private void btnGetMyInfo_Click(object sender, RoutedEventArgs e)
{
var fb = new Facebook(txtAccessToken.Text);
// using async method, silverlight supports only async methods
fb.GetAsync("/me",
result =>
{
// incase you are using async,
// always check if it was successful.
if (result.IsSuccessful)
{
// this prints out the raw json, // make sure u write on the appropriate thread
WriteLine(result.RawResponse + "\n");
// this mite be preferable - the generic version of the result
var user = result.GetResponseAs<User>();
WriteLine("Hi " + user.Name);
}
else
{
// exception is stored in result.Exception
// u can extract the message using result.Exception.Message
// or u can get raw facebook json exception using result.Response.
WriteLine("Error: " + "\n" + result.Exception.Message + "\n");
}
});
//// example for posting on the wall:
//fb.PostAsync("/me/feed",
// new Dictionary<string, string>
// {
// { "message", "testing form Silverlight FacebookSharp" }
// },
// result =>
// {
// if (result.IsSuccessful)
// {
// WriteLine("New post id" + result.RawResponse);
// }
// else
// {
// WriteLine("Error: " + "\n" + result.Exception.Message + "\n");
// }
// });
//// example for deleting
//fb.DeleteAsync("/id",
// result =>
// {
// if (result.IsSuccessful)
// {
// WriteLine(result.RawResponse);
// }
// else
// {
// WriteLine("Error: \n" + result.Exception.Message);
// }
// });
}
public static FacebookAuthenticationResult Parse(string url, FacebookSettings facebookSettings)
{
IDictionary <string, string> paramters;
if (url.StartsWith("http://www.facebook.com/connect/login_success.html"))
{
Uri uri = new Uri(url);
if (!string.IsNullOrEmpty(uri.Fragment))
{
var pars = FacebookUtils.ParseUrlQueryString(uri.Fragment);
paramters = new Dictionary <string, string>();
foreach (var p in pars)
{
if (p.Key.StartsWith("#"))
{
paramters.Add(p.Key.Substring(1), p.Value[0]);
}
else
{
paramters.Add(p.Key, p.Value[0]);
}
}
}
else
{
var pars = FacebookUtils.ParseUrlQueryString(url);
paramters = new Dictionary <string, string>();
foreach (var p in pars)
{
paramters.Add(p.Key, p.Value[0]);
}
}
return(new FacebookAuthenticationResult(paramters));
}
// for now don't allow to parse silverlight and windows phone web,
// coz ExchangeAccessTokenForCode needs to have async version.
#if !(SILVERLIGHT || WINDOWS_PHONE)
else
{
// its from web
var uri = new Uri(url);
var pars = FacebookUtils.ParseUrlQueryString(uri.Query);
paramters = new Dictionary <string, string>();
foreach (var p in pars)
{
paramters.Add(p.Key, p.Value[0]);
}
if (paramters.ContainsKey("signed_request"))
{ // if we are accessing from iframe canvas
// note: needs to enable Canvas Session Parameter and OAuth 2.0 for Canvas (beta) in Migration Tab in app settings.
// might add other features later on.
if (facebookSettings == null)
{
throw new ArgumentNullException("facebookSettings");
}
if (string.IsNullOrEmpty(facebookSettings.ApplicationSecret))
{
throw new ArgumentNullException("facebookSettings.ApplicationSecret");
}
IDictionary <string, object> jsonObject;
if (!ValidateSignedRequest(paramters["signed_request"], facebookSettings.ApplicationSecret, out jsonObject))
{
throw new InvalidSignedRequestException();
}
return(new FacebookAuthenticationResult(jsonObject));
}
else if (paramters.ContainsKey("code"))
{ // incase this is from the web, we need to exchange the code with access token
if (facebookSettings == null)
{
throw new ArgumentNullException("facebookSettings");
}
long expiresIn;
string accessToken = Facebook.ExchangeAccessTokenForCode(paramters["code"],
facebookSettings.ApplicationKey,
facebookSettings.ApplicationSecret,
facebookSettings.PostAuthorizeUrl,
facebookSettings.UserAgent,
out expiresIn);
return(new FacebookAuthenticationResult(accessToken, expiresIn, null));
}
}
#endif
// if its parse error
return(new FacebookAuthenticationResult(string.Empty, 0, string.Empty));
}
public FacebookApiRestSharpMessage(Facebook fb)
: base(fb)
{
BaseUrl = ApiBaseUrl;
}
