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WebAuthenticationBroker Facebook Given URL is not allowed

I'm developing a new update for my existing Windows 8.1 app (written in C#). On this update, I would like the users to connect to Facebook. I found a lot of tutorials to make this work but I still don't have a solution.
When the WebAuthenticationBroken is called I have the Facebook login page (with Facebook logo and email and password fields) but on the top I have this:
Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings. must match the Website URL or Canvas URL, or the domain must be a of one of the App's domains.
When I fill my info and click on Login I got an error like this from the WebAuthenticatonBroken UI: (I'm not using my Windows in English, so I don't know how it is exactly written)
We couldn't connect to the service right now. Check your internet connection or try again later.
My Facebook app is live, the SID is defined on the Windows Store ID field on basic settings.
Here I have my C# code used to call the WebAuthenticationBroker on my Windows 8.1 app:
public Uri _callbackUri = WebAuthenticationBroker.GetCurrentApplicationCallbackUri();
public string FacebookAppId = "15911339xxxxxxxx";
public string FacebookPermissions = "public_profile,email,user_friends";
FacebookClient _fb = new FacebookClient();
var loginUrl = _fb.GetLoginUrl(new
{
client_id = FacebookAppId,
redirect_uri = _callbackUri.AbsoluteUri,
scope = FacebookPermissions,
display = "popup",
response_type = "token"
});
WebAuthenticationResult WebAuthenticationResult = await WebAuthenticationBroker.AuthenticateAsync(
WebAuthenticationOptions.None,
loginUrl);
if (WebAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
{
var callbackUri = new Uri(WebAuthenticationResult.ResponseData.ToString());
var facebookOAuthResult = _fb.ParseOAuthCallbackUrl(callbackUri);
FacebookClient fbclient = new FacebookClient(facebookOAuthResult.AccessToken);
dynamic result = await fbclient.GetTaskAsync("me");
string id = result.id;
string email = result.email;
string FBName = result.name;
ApplicationData.Current.RoamingSettings.Values["UserID"] = id;
var accessToken = facebookOAuthResult.AccessToken;
}
I've already tried with no Valid OAuth redirect uri and with the "https://www.facebook.com" as well, but it's still not working.
I've also tried setting the "Embedded browser OAuth Login" and the "Native or desktop app?" on.
I'm using the most recent Facebook SDK for Windows Store.
I hope someone can help me fix this error.
PS: sorry for my bad English...
Thanks,
Rafael Pedro da Silva

Ok, I got it :) It's working now.
I just had to set the redrect url ( "FacebookClient().GetLoginUrl()" and on the callbackUri of the WebAuthenticationBroker ) and on Facebook settings to "https://www.facebook.com/connect/login_success.html".

Contents Posted on Facebook Page not visible?

I am trying to post on my Facebook page using c# and Facebook sdk. I am able to post the contents on my Facebook page but it is not properly visible to others. Even the admin of the page can view only the heading of the post but can not see the picture or the content of that post. But the admin of the page can see the contents of the post by clicking on ">" this sign beside post to page. Please guide me why this is happening and how can I resolve this.
protected void Page_Load(object sender, EventArgs e)
{
CheckAuthorization();
}
private void CheckAuthorization()
{
string app_id = "My App ID";
string app_secret = "My App Secret";
string scope = "publish_stream, publish_actions";
if (Request["code"] == null)
{
Response.Redirect(string.Format("https://graph.facebook.com/oauth/authorize?client_id={0}&redirect_uri={1}&scope={2}", app_id, Request.Url.AbsoluteUri, scope));
}
else
{
Dictionary<string, string> tokens = new Dictionary<string, string>();
string url = string.Format("https://graph.facebook.com/oauth/access_token?client_id={0}&redirect_uri={1}&scope={2}&code={3}&client_secret={4}",app_id,Request.Url.AbsoluteUri,scope,Request["code"].ToString(),app_secret);
HttpWebRequest request = System.Net.WebRequest.Create(url) as HttpWebRequest;
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
StreamReader reader = new StreamReader(response.GetResponseStream());
string vals = reader.ReadToEnd();
foreach (string token in vals.Split('&'))
{
tokens.Add(token.Substring(0, token.IndexOf("=")), token.Substring(token.IndexOf("=") + 1, token.Length - token.IndexOf("=") - 1));
}
}
string access_token = tokens["access_token"];
var client = new FacebookClient(access_token);
dynamic parameters = new ExpandoObject();
parameters.message = "Hello This Is My First Post To Facebook";
parameters.link = "http://www.google.com";
parameters.picture = "http://www.mywebsite.com/picture/welcome.jpg";
parameters.name = "Hello Users We welcome you all";
parameters.caption = "Posted By Ashish";
client.Post("/My Facebook Page ID/feed", parameters);
}
}
Please guide me where I am doing wrong since I am trying this for the first time after following certain posts on several websites.

