FacebookAchievements

using System.Collections;
using System.Collections.Generic;
using Facebook;
  
public class FacebookAchievements 
{
  
  void GiveAchievement(string achievementUrl)
  {
    var data = new Dictionary<string, string> () {{"achievement", achievementUrl}};
    FB.API ("/me/achievements",
            Facebook.HttpMethod.POST,
            AchievementCallback,
            data);
  }
  
  void AchievementCallback(FBResult result)
  {
    if (result != null) 
    {
       // Handle result
    }
  }
}