Question

i’m attempting to provide a facility on my site that allows a user to create a facebook event for their booking.

http://developers.facebook.com/docs/reference/api/event/

now im doing the correct process:

1) first getting authorisation from the user
https://graph.facebook.com/oauth/authorize?client_id=APP_ID&redirect_uri=http://urlimredirectingto.comtype=web_server

2) requesting for an access token with the “code” that is returned in step 1
https://graph.facebook.com/oauth/access_token

3) using the access_token to create the event …

   string facebookCreateUri = string.Format("https://graph.facebook.com/{0}/events", loggedInMember.FacebookUID);

  var formData = new HttpUrlEncodedForm() 
  {
   {"access_token", accessToken},
   {"owner", loggedInMember.FacebookUID},
   {"description", "nice event that should be on the owners wall"},
   {"name", "event on the users wall"},
   {"start_time", "1272718027"},
   {"end_time", "1272718027"},
   {"location", "rochester"},
   {"privacy","OPEN"}       
  };

  HttpContent content = HttpContent.Create(formData);
  HttpClient client = new HttpClient();

  var response = client.Post(facebookCreateUri, "application/x-www-form-urlencoded", content);

but the event is posted on my app’s wall, not the user’s wall. It shouldn’t have anything to do with the authentication/access_token elements because i use the same process to post on the user’s wall. (http://developers.facebook.com/docs/reference/api/status/) and that works just fine.

Answer 1

I came back with a solution, after a week of working at many features with Facebook SDK, it finally works!

protected void onPostEvent(object sender, EventArgs e)
    {
        if (CanvasAuthorizer.Authorize())
        {
            var fb = new FacebookWebClient(CanvasAuthorizer.FacebookWebRequest);

            dynamic parameters = new ExpandoObject();
            parameters.description = txtEvDett.Text;
            parameters.name = txtEvName.Text;
            parameters.start_time = DateTime.Now.ToString("yyyyMMdd");
            parameters.end_time = DateTime.Now.AddDays(1).ToString("yyyyMMdd");
            parameters.access_token = CanvasAuthorizer.FacebookWebRequest.AccessToken;

            dynamic eventDet = fb.Post("me/events", parameters);

            litEvent.Text = String.Format("You have created the event with ID: {0}", eventDet.id);
            lnkEvent.Visible = true;
            lnkEvent.NavigateUrl = String.Format("http://www.facebook.com/event.php?eid={0}", eventDet.id);
        }
    }

For events, you have to request the create_event permission.

You should use /me/events to post on your events.

I user the C# SDK for Facebook from Codeplex – last version available for dld (aug 2011 – v5.2.1).

Good luck!