Authenticate and request a user's timeline with Twitter API 1.1 oAuth

Question

This morning I have received the dreaded 'The Twitter REST API v1 is no longer active. Please migrate to API v1.1.' error in a few of my web sites.

Previously I have been using javascript/json to make these calls to http://api.twitter.com/1/statuses/user_timeline.json? to display a timeline.

As this is no longer available I need to adopt the new 1.1 API process.

I need to do the following using HttpWebRequest objects not a 3rd party application:

1. Authenticate using oauth key and secret
2. Make an authenticated call to pull back to display users timeline

Answer 1

Here is what I did to get this working in a simple example.

I had to generate an oAuth consumer key and secret from Twitter at:

https://dev.twitter.com/apps/new

I deserialized the authentication object first to get the token and type back in order to authenticate the timeline call.

The timeline call simply reads the json as that is all I need to do, you may want to deserialize it yourself into an object.

I have created a project for this at : https://github.com/andyhutch77/oAuthTwitterWrapper

Update - I have updated the github project to include both asp .net web app & mvc app example demos and nuget install.

// You need to set your own keys and screen name var oAuthConsumerKey = "superSecretKey"; var oAuthConsumerSecret = "superSecretSecret"; var oAuthUrl = "https://api.twitter.com/oauth2/token"; var screenname = "aScreenName";  // Do the Authenticate var authHeaderFormat = "Basic {0}";  var authHeader = string.Format(authHeaderFormat,     Convert.ToBase64String(Encoding.UTF8.GetBytes(Uri.EscapeDataString(oAuthConsumerKey) + ":" +     Uri.EscapeDataString((oAuthConsumerSecret))) ));  var postBody = "grant_type=client_credentials";  HttpWebRequest authRequest = (HttpWebRequest)WebRequest.Create(oAuthUrl); authRequest.Headers.Add("Authorization", authHeader); authRequest.Method = "POST"; authRequest.ContentType = "application/x-www-form-urlencoded;charset=UTF-8"; authRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;  using (Stream stream = authRequest.GetRequestStream()) {     byte[] content = ASCIIEncoding.ASCII.GetBytes(postBody);     stream.Write(content, 0, content.Length); }  authRequest.Headers.Add("Accept-Encoding", "gzip");  WebResponse authResponse = authRequest.GetResponse(); // deserialize into an object TwitAuthenticateResponse twitAuthResponse; using (authResponse) {     using (var reader = new StreamReader(authResponse.GetResponseStream())) {         JavaScriptSerializer js = new JavaScriptSerializer();         var objectText = reader.ReadToEnd();         twitAuthResponse = JsonConvert.DeserializeObject<TwitAuthenticateResponse>(objectText);     } }  // Do the timeline var timelineFormat = "https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name={0}&include_rts=1&exclude_replies=1&count=5"; var timelineUrl = string.Format(timelineFormat, screenname); HttpWebRequest timeLineRequest = (HttpWebRequest)WebRequest.Create(timelineUrl); var timelineHeaderFormat = "{0} {1}"; timeLineRequest.Headers.Add("Authorization", string.Format(timelineHeaderFormat, twitAuthResponse.token_type, twitAuthResponse.access_token)); timeLineRequest.Method = "Get"; WebResponse timeLineResponse = timeLineRequest.GetResponse(); var timeLineJson = string.Empty; using (timeLineResponse) {     using (var reader = new StreamReader(timeLineResponse.GetResponseStream()))     {          timeLineJson = reader.ReadToEnd();     } }   public class TwitAuthenticateResponse {     public string token_type { get; set; }     public string access_token { get; set; } } 

Answer 2

Created a JS only solution to get Twitter posts on your site without using new API - can now specify number of tweets too: http://goo.gl/JinwJ