Vikash Kumar

Vikash Kumar

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How to convert a JSON data from web API to a DataTable?

Sep 23 2016 9:11 AM
Hi, 
 
Here's a sample code and a json data
https://dev.twitter.com/rest/reference/get/followers/list
 Please take a look at the json data in the above link
I have tried this
 
var postBody = "screen_name=" + Uri.EscapeDataString(screen_name);//
resource_url += "?" + postBody;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resource_url);
request.Headers.Add("Authorization", authHeader);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
var response = (HttpWebResponse)request.GetResponse();
var reader = new StreamReader(response.GetResponseStream());
var objText = reader.ReadToEnd();
myDiv.InnerHtml = objText;/*s*/
DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(string));
dt.Columns.Add("id_str", typeof(string));
dt.Columns.Add("name", typeof(string));
dt.Columns.Add("screen_name", typeof(string));
dt.Columns.Add("location", typeof(string));
dt.Columns.Add("description", typeof(string));
dt.Columns.Add("url", typeof(string));
dt.Columns.Add("followers_count", typeof(string));
dt.Columns.Add("friends_count", typeof(string));
dt.Columns.Add("listed_count", typeof(string));
dt.Columns.Add("created_at", typeof(string));
dt.Columns.Add("favourites_count", typeof(string));
JArray jsonDat = JArray.Parse(objText);
using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(jsonDat)))
foreach (var datas in jsonDat.users)
{
dt.Rows.Add(datas.users.id, datas.users.id_str, datas.users.name, datas.users.screen_name, datas.users.location, datas.users.description, datas.users.url, datas.users.followers_count, datas.users.friends_count, datas.users.listed_count, datas.users.created_at, datas.users.favourites_count);
}
}
 
Also i have created a class named users
 
public class users
{
[JsonProperty("id")]
public string Id { get; set; }
[JsonProperty("id_str")]
public string id_str { get; set; }
[JsonProperty("name")]
public string name { get; set; }
[JsonProperty("screen_name")]
public string screen_name { get; set; }
[JsonProperty("location")]
public string location { get; set; }
[JsonProperty("description")]
public string description { get; set; }
[JsonProperty("url")]
public string url { get; set; }
[JsonProperty("followers_count")]
public string followers_count { get; set; }
[JsonProperty("friends_count")]
public string friends_count { get; set; }
[JsonProperty("listed_count")]
public string listed_count { get; set; }
[JsonProperty("created_at")]
public string created_at { get; set; }
[JsonProperty("favourites_count")]
public string favourites_count { get; set; }
}
}
 Need help on this
 
Thanks
 
 
 
 

Answers (17)