Example logging with Kotlin

ProfileController.kt

// ...elided package and imports... //
import com.example.profileservice.logging.logger

@RestController
class ProfileController @Autowired constructor(
        val profileRepository: ProfileRepository
) {
    // This is how you create a logger
    val log = logger()

    @RequestMapping("/profiles", method = arrayOf(RequestMethod.GET))
    fun getProfileByEmail(
        @RequestParam(value = "email") email: String
    ): DeferredResult<ResponseEntity<Profile>> {

        // Info level logging operation
        log.info("Fetching profile for email={}", email)
        
// ...elided controller code... //