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I am trying to access my own timeline on Twitter.

On web browswer like google chrome or firefox, this can be accessed on this url: Account ID

It is not required to login to just view this page.

I am trying to do the same using Web Client or Http Client in Csharp Winform project.

Somehow, I was able to download the html page from twitter.

However, html page is just an error message saying that "This browser is no longer supported".

I tried to change the agent but it does not really work.

I only need to check what is the latest post in the twitter with simplest code as possible.

Can I achieve this with Web Client or Http Client without using other heavy libary or APi ?

Can someone share some working code ?

What I have tried:

using (WebClient client = new WebClient())

                client.Headers.Add("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko);)");
                client.DownloadFile(url, "twitter.html");

Updated 14-Feb-21 7:15am
auto9817 14-Feb-21 10:44am    
Just getting one raw html file of time line from twitter is more than sufficient, I guess. Hope there is some work around on this.
RickZeeland 14-Feb-21 12:30pm    
Are you using the standard WebBrowser control in your form maybe?
auto9817 14-Feb-21 12:47pm    
Yes, one of the form has webBroswer control. But I do not understand how webBrowser control is related to callinig WebClient or HttpClient.
RickZeeland 14-Feb-21 13:00pm    
In the title you say: "this browser is no longer supported"
auto9817 14-Feb-21 13:06pm    
Yes, that is the exact error showed up on the html file received using WebClient connection. It is strange. I am using WebClient and they recognize me using some sort of Web Broswer, which is not.

1 solution

Try this: Twitter user timeline parsing in c# using dynamic... · GitHub[^]

It could also be a TLS problem, see: httpwebrequest - WebClient request fails because client is seen as outdated browser - Stack Overflow[^]

It could also be that you are using the standard .NET WebBrowser control, which is quite old.
Instead you could try a newer browser control like CefSharp, see: CefSharp - Fast web browser for WinForms and WPF Apps[^]

Or the new Microsoft Edge WebView2 control.
See: Taking the new Chromium WebView2 Control for a Spin in .NET - Part 1 - Rick Strahl's Web Log[^]
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auto9817 14-Feb-21 13:15pm    
When the form is loaded. This code for TLS is executed too. Apparently, this code is not placed in the same function as the WebClient. I call this code only once in the Form Loading.

ServicePointManager.Expect100Continue = true;

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;

ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

But still it does not work. I am getting the same error.
RickZeeland 14-Feb-21 13:17pm    
What could also help is upgrading to a newer .NET version 4.5 or higher if you are still using an older version.
auto9817 14-Feb-21 13:18pm    
I use 4.52 .NET Framework at the moment for your information.

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