<User> =
14        HttpResponse.created(userService.save(user))
15}