C# & Facebook API

Question

I'm currently using the Facebook API and C#.

What i'm trying to do is upload an image to an event.

I've tried two methods, but neither seem to work. Could someone please take a look.

Method 1

        Dictionary<string, string> args = new Dictionary<string, string>();
        string source = "@test.jpg";
        string relpath = "/1234456789/photos";
        args.Add("message", "sssssss");
        args.Add("access_token", api.AccessToken);
        args.Add("source", source);
        api.Post(relpath, args);

Method 2

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(String.Format("http://graph.facebook.com/1234456789/photos")); 
        request.ContentType = "multipart/form-data"; 
        request.Method = "POST";

        string path = HttpUtility.UrlEncode("test.jpg");
        request.BeginGetRequestStream(ar => 
        { 
            using (StreamWriter writer = new StreamWriter((ar.AsyncState as HttpWebRequest).EndGetRequestStream(ar))) 
            { 
                writer.Write("{0}={1}&", "message", HttpUtility.UrlEncode("Test")); 
                writer.Write("{0}=@{1}&", "source", path);
                writer.Write("{0}={1}", "access_token",
                    api.AccessToken); 
            } 
        }, request);

Method 3

        WebClient client = new WebClient();

        byte[] responseBinary = client.UploadFile("http://localhost:61689/Widgets/test2.aspx", "POST", @"C:\test.jpg");

        string response = Encoding.UTF8.GetString(responseBinary);

        Dictionary<string, string> args = new Dictionary<string, string>();

        string relpath = "https://graph.facebook.com/me/picture";
        args.Add("message", "sssssss");
        args.Add("access_token", GetAccessToken(code));
        args.Add("source", response); 

        api.Post(relpath, args);

In method 3 i'm trying to create the response and write that. I'm getting 400 bad request.

The image 'test.jpg' currently sits in my website root, same as the page calling it.

Answer 1

Hey Robert, not sure if this is what is causing it, but in Example 1 it looks like you are trying to use a string literal on the JPG name, but if so, the @ symbol needs to be outside the quotes...

@"good morning" // a string literal