Get free coins Video ads

Hey guys,

What I want to do its to give to the usser some free coins to watch a video.

I bought a really cool In App Purchase sistem. Unity Asset Store - The Best Assets for Game Making

I modify a menu like this:

And i know to create and script and ad it to onclick button. As u good know, unity provides you this code as a reward one:

using UnityEngine;
using UnityEngine.Advertisements;

public class UnityAdsExample : MonoBehaviour
{
  public void ShowRewardedAd()
  {
    if (Advertisement.IsReady("rewardedVideoZone"))
    {
      var options = new ShowOptions { resultCallback = HandleShowResult };
      Advertisement.Show("rewardedVideoZone", options);
    }
  }

  private void HandleShowResult(ShowResult result)
  {
    switch (result)
    {
      case ShowResult.Finished:
        Debug.Log("The ad was successfully shown.");
        //
        // YOUR CODE TO REWARD THE GAMER
        // Give coins etc.
        break;
      case ShowResult.Skipped:
        Debug.Log("The ad was skipped before reaching the end.");
        break;
      case ShowResult.Failed:
        Debug.LogError("The ad failed to be shown.");
        break;
    }
  }
}

Any idea what should i code in “// YOUR CODE TO REWARD THE GAMER
// Give coins etc.”

thanks guys

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