HttpresponseMessage risposta = await client.PostAsync(new Uri(uri), queryString); ends execution prematurely

Question

I'm trying to connect to CheckPoint APIs with some c# code, i type in all the data(username and password in json format and compile the Uri) and when i do the call it just ends the execution without exceptions

Here's the code

 public async Task<HttpResponseMessage> CPAPICall()
    {
        HttpClient client = new HttpClient();
        Console.Write("username: ");
        String uname = Console.ReadLine();
        Console.Write("password: ");
        String pwd = Console.ReadLine();
        String json = "{\n" +
                      "\"user\":" + "\"" + uname + "\",\n" +
                      "\"password\"" + "\"" + pwd + "\",\n" +
                      "}";
        StringContent queryString = new StringContent(json, Encoding.UTF8, "application/json");
        Console.WriteLine("Inserisci l'IP e la porta della management CP a cui vuoi connetterti (Esempio 192.168.1.1:443, se non si inserisce la porta quella di default è 443):");
        String IpAddr = Console.ReadLine();
        String[] IpAddrEPort = new String[2];
        HttpResponseMessage risposta = new HttpResponseMessage();
        if (IpAddr.Contains(":"))
        {
            IpAddrEPort = IpAddr.Split(':');
        }
        else
        {
            IpAddrEPort[0] = IpAddr;
            IpAddrEPort[1] = "443";
        }

        String uri = "https://" + IpAddr + "/web_api/login";
        try
        {
            risposta = await client.PostAsync(new Uri(uri), queryString);
        }
        catch (HttpListenerException e)
        {
            Console.WriteLine(e);
            Console.ReadKey();
        }
        String risp = risposta.StatusCode.ToString();
        Console.WriteLine(risp);
        Console.ReadKey();
        return risposta;
    }

json string management is pretty bad, but while i'm testing things it helps me.

code ends here risposta = await client.PostAsync(new Uri(uri), queryString);

Any suggestion on the cause?

When you say 'ends here' does the code throw any error / timeout? If not, I'm wondering if the API is doing something that awaits user feedback before returning. Such as a Google OAuth signing page or something. — clamchoda, Jan 18 '21 at 16:59
It doesnt throw any error, CheckPoint APIs once the login process is acknowledged should return and acknowledgment with some data and the lines of code below should print this. — Andrea Retox Bonetti, Jan 18 '21 at 17:04

score 1 · Accepted Answer · answered Jan 18 '21 at 17:07

1

I would suggest using Newtonsoft.Json to serialize your strings data into a JSON correctly, it's 100% better. About the premature end, I think the method that is calling the 'CPAPICall' is not doing it in an asynchronous way, so check if this method was created asynchronously and have the await operator before the 'CPAPICall' on the same line.

answered Jan 18 '21 at 17:07

Lucas Lucena

60
1
11

i will give a try on the json advice, thanks. I called ansynchronously the CPAPICall method after i found out that not doing that could case this issue, but with no luck(i'm still calling it async at the moment) – Andrea Retox Bonetti Jan 18 '21 at 18:04
but did you include 'await' before the method call? – Lucas Lucena Jan 18 '21 at 18:36
Yes i did it this way res = await CPAPICall(); and the method that's calling this is also called with await – Andrea Retox Bonetti Jan 18 '21 at 19:04
1

Ok, i rebuilt the chain of async methods and await calls until the Main(). and now finally it gives me a connection error. thanks! – Andrea Retox Bonetti Jan 19 '21 at 10:01

HttpresponseMessage risposta = await client.PostAