OAuth With Twitter On C# .NET

Simply put, I'm trying to create a webpage with Visual Studio 2012 wherein the user will log into a page, which, when authorized, will post a tweet, and enable them to use the rest of the features on the page. I'd like to remember said users credentials to also limit the rate at which they use a certain feature.

The problem is, I have been searching for days and I am unable to find an UP TO DATE and working example for me to follow. Everything seems to be outdated. (Twitterizer ; TweetSharp) I've switched from Java to C# & .NET and still no progress.

I am now seeking direct help.. Code snippets .. Tutorials .. Anything .. So that I can accomplish this task. I'm new to .NET but used to Java & C/C++ so I don't expect to be confused by too trivial of code..

My exact request is to be able to log in with twitter, save credentials (or the user's access token, whatever) & post a tweet.

回答1:

This is a basic example of how to authenticate and retrieve a user's timeline:

// 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; }
}

Please see here (The github project has asp.net and asp.net mvc examples):

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

I created an an open source project for it but unfortunately it doesn't yet include the ability to send tweets. I don't think it would be difficult but I am short on time at the moment.

If I was to implement it I would find out exactly what needs to be posted by the api, as detailed here:

https://dev.twitter.com/docs/api/1.1/post/statuses/update

回答2:

For the assisting of other persons who have fallen into the same gap I did... Check out this site

It will help with authenticating & signing in & retrieving basic information.