oidc authorization flow in csharp

main.cs
using IdentityModel.Client;
using System;
using System.Net.Http;

var discoveryResponse = await HttpClient.GetDiscoveryDocumentAsync("{issuer_url}");

if (discoveryResponse.IsError)
{
    Console.WriteLine(discoveryResponse.Error);
    return;
}

var tokenClient = new TokenClient(discoveryResponse.TokenEndpoint, "{client_id}", "{client_secret}");
var tokenResponse = await tokenClient.RequestClientCredentialsAsync("{api_scope}");

if (tokenResponse.IsError)
{
    Console.WriteLine(tokenResponse.Error);
    return;
}

var httpClient = new HttpClient();
httpClient.SetBearerToken(tokenResponse.AccessToken);

var apiResponse = await httpClient.GetAsync("{api_url}");

if (!apiResponse.IsSuccessStatusCode)
{
    Console.WriteLine(apiResponse.StatusCode);
    return;
}

var content = await apiResponse.Content.ReadAsStringAsync();
Console.WriteLine(content);
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