src/Infrastructure/TelegramSaaS.API/Controllers/TelegramWebhookController.cs

using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Telegram.Bot.Types;
using TelegramSaaS.Application.Common.Interfaces.Services;

namespace TelegramSaaS.API.Controllers;

[ApiController]
[Route("api/v1/telegram")]
public class TelegramWebhookController : ControllerBase
{
    private readonly ITelegramUpdateService _updateService;

    public TelegramWebhookController(ITelegramUpdateService updateService)
    {
        _updateService = updateService;
    }

    [HttpPost("webhook")]
    public async Task<IActionResult> ReceiveWebhook([FromBody] Update update)
    {
        if (update == null) return BadRequest();

        await _updateService.HandleUpdateAsync(update);

        return Ok();
    }
}