This tutorial demonstrates how to display facebook user details on your website.

This is part 2 of Facebook API integration in ASP.NET series. In order to complete this tutorial, you need to have facebook login button integrated in your app. Please check out Part 1 - Integrating Facebook Login button in ASP.NET MVC 4 application for insturctions on how to do so and working solution that you need for this tutorial.

What we are going to in this tutorial, is using access token we obtained from fb (upon login), we'll contact API server and request user details. Facebook Graph API is using Json to exchange information. On API request, we'll get Json string back which in order to use in our app, needs to be converted to C# object.


Firstly, let's create 3 new models. These will represent Json structure contained within string that we're getting back from facebook. Open up solution we created earlier and add 3 C# classes to Models folder.


namespace FacebookLoginButton.Models
    public class FacebookLocation
        public string id { get; set; }
        public string name { get; set; }


namespace FacebookLoginButton.Models
    public class Picture
        public PicureData data { get; set; }

    public class PicureData
        public string url { get; set; }
        public bool is_silhouette { get; set; }


namespace FacebookLoginButton.Models
    public class FacebookUserModel
        public string id { get; set; }
        public string email { get; set; }
        public string first_name { get; set; }
        public string last_name { get; set; }
        public string gender { get; set; }
        public string locale { get; set; }
        public string link { get; set; }
        public string username { get; set; }
        public int timezone { get; set; }
        public FacebookLocation location { get; set; }
        public Picture picture { get; set; }

Rebuild your solution.

Facebook API connector and Json -> C# converter

Now, we need to install 2 dlls. Facebook.dll will make contacting Facebok API server easy peasy and Newtonsoft.Json.dll will helps us with Json string -> C# object conversion. Below, in article attachments section, there is Required dlls download available. Unzip it and drop folder content (4 files in total) into /bin folder inside your app. Once you've done that, in Visual Studio, right click References folder, and add reference to both .dll files that you've just dropped into /bin.

User data controller and view

Since we've now got all models in place and all required software installed, we can add some logic to AccountController.cs that we created in previous tutorial, that will contact facebook api and return data to the view for a display.

Open up Controller/AccountController.cs and add following method:

        public ActionResult UserDetails()
            var client = new FacebookClient(Session["accessToken"].ToString());
            dynamic fbresult = client.Get("me?fields=id,email,first_name,last_name,gender,locale,link,username,timezone,location,picture");
            FacebookUserModel facebookUser = Newtonsoft.Json.JsonConvert.DeserializeObject<FacebookUserModel>(fbresult.ToString());

            return View(facebookUser);

Don't forget to add using statement in the top of the file as well - using Facebook;

View() should be highlighted in red indicating that there is no view file (.cshtml) associated with this method. Right click on View() and select add view. Now, be carefull, since we're passing an object to it, it needs to be a strongly-typed view. This will make all object properties accessible via @Model variable. Before clicking OK, make sure all properties in the window are set as on following screen:

Facebookpart 2screen1

Once the view has been added, you should find a new .cshtml view file under Views/Account/UserDetails.cshtml. Open that file and paste in following code:

@model FacebookLoginButton.Models.FacebookUserModel

    ViewBag.Title = "Part 2 - Facebook Login Button";
    Layout = "~/Views/Shared/_Layout.cshtml";

<h2>Part 2 - Facebook User Details</h2>

    <tr><td>Picture</td><td><img src='' /></td></tr>
    <tr><td>Facebook Id</td><td></td></tr>
    <tr><td>First Name</td><td>@Model.first_name</td></tr>
    <tr><td>Last Name</td><td>@Model.last_name</td></tr>
    <tr><td>Location</td><td>Id -<br />Name -</td></tr>
    <tr><td>Facebook Link</td><td></td></tr>

Finally, rebuild your solution, make sure you dont have any errors on build, press F5 (unless you have it configured as a host), login to facebook using facebook button and go to /Account/UserDetails url. If you've done everything right, you should see following screen:

Facebookpart 2screen2

Good luck!

Btw. You may also consider extending session timeout to keep facebook access token in the memory for a little bit longer. Also, it'd be worth to add try/catch login to UserDetails() method in case accessToken variable in nor present in Session object.

Feel free to check out my other facebook tutorials! Aaaand leave a comment if you found it helpful. I love getting comments :)

Tagged: .NET 4  ASP.NET MVC  C#  Facebook Graph Api  Facebook User Details  JSON  MVC 4