using facebook sdk v 6 for .net i want my server to create a post to a user wall using facebook app
My code:
var client = new FacebookClient();
dynamic result = client.Get("oauth/access_token", new {
client_id = appId,
client_secret = appSecret,
grant_type = "client_credentials"
});
client.AccessToken = result.access_token;
var args = new Dictionary<string, object>();
args["message"] = "abc";
args["caption"] = "This is caption!";
args["description"] = "This is description!";
args["name"] = "This is name!";
client.Post("user/feed", args);
app configuration:
extended permissions : publish_stream , read_stream , export_stream, status_update ,share_item
user permissions : user_about_me, publish_actions
visible to all users
sandbox mode : disabled
appdomains : localhost
Website with Facebook Login - site url:localhost:8085
this 'user' im trying to publish on his wall is a TEST user in my app.
now, when i get to client.Post("user/feed", args); it throws this exception:
(OAuthException - #200) (#200) The user hasn't authorized the
application to perform this action
solution ?
you are using app's token to post on user's wall - that's not allowed. Your USER should give permissions to your app - and in return you will get USER token - and you should use it in API calls.
Related
I'm using the Facebook C# SDK to authorize my app login and post on the user's timeline. So far the login feature works and permissions are authorized, but when my code gets to the PostTaskAsync method, my app crashes with an error stating:
The program '[1020] LC Points.WindowsPhone.exe' has exited with code 0 (0x0).
I've been following this example on SO but their is no Api method available in the SDK I'm using.
Does anyone know how to debug or resolve this posting issue?
I've submitted the publish_actions for review on the Facebook developer console, but don't think that's the reason the app is crashing.
This is the ShareApp Task I'm using to call the login and posting code:
private async Task ShareApp()
{
//Facebook app id
var clientId = "573586446116744";
//Facebook permissions
var scope = "public_profile, email, publish_actions";
var redirectUri = WebAuthenticationBroker.GetCurrentApplicationCallbackUri().ToString();
var fb = new FacebookClient();
var app = new FacebookClient(fb.AccessToken);
var loginUrl = fb.GetLoginUrl(new
{
client_id = clientId,
redirect_uri = redirectUri,
response_type = "token",
scope = scope
});
Uri startUri = loginUrl;
Uri endUri = new Uri(redirectUri, UriKind.Absolute);
WebAuthenticationBroker.AuthenticateAndContinue(startUri, endUri, null, WebAuthenticationOptions.None);
//Code to post app on the user's timeline after button click..crashes when program execution comes to this code:
var postArgs = new Dictionary<string, object>();
postArgs["link"] = "http://allaboutwindowsphone.com/software/developer/Brian-Varley.php";
postArgs["name"] = "More from BV Apps..";
postArgs["message"] = "I'm using LC Points to calculate my Leaving Cert Points!";
await app.PostTaskAsync("/me/feed", postArgs);
//app.Api("/me/feed", postArgs, HttpMethod.Post); //no Api method available which is why I've used PostTaskAsync instead.
}
This is the link to the repo on my GitHub for reference
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".
I'm trying to understand if it is possible to post on the users' wall from my Facebook application.
At the moment I have:
One Facebook app with the permission to write on the users' wall
A BackEnd with Fairbooks SDK Installed
Actually I'm following this approach:
public static string GetToken()
{
var fb = new Facebook.FacebookClient();
dynamic result = fb.Get("oauth/access_token", new
{
client_id = APP_ID,
client_secret = APP_S,
grant_type = "client_credentials"
});
return result.access_token;
}
public static void Post(string Message, long UserID)
{
var token = GetToken();
var client = new FacebookClient(token);
client.Post("/" + UserID + "/photos", new { url = "url", caption = Message });
}
My final goal is to post on facebook when the user interact with my API without client-side popups. Is this possible?
This line of code calls for an application access token
dynamic result = fb.Get("oauth/access_token", new
{
client_id = APP_ID,
client_secret = APP_S,
grant_type = "client_credentials"
});
It makes no sense to use this if you haven't first retrieved a user access token in advance. Only then can you make calls on behalf of the user.
My final goal is to post on facebook when the user interact with my API without client-side popups. Is this possible?
This will never be possible by design. All 3rd party applications must invoke a client-side activity for the user in some format. It cannot be automated.
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.
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.