curl Request with C# (API ProxMox)

Question

Can't match the C# code to the Unix command CURL is correct, responce is OK, but C# is {"data":null}:

curl -k -d "username=test@pve&password=User11" https://ip:8006/api2/json/access/ticket

C#

string url = "https://ip:8006/api2/json/access/ticket";
WebRequest myReq = WebRequest.Create(url);
string username = "test@pve";
string password = "User11";
string usernamePassword = username + ":" + password;
CredentialCache mycache = new CredentialCache();
mycache.Add(new Uri(url), "Basic", new NetworkCredential(username, password));
myReq.Credentials = mycache;
myReq.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(usernamePassword)));
WebResponse wr = myReq.GetResponse();
Stream receiveStream = wr.GetResponseStream();
StreamReader reader = new StreamReader(receiveStream, Encoding.UTF8);
string content = reader.ReadToEnd();
Console.WriteLine(content);
Console.ReadLine();

Response:

{"data":null}

What is the value of the following: `((HttpWebResponse)wr).StatusCode`? — Peter Csala, Feb 09 '21 at 12:10
Took from example https://stackoverflow.com/questions/9825846/curl-call-in-c-sharp — Mikhail Zhuikov, Feb 09 '21 at 12:12
Yes, I understand but could you please extract the status code from the response object. Unless this information we can't go futher. — Peter Csala, Feb 09 '21 at 12:18
please try to change the encoding from ascii to `Encoding.GetEncoding("ISO-8859-1")` [Related SO](https://stackoverflow.com/a/13956730/13268855) — Peter Csala, Feb 09 '21 at 12:31
It is also strange for me why do set the `Authorization` header and the `Credentials` as well. One of them should be enough. — Peter Csala, Feb 09 '21 at 12:34
Unfortunately, so far everything is without result, I created a proxmox event on the forum, as soon as there is a solution I will definitely publish. — Mikhail Zhuikov, Feb 10 '21 at 09:49
Have you tried to [import the curl command](https://www.shipengine.com/docs/curl/) into postman. If it works as well then you can ask postman to [generate a C# client](https://learning.postman.com/docs/sending-requests/generate-code-snippets/). It will use RestSharp instead of `WebRequest` or `HttpClient` — Peter Csala, Feb 10 '21 at 10:29

Mikhail Zhuikov · Accepted Answer · 2021-02-16T11:52:11.667

Thanks Peter Csala, helped a lot, I used RestSharp

  static void Main(string[] args)
        {
            ServicePointManager.ServerCertificateValidationCallback = (senderX, certificate, chain, sslPolicyErrors) => { return true; };
            Run();
        }

        public static void Run() {
            var client = new RestClient("https://ip:8006/api2/json/access/ticket");

            var request = new RestRequest(Method.POST);

            request.AddParameter("username", "test@pve");
            request.AddParameter("password", "password");
            
            IRestResponse response = client.Execute(request);
            var settings = new JsonSerializerSettings
            {
                NullValueHandling = NullValueHandling.Include
            };

            dynamic stuff = JsonConvert.DeserializeObject(response.Content, settings);

            var array = stuff.data;

            string ticket = array.ticket.ToString();
            string CSRFPreventionToken = array.CSRFPreventionToken.ToString();

            //Call Nodes, VM,

            var clients = new RestClient("https://ip:8006/api2/json/nodes/pve01/qemu");

            client.Timeout = 10000;
            
            var requests = new RestRequest(Method.GET);
            requests.AddCookie("PVEAuthCookie", ticket);
            IRestResponse responses = clients.Execute(requests);

            var setting = new JsonSerializerSettings
            {
                NullValueHandling = NullValueHandling.Ignore
            };

            dynamic stuffs = JsonConvert.DeserializeObject(responses.Content, setting);

            Console.WriteLine(stuffs);

            Console.ReadLine();
        }

could you please include the links what I have mentioned in the comments? Then we can delete most of the comments for your question to keep the topic clean. — Peter Csala, Feb 10 '21 at 12:00

curl Request with C# (API ProxMox)

1 Answers1