Authenticate and request a user's timeline wit

问题:

This morning I have received the dreaded \'The Twitter REST API v1 is no longer active.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

回答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; }
}

回答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