Resful APi C#

[Route("api/getvalue/{id:int}")]
        [HttpGet]
        // GET api/getvalue/5
        public string Get0(int id)
        {
            return "value " + id.ToString();
        }


        [Route("api/getvalue")]
        [HttpGet]
        // GET api/getvalue?id=5
        public string Get1(int id)
        {
            return "value " + id.ToString();
        }