Facebook Unity SDK Tutorial – Share, Invite, Get Friends (Code)

Learn how to integrate Facebook SDK into your Unity game!

In this tutorial you will learn how to share, send game requests and invites and how to get friends who are also playing your game. Most importantly though, you will learn how to set everything up so that your game can be up and running in no time!

This post contains all the code that’s been written in this YouTube video.

FacebookScript.cs

using System.Collections.Generic;
using UnityEngine;
using Facebook.Unity;
using UnityEngine.UI;

public class FacebookScript : MonoBehaviour {

    public Text FriendsText;

    private void Awake()
    {
        if (!FB.IsInitialized)
        {
            FB.Init(() =>
            {
                if (FB.IsInitialized)
                    FB.ActivateApp();
                else
                    Debug.LogError("Couldn't initialize");
            },
            isGameShown =>
            {
                if (!isGameShown)
                    Time.timeScale = 0;
                else
                    Time.timeScale = 1;
            });
        }
        else
            FB.ActivateApp();
    }

    #region Login / Logout
    public void FacebookLogin()
    {
        var permissions = new List<string>() { "public_profile", "email", "user_friends" };
        FB.LogInWithReadPermissions(permissions);
    }

    public void FacebookLogout()
    {
        FB.LogOut();
    }
    #endregion

    public void FacebookShare()
    {
        FB.ShareLink(new System.Uri("https://resocoder.com"), "Check it out!",
            "Good programming tutorials lol!",
            new System.Uri("https://resocoder.com/wp-content/uploads/2017/01/logoRound512.png"));
    }

    #region Inviting
    public void FacebookGameRequest()
    {
        FB.AppRequest("Hey! Come and play this awesome game!", title: "Reso Coder Tutorial");
    }

    public void FacebookInvite()
    {
        FB.Mobile.AppInvite(new System.Uri("https://play.google.com/store/apps/details?id=com.tappybyte.byteaway"));
    }
    #endregion

    public void GetFriendsPlayingThisGame()
    {
        string query = "/me/friends";
        FB.API(query, HttpMethod.GET, result =>
        {
            var dictionary = (Dictionary<string, object>)Facebook.MiniJSON.Json.Deserialize(result.RawResult);
            var friendsList = (List<object>)dictionary["data"];
            FriendsText.text = string.Empty;
            foreach (var dict in friendsList)
                FriendsText.text += ((Dictionary<string, object>)dict)["name"];
        });
    }
}