You are using the user access token to post a feed to the page. So, the feeds are posted on behalf the user (not the page), which are visible as summary on the timeline.
If you post the feed on behalf of page admin itself (so that the post is visible normally on the timeline), you need to use the page access token with publish_actions permissions.
And to get the page access token you need to query: /<page-id>?fields=access_token using the normal user token with manage_pages permission.

I just want to add that sometimes your app is in MODE : developer so everything you do is visible only to the developers, it is actually the problem i had, So you need to go to your application Dashboard and look for something like "Review" [i hate giving exact paths because Facebook changes everything every once in a while], and look for something like : Your app is in development and unavailable to the public, put it to public

Post message from Website to Facebook wall

I have a website made with ASP.NET webform .NET 4.5 C#. This site contains a forum(homemade by me), parts of this forum needs to be posted to the specific facebook wall(made for this webpage). What I need :
Post just created thread(message) from specific part of the forum to the corsponding facebook wall.
Optional : Sync the forum thread on webpage with message/comments on the specific facebook page
I have looked at these guides :
http://www.codeproject.com/Articles/569920/Publish-a-post-on-Facebook-wall-using-Graph-API
http://www.c-sharpcorner.com/UploadFile/raj1979/post-on-facebook-users-wall-using-Asp-Net-C-Sharp/
But im not sure that this is really the solution for me? I have tried to follow the guide but it does not look the same.
Edit :
dynamic result;
//https://developers.facebook.com/tools/explorer/
//https://developers.facebook.com/tools/access_token/
FacebookClient client = new FacebookClient(ConfigurationManager.AppSettings["FacebookAppToken"]);
//result = client.Get("debug_token", new
//{
// input_token = ConfigurationManager.AppSettings["FacebookAppToken"],
// access_token = ConfigurationManager.AppSettings["FacebookAppToken"]
//});
//result = client.Get("oauth/access_token", new
// {
// client_id = ConfigurationManager.AppSettings["FacebookAppId"],
// client_secret = ConfigurationManager.AppSettings["FacebookAppSecret"],
// grant_type = "client_credentials",
// //redirect_uri = "http://www.MyDomain.net/",
// //code = ""
// });
result = client.Get("oauth/access_token", new
{
client_id = ConfigurationManager.AppSettings["FacebookAppId"],
client_secret = ConfigurationManager.AppSettings["FacebookAppSecret"],
grant_type = "client_credentials"
});
client.AccessToken = result.access_token;
result = client.Post("[IdOfFacebookPage]/feed", new { message = "Test Message from app" });
//result.id;
result = client.Get("[IdOfFacebookPage]");
return false;

Approach to post to a facebook wall:
You need to register in facebook developer tools.
Create a app (fill a form).
Download FGT 5.0.480 (Facebook graph toolkit)
Reference FGT dlls in your web application.
FGT has methods to post to facebook wall but needs appId.
Use the app id of your app created in step 2.
To post to an user's wall through facebook, it is only possible through an app.
Try this asp .net app, which will allow you to post in your wall:
https://apps.facebook.com/aspdotnetsample/?fb_source=search&ref=br_tf
This will allow you to envision what you need.
Your app gets an appId with which you need to generate auth token.
Limitation: The user's wall where you want to post should have added the app created at step 2, this is compulsory and there is no work around.
When the user accesses the app for the first time, it automatically asks for permission to post to wall--> the user needs to accept it.
Hope this gives you an idea on how to go about doing this.
You can then post into the user's wall.
For Banshee's below request using Facebook SDK for .NET:
userId - facebook user id, wall to post the message
This user should have added the app created by you in step 1 else it will say unauthorized access.
dynamic messagePost = new ExpandoObject();
messagePost.picture = "http://www.stackoverflow.com/test.png";
messagePost.link = "http://www.stackoverflow.com";
messagePost.name = "This is a test name";
messagePost.caption = "CAPTION 1";
messagePost.description = "Test desc";
messagePost.message = "message"
var fb = new FacebookClient();
dynamic result = fb.Get("oauth/access_token", new {
client_id = "app_id",
client_secret = "app_secret",
grant_type = "client_credentials"
});
fb.AccessToken = result.access_token;
try
{
var postId = fb.Post(userId + "/feed", messagePost);
}
catch (FacebookOAuthException ex)
{
//handle oauth exception
}
catch (FacebookApiException ex)
{
//handle facebook exception
}
You will need an extended token to publish to a wall.. Steps to get extended token is explained well by Banshee..
Edit: How to get extended token by Banshee:
Please follow this post

By creating a extended page token and use it to make the post everything works just fine. See this : How to get Page Access Token by code?
Im surprised that this simple task was so hard to get running and that there was vary little help to get.

