JSON Response Error

Question

HI Team,

I am trying to get JSON data by http url and then write Json Data console but geting bellow error: 

 

System.NullReferenceException

HResult=0x80004003

Message=Object reference not set to an instance of an object.

Source=Trail05

StackTrace:

at ReadCountryData.Program.Main(String[] args) in D:\CSOM_Dev\ENRICH TRAIL\Trail05\Trail05\Program.cs:line 45

Below is the Request URL:

https://services.odata.org/V3/Northwind/Northwind.svc/Customers?$format=json

Code:

using Newtonsoft.Json;

using System;

using System.Collections.Generic;

using System.Net.Http;

using System.Web;

namespace ReadCountryData

{

class Program

{

public class positionsobj

{

public positionlist positions { get; set; }

}

public class positionlist

{

public List position { get; set; }

}

public class position

{

public string CustomerID { get; set; }

public string CompanyName { get; set; }

}

static void Main(string[] args)

{

HttpClient http = new HttpClient();

string url = "https://services.odata.org/V3/Northwind/Northwind.svc/Customers?$format=json";

HttpResponseMessage response = http.GetAsync(new Uri(url)).Result;

var responseBody = response.Content.ReadAsStringAsync().Result;

Console.WriteLine(responseBody);

positionsobj position = JsonConvert.DeserializeObject(responseBody);

foreach (position item in position.positions.position)

{

Console.WriteLine("{0}", item.CustomerID);

}

Console.ReadLine();

}

}

}