AuthTokenHandler.kt

@Component
class AuthTokenHandler {

    @Autowired
    private lateinit var tokenAPIHandler: TokenAPI

    fun getUserFromToken(token : String?) : User {
        if (token == null)
            throw AuthenticationException()

        try {
            return tokenAPIHandler.getUserByToken(token)
        } catch (e: Exception) {
            throw AuthenticationException()
        }
    }
}