public Task <string> AuthenticateUser([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "authenticate")] HttpRequest req, ILogger log)
        {
            User user = new User
            {
                Email      = "*****@*****.**",
                Name       = "Vidhya Sagar Reddy",
                Identifier = Guid.NewGuid().ToString()
            };

            return(accessTokenProvider.CreateJWTAsync(user));
        }