A basic example of Meta Haptics SDK Singleton to play Haptic Files

HapticsManager.cs

using Oculus.Haptics;
using UnityEngine;

public class HapticsManager : MonoBehaviour
{
    public static HapticsManager Instance;

    [SerializeField] private HapticClip clip1;
    [SerializeField] private HapticClip clip2;
    [SerializeField] private HapticClip clip3;

    private HapticClipPlayer player;

    private void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
        }
        else if (Instance != null)
        {
            Destroy(gameObject);
        }
        DontDestroyOnLoad(gameObject);
        player = new HapticClipPlayer(clip1);
    }

    public void PlayClip1()
    {
        player.clip = clip1;
        player.Play(Controller.Both);
        Debug.Log($"Haptics Played: {clip1.name}");
    }
    
    public void PlayClip2()
    {
        player.clip = clip2;
        player.Play(Controller.Right);
        Debug.Log($"Haptics Played: {clip2.name}");
    }
    
    public void PlayClip3()
    {
        player.clip = clip3;
        player.Play(Controller.Right);
        Debug.Log($"Haptics Played: {clip3.name}");
    }

    public void PlayWithClipName(string clipName,
        Controller controller = Controller.Right)
    {
        string hapticFile = $"Haptics/{clipName}";
        var hapticsClip = Resources.Load<HapticClip>(hapticFile);
        if (hapticsClip)
        {
            player.clip = hapticsClip;
            player.Play(controller);
            Debug.Log($"Haptics Played: {hapticsClip.name}");
        }
    }

    private void OnDestroy()
    {
        player.Dispose();
    }

    private void OnApplicationQuit()
    {
        Haptics.Instance.Dispose();
    }
}