PUT Vehicle - C#

namespace Rest_Put_Vehicle_Example
{
    class Program
    {
        static void Main()
        {
            // Token call goes here, see Rest_Token_Example

            // App Id from Fleetmatics Integration Manager (FIM)
            string appId = "companyname-p-us-4654sdf4fa351af65dsf1d";

            // Put Vehicle URI
            string putVehicleUri = "https://fim.api.ENV.fleetmatics.com/cmd/v1/vehicles/";

            // Local variables that correspond to put body fields
            string vehicleNum = "0112358";
            string vehicleName = "TESTER";
            string registrationNumber = "GA23423";
            string vin = "1GNDX03E5YD117167";
            string make = "Ford";
            string model = "F150";
            int? year = 2012;
            double? tankCapacity = 20.5;
            double? highwayMPG = 14.5;
            double? cityMPG = 11.5;
            int? vehicleSize = 1;

            // Create new PUT_Vehicle object
            var rest_put = new PUT_Vehicle();

            // Pass in local variables to create a vehicle object
            rest_put.CreateNewPutVehicle(vehicleName, vehicleNum, registrationNumber, vin, make, model, year, tankCapacity, highwayMPG, cityMPG, vehicleSize);

            // Call method to execute the API call
            rest_put.PutVehicle(/* token object or auth string passed here */, putVehicleUri, appId);
        }
    }
}

using System;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Web.Script.Serialization;

namespace Rest_Put_Vehicle_Example
{
    public class PUT_Vehicle
    {
         private Vehicle _vehicle { get; set; }

         public void PutVehicle(/* token object or auth string passed here */, string putVehicleUri, string appId)
         {
            // Construct authentication header for FIM
            string authHeader = string.Format("Atmosphere atmosphere_app_id={0}, Bearer {1}", appId, /* token authentication string goes here */);

	    // Serialize vehicle object into JSON for PUT body
            string vehicleContent = new JavaScriptSerializer().Serialize(_vehicle);

	    // Create the body, pass in serialized data and set content type
            string bodyContent = new StringContent(vehicleContent, Encoding.UTF8, "application/json");

            // Begin new HttpClient. Use "using" to ensure the resource is released
            using (HttpClient client = new HttpClient())
            {
                client.DefaultRequestHeaders.Accept.Clear();
                client.DefaultRequestHeaders.TryAddWithoutValidation("Authorization", authHeader);     // Pass in FIM auth header

                // Pass in URI and append the vehicle number, supply bodyContent, and execute REST PUT
                using(HttpResponseMessage response = client.PutAsync(putVehicleUri + _vehicle.VehicleNumber, bodyContent).Result)
	        {
                    Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);       // Logging

                    // True if HttpStatusCode was in the successful range (200-299); otherwise false
                    if (response.IsSuccessStatusCode)
                    {
                        // Clear vehicle object and return
                        _vehicle = null;
                        return;
                    }

                    // If this is reached, the call has failed
                    switch (response.StatusCode)
                    {
                        case HttpStatusCode.Unauthorized:
                            // Optional token renewal here, see Rest_Token_Example
                            break;
                            /*
                              ... Other cases here
                            */
                        default:
                            // Take another action
                            break;
                    }
                }
            }
        }

        // Public method used to create the vehicle object which will be used in the body for the PUT command
        public void CreateNewPutVehicle(string name, string number, string registrationNumber, string vin, string make, string model,
                                    int? year, double? tankCapacity, double? highwayMpg, double? cityMpg, int? vehicleSize)
        {
            _vehicle = new Vehicle
            {
                Name = name,
                VehicleNumber = number,
                RegistrationNumber = registrationNumber,
                VIN = vin,
                Make = make,
                Model = model,
                Year = year,
                TankCapacity = tankCapacity,
                HighwayMPG = highwayMpg,
                CityMPG = cityMpg,
                VehicleSize = vehicleSize
            };
        }
    }

    public class Vehicle
    {
        public string VehicleNumber { get; set; }
        public string Name { get; set; }
        public string RegistrationNumber { get; set; }
        public string VIN { get; set; }
        public string Make { get; set; }
        public string Model { get; set; }
        public int? Year { get; set; }
        public double? TankCapacity { get; set; }
        public double? HighwayMPG { get; set; }
        public double? CityMPG { get; set; }
        public int? VehicleSize { get; set; }
    }
}