//Update a friend
public static void PutFriend(string friendName, Friend friend, PostFriendCallback callback)
{
RestClient.Put($"{databaseURL}friend/" + friendName + ".json", friend).Then(response => { callback(); });
}
//Create a Friend
public static void PostFriend(Friend friend, string friendName, PostFriendCallback callback)
{
RestClient.Put <Friend>($"{databaseURL}friend/{friendName}.json", friend).Then(response => { callback(); });
}
