I need to have a service that get all templates from WBP
To do this, I used postman and the templates has been retieved
So I copied the code, from postam, and I put it into a console application
But when I execute the application, nothing happen
There is something wrong in the code?

private async Task estraiHttp()

{

    var client = new HttpClient();

    var request = new HttpRequestMessage(HttpMethod.Get, "https://graph.facebook.com/****/message_templates");

    request.Headers.Add("Authorization", "****");

    request.Headers.Add("Cookie", "ps_l=1; ps_n=1");

    var response = await client.SendAsync(request);

    response.EnsureSuccessStatusCode();

    Console.WriteLine(await response.Content.ReadAsStringAsync());

}

thankyou

I tried to retrieve the templates but it does not work