Facebook integration with ASP.NET 4.0 Website(non MVC) - facebooksdk

Question

I am trying to integrate my asp.net 4.0(non MVC) website with facebook.

I want to retrive the authenticated user info.

The samples listed in facebooksdk is based on MVC. i tried to implement it in my website, but getting errors. i am struck.

If anyone implemented the facebook connect logic and retrieved the user information using facebook-c#-sdk, please help me how to do this.

I tried the same using facebooktoolkit, and i am able to retrive the user info. but the toolkit is having issues with .net 4.0.

Greatly appreciated your help.

Answer 1

Here is some example code on how to protect a page called ProtectedPage.aspx and have a login page called LogOn.aspx:

Login.aspx:

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <h2>
        Log In
    </h2>
    <p>
        <fb:login-button></fb:login-button>
    </p>
    <div id="fb-root">
    </div>
    <script src="http://connect.facebook.net/en_US/all.js"></script>
    <script>
        FB.init({ appId: 'your app id', status: true, cookie: true, xfbml: true });
        FB.Event.subscribe('auth.sessionChange', function (response) {
            if (response.session) {
                // A user has logged in, and a new cookie has been saved
                window.location.reload();
            } else {
                // The user has logged out, and the cookie has been cleared
            }
        });
    </script>
</asp:Content>

Login.aspx.cs

public partial class Login : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            FacebookApp app = new FacebookApp();
            Authorizer authorizer = new Authorizer(app);
            if (authorizer.IsAuthorized())
            {
                Response.Redirect(HttpUtility.UrlDecode(Request.QueryString["returnUrl"] ?? "/"));
            }
        }
    }

ProtectedPage.aspx.cs

public partial class ProtectedPage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        FacebookApp app = new FacebookApp();
        Authorizer authorizer = new Authorizer(app);
        if (!authorizer.IsAuthorized())
        {
            Response.Redirect("~/Account/Login.aspx?returnUrl=" + HttpUtility.UrlEncode(Request.Url.PathAndQuery));
        }
    }
}

There are more samples and istructions on our Codeplex wiki.

Answer 2

Just Follow these simple steps:

• Use the official sdk: github.com/facebook/csharp-sdk .
• Implement the authentication process of your own.
• Read facebookk api documentation on web application authentication for better understanding the authentication process: developers.facebook.com/docs/authentication/#authenticating-users-in-a-web-application
• I have made an custom facebook classs for encapsulate this authentication process as much as possible. I have shared it on my blog on facebook api authentication using c#. You can use it as reference also.
• After getting the access token, all are straight forward. Just set the access token and call 'get' method for provate data.
• If you are still having problem,please let us know details.

Answer 3

Here is a good example of Facebook Auth 2.0 using facebook sdk from codeplex

Facebook Auth 2.0 using facebook sdk