how to view the post that mentions us by using c# and this API. I had write some code. then it give this error:
The remote server returned an error: (401) Unauthorized.
i dont understand why this is happen and how do i need to do to solve this issue. this is my code:
protected void getMentionV1(string resource_url, string q)
{
resource_url = https://api.twitter.com/1.1/statuses/mentions_timeline.json
// oauth application keys
var oauth_token = accessToken;
var oauth_token_secret = accessTokenSecret;
var oauth_consumer_key = consumerKey;// =
var oauth_consumer_secret = consumerSecret;
// oauth implementation details
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
// unique request details
var oauth_nonce = Convert.ToBase64String(new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow
- new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
// create oauth signature
var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&q={6}";
var baseString = string.Format(baseFormat,
oauth_consumer_key,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauth_token,
oauth_version,
Uri.EscapeDataString(q)
);
baseString = string.Concat("GET&", Uri.EscapeDataString(resource_url), "&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauth_consumer_secret),
"&", Uri.EscapeDataString(oauth_token_secret));
string oauth_signature;
using (HMACSHA1 hasher = new HMACSHA1(ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
oauth_signature = Convert.ToBase64String(
hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(baseString)));
}
// create the request header
var headerFormat = "OAuth oauth_nonce=\"{0}\", oauth_signature_method=\"{1}\", " +
"oauth_timestamp=\"{2}\", oauth_consumer_key=\"{3}\", " +
"oauth_token=\"{4}\", oauth_signature=\"{5}\", " +
"oauth_version=\"{6}\"";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(oauth_nonce),
Uri.EscapeDataString(oauth_signature_method),
Uri.EscapeDataString(oauth_timestamp),
Uri.EscapeDataString(oauth_consumer_key),
Uri.EscapeDataString(oauth_token),
Uri.EscapeDataString(oauth_signature),
Uri.EscapeDataString(oauth_version)
);
ServicePointManager.Expect100Continue = false;
var postBody = "screen_name=" + Uri.EscapeDataString(q);//
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();
gvTweet.DataSource = reader.ReadToEnd();
gvTweet.DataBind();
string html = "";
try
{
JArray jsonDat = JArray.Parse(objText);
for (int x = 0; x < jsonDat.Count(); x++)
{
html += jsonDat[x]["id"].ToString() + "<br/>";
html += jsonDat[x]["text"].ToString() + "<br/>";
html += jsonDat[x]["created_at"].ToString() + "<br/><hr/>";
}
mydiv.InnerHtml = html;
}
catch (Exception twit_error)
{
mydiv.InnerHtml = html + twit_error.ToString();
}
}
Please help me. Thanks in advance
