stripe payment gateway integration in asp.net core

private readonly string WebhookSecret = "whsec_OurSigningSecret";

//Previous actions

[HttpPost]
public IActionResult ChargeChange()
{
    var json = new StreamReader(HttpContext.Request.Body).ReadToEnd();

    try
    {
        var stripeEvent = EventUtility.ConstructEvent(json,
            Request.Headers["Stripe-Signature"], WebhookSecret, throwOnApiVersionMismatch: true);
        Charge charge = (Charge)stripeEvent.Data.Object;
        switch (charge.Status)
        {
            case "succeeded":
                //This is an example of what to do after a charge is successful
                charge.Metadata.TryGetValue("Product", out string Product);
                charge.Metadata.TryGetValue("Quantity", out string Quantity);
                Database.ReduceStock(Product, Quantity);
                break;
            case "failed":
                //Code to execute on a failed charge
                break;
        }
    }
    catch (Exception e)
    {
        e.Ship(HttpContext);
        return BadRequest();
    }
    return Ok();
}