Introduction
In this tutorial we will learn how to post a Tweet on Twitter.com using ASP.Net and C#. The Twitter website was built to make it easy for developers to access certain functions on the website like posting.
Step 1. Setting up the Form
1. Create a new Web Form named "Default.aspx".
2. Place a TextBox on the Form called "TextBox1".
3. Place a Button on the Form named "Button1".
4. These are the only controls that we need as we will be Hard Coding the Login info in the Code Behind
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Step 2. The Tweet Code
1. Open up the Code-Behind for the Form "Default.aspx.cs" by double clicking on the button Control.
2. Copy the code below into your program.
3. Find the Lines that look like this:
string username = "YOUR_USER_NAME";
string password = "YOUR_PASSWORD";
and insert your user name and password inside the quotes.
4. Now build then run the program
5. Insert text into the TextBox and click the button, after a few seconds this should post a Tweet onto your account.
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protected void Button1_Click(object sender, EventArgs e)
{
string username = "YOUR_USER_NAME";
string password = "YOUR_PASSWORD";
string tweet = TextBox1.Text;
try {
// encode the username/password
string user =
Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(username + ":" + password));
// determine what we want to upload as a status
byte[] bytes = System.Text.Encoding.ASCII.GetBytes("status=" + tweet);
// connect with the update page
HttpWebRequest request =
(HttpWebRequest)WebRequest.Create("http://twitter.com/statuses/update.xml");
// set the method to POST
request.Method="POST";
request.ServicePoint.Expect100Continue = false;
// thanks to argodev for this recent change!
// set the authorisation levels
request.Headers.Add("Authorization", "Basic " + user);
request.ContentType="application/x-www-form-urlencoded";
// set the length of the content
request.ContentLength = bytes.Length;
// set up the stream
Stream reqStream = request.GetRequestStream();
// write to the stream
reqStream.Write(bytes, 0, bytes.Length);
// close the stream
reqStream.Close();
}
catch (Exception ex)
{/* DO NOTHING */}
}
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It should look like this once you are completed.
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Conclusion
In this tutorial we learned how to Post a Tweet on Twitter.com using C# and ASP.NET. This can come in handy for making custom Twitter web pages, or Twitter Applications.