Trying to post message to facebook using windows client app

I am using visual studio 2013 .NET 4.5 and C# with a windows forms client application, I am trying to post a message to my own Facebook managed page. I have created a new Facebook application, but not yet published it, I am unsure of the settings, but I have the app_id, app_secret and from debugging I have the access_token.
I used a piece of code to open a browser window to login with permissions and this was successful/
I am getting the following error:
OAuthException - #200) (#200) The user hasn't authorized the application to perform this action
The code I am using is below:
var fb = new FacebookClient("AUTH_CODE")
dynamic parameters = new ExpandoObject();
parameters.message = "hello tweet tweet";
dynamic result = fb.Post("SITE_ID/feed", parameters);
var id = result.id;
for logging in I am using:
var client = new FacebookClient();
client.AppSecret = app_secret;
client.AppId = app_id;
client.AccessToken = "AUTH_CODE";
var fbLoginUri = client.GetLoginUrl(new
{
client_id = app_id,
redirect_uri =
"https://www.facebook.com/connect/login_success.html",
response_type = "code",
scope = "manage_pages,offline_access,publish_stream,publish_actions"
});
System.Diagnostics.Process.Start(url);
I am already logged in and the message on the browser shows SUCCESS...
The DLL that I have referenced is the latest v6.0 Facebook C# SDK
Do I need to setup the Facebook app so that it has permissions to post onto my managed wall and if so how do I do it.
I hope someone out there can help, I have been looking at this for days and I need a little help.
PS:
I have also tried the following code:
var fb = new FacebookClient();
dynamic result = fb.Get("oauth/access_token", new
{
client_id = app_id,
client_secret = app_secret,
grant_type = "client_credentials",
scope = "manage_pages,offline_access,publish_stream"
});
var app_token = result.access_token;
var client = new FacebookClient(app_token);
dynamic parameters = new ExpandoObject();
parameters.message = "Check out this funny article";
parameters.link = "http://www.natiska.com/article.html";
parameters.picture = "http://www.natiska.com/dav.png";
parameters.name = "Article Title";
parameters.caption = "Caption for the link";
//446533181408238 is my fan page
client.Post("/446533181408238/feed", parameters);
Paul.

It seems that the request code from your access token request is missing which probably causes this error, see this question for more details on this.

Can't send Notifications using C# Facebook SDK

I am trying to send a notification (not app requests) to registered users, server-side using the C# Facebook SDK. I actually get a success message, but no notification is sent. Our app is not in sandbox and has canvas enabled. The code below show attempts to send both notifications and app requests--the notifications do nothing, but the app request works:
var fb = new FacebookClient();
dynamic result = fb.Get("oauth/access_token", new
{
client_id = "MY_APP_KEY",
client_secret = "MY_SECRET",
grant_type = "client_credentials"
});
fb.AccessToken = result.access_token;
dynamic nparams = new ExpandoObject();
nparams.template = "Hello from my app!";
nparams.href = "Home";
dynamic requestParams = new ExpandoObject();
requestParams.message = "Hi there";
requestParams.title = "Please use this awesome app";
foreach (string facebookID in facebookIDs)
{
// This returns success:true, but doesn't actually do anything
var postResult = fb.Post(facebookID + "/notifications", nparams);
// This works and shows a request in the app center
var postResult2 = fb.Post(facebookID + "/apprequests", requestParams);
}
The fact that apprequests send here tells me the access token is ok, so why don't notifications work? We really need to do this server-side--has anyone been able to do that?

Got a response from facebook on this . . . basically, that this feature is in beta and it may just not work, despite giving Success responses

Good snippet Anthony. Appears to be working consistently now. +1 for your attempt.
PS: In case anyone stumbles upon this code, "facebookID" is a numeric Id and can be derived using the following link http://findmyfacebookid.com/