i am using last solution of this post to upload image on LinkedIn
here is my code:-
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using System.Web.Script.Serialization;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace LI
{
public partial class WebForm3 : System.Web.UI.Page
{
public string redirectUrl = "http://localhost:64576/WebForm3";
public string TokenGlobe = "";
public String apiKey = "API_KEY";
public string retval = "";
public String apiSecret = "API_Secret";
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
if (Request.QueryString["code"] != null)
{
VerifyAuthentication(Request.QueryString["code"]);
}
}
}
protected void btnTwit_Click(object sender, EventArgs e)
{
var Address = "https://www.linkedin.com/oauth/v2/authorization?response_type=code&client_id=" + apiKey + "&redirect_uri=http://localhost:64576/WebForm3&state=987654321&scope=w_share";
using (var webClient = new WebClient())
{
webClient.Headers.Add("x-li-format", "json");
}
Response.Redirect(Address);
}
public String VerifyAuthentication(string code)
{
string authUrl = "https://www.linkedin.com/oauth/v2/accessToken";
var sign1 = "grant_type=authorization_code&code=" + code + "&redirect_uri=" + redirectUrl + "&client_id=" + apiKey + "&client_secret=" + apiSecret + "";
var sign = "grant_type=authorization_code&code=" + HttpUtility.UrlEncode(code) + "&redirect_uri=" + HttpUtility.HtmlEncode(redirectUrl) + "&client_id=" + apiKey + "&client_secret=" + apiSecret;
HttpWebRequest webRequest = System.Net.WebRequest.Create(authUrl + "?" + sign) as HttpWebRequest;
webRequest.Method = "POST";
webRequest.Host = "www.linkedin.com";
webRequest.ContentType = "application/x-www-form-urlencoded";
Stream dataStream = webRequest.GetRequestStream();
String postData = String.Empty;
byte[] postArray = Encoding.ASCII.GetBytes(postData);
dataStream.Write(postArray, 0, postArray.Length);
dataStream.Close();
WebResponse response = webRequest.GetResponse();
dataStream = response.GetResponseStream();
StreamReader responseReader = new StreamReader(dataStream);
String returnVal = responseReader.ReadToEnd().ToString();
responseReader.Close();
dataStream.Close();
response.Close();
var stri = redirectUrl;
retval = returnVal.ToString();
var objects = JsonConvert.DeserializeObject<Accountdsdsd>(retval);
TokenGlobe = objects.access_token;
var SentStatus = PostLinkedInNetworkUpdate(TokenGlobe, "Hello API");
return TokenGlobe;
}
private string linkedinSharesEndPoint = "https://api.linkedin.com//v1/people/~/shares?oauth2_access_token={0}&format=json";
private const string defaultUrl = "http://localhost:64576/WebForm3";
private const string defaultImageUrl = "http://opusleads.com/opusing/technology/technology%20(1).jpg";
public bool PostLinkedInNetworkUpdate(string accessToken, string title, string submittedUrl = defaultUrl, string submittedImageUrl = defaultImageUrl)
{
var requestUrl = String.Format(linkedinSharesEndPoint, accessToken);
var message = new
{
comment = "Testing out the LinkedIn Share API with JSON",
content = new Dictionary<string, string>
{ { "title", title },
{ "submitted-url", submittedUrl },
{"submitted-image-url" , submittedImageUrl}
},
visibility = new
{
code = "anyone"
}
};
var requestJson = new JavaScriptSerializer().Serialize(message);
var client = new WebClient();
var requestHeaders = new NameValueCollection
{
{"Content-Type", "application/json" },
{"x-li-format", "json" }
};
client.Headers.Add(requestHeaders);
var responseJson = client.UploadString(requestUrl, "POST", requestJson);
var response = new JavaScriptSerializer().Deserialize<Dictionary<string, object>>(responseJson);
return response.ContainsKey("updateKey");
}
}
public class Accountdsdsd
{
public string access_token { get; set; }
public string expires_in { get; set; }
}
}
here i am use online image link:
private const string defaultImageUrl = "http://opusleads.com/opusing/technology/technology%20(1).jpg";
but when i try upload local drive image using fileupload button. it's not working for me.
What I have tried:
<pre> string imagePath = string.Empty;
if (FileUpload1.HasFile)
{
string fileName = System.IO.Path.GetFileName(FileUpload1.FileName);
imagePath = Server.MapPath("~/Images/" + fileName);
FileUpload1.SaveAs(imagePath) ;
}
Session["ImagePath"] = imagePath;
it's not working for me.. could any one suggest me the solution.