public object SignIn([FromBody] SignInDTO requestUser) { try { using (var context = new TodoAppContext()) { using (MD5 md5Hash = MD5.Create()) { var user = context.users.Where(u => (u.email == requestUser.credential || u.username == requestUser.credential)).FirstOrDefault(); if (user == null) { return(NotFound()); } string currPassword = GetMd5Hash(md5Hash, requestUser.password); if (!VerifyMd5Hash(md5Hash, requestUser.password, user.password)) { return(Request.CreateResponse(HttpStatusCode.NotFound)); } var BASIC = CryptographyService.EncryptValue($"{user.username}:{user.password}"); var result = new { username = user.username, name = user.name, lastName = user.lastName, email = user.email, basicTkn = BASIC }; //HttpContext.Current.Response.AppendHeader("Basic", BASIC); //Request.Headers.Add("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes($"{user.username}:{user.password}"))); return(Request.CreateResponse(HttpStatusCode.OK, result)); } }; } catch (Exception e) { return(Request.CreateResponse(HttpStatusCode.BadRequest, e)); } }