如何将.NET核心应用程序的回调传递到Core

using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

public class CallbackController : ControllerBase
{
    [HttpGet("register-callback")]
    public async Task<IActionResult> RegisterCallback()
    {
        // 模拟一个异步操作，例如数据库查询或外部API调用
        var result = await PerformAsyncOperation();

        // 定义一个回调方法
        void OnOperationCompleted(string operationResult)
        {
            Console.WriteLine($"Operation completed with result: {operationResult}");
        }

        // 注册回调
        RegisterAsyncOperationCompletion(OnOperationCompleted);

        return Ok("Callback registered successfully.");
    }

    private async Task<string> PerformAsyncOperation()
    {
        // 模拟异步操作
        await Task.Delay(1000);
        return "Operation Result";
    }

    private void RegisterAsyncOperationCompletion(Action<string> callback)
    {
        // 模拟异步操作完成后调用回调
        Task.Run(() =>
        {
            var result = PerformAsyncOperation().Result;
            callback(result);
        });
    }
}