problem updating info to data base

Hi, I'm using "Rest Client for unity" which I imported from the asset store. I have a problem which I mange to update the data but! the update is done regardless of the user info. ill explain I want to add to the user with a name he typed down 2 gems, however with the code I wrote the player get 2 gems every time he press down "update", but he starts from 0 every time I initialize the game.

the code I wrote doesn't access the info on the player in the data base.

my code:

using Proyecto26; using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI;

public class gameManagerServer : MonoBehaviour { public static string username; public static int gems; public InputField name2 ;

 user user1 = new user();


  


 public void onClickUpdate()
 {
     username = name2.text.ToString();

     RetrieveFromDataBase();

     
     user1 = new user();

     if (username != "") // nessecery, otherwise can delete all data.
     {
         RestClient.Put("https://save-the-space.firebaseio.com/" + username + ".json", user1);

     }
     else
     {
         Debug.Log("cannot update user with emepty username");
     }

 }


 private void RetrieveFromDataBase()
 {
     RestClient.Get<user>("https://save-the-space.firebaseio.com/" + username + ".json").Then(response =>
     {
         user1 = response;
         Debug.Log(user1);
         //  user1.gems = response.gems;
         //  user1.username = response.username;
         upadteScore();

     });


 }


 private void upadteScore()
 {
    // gems = user1.gems;
     gems++;
     gems++;
     Debug.Log(gems);


 }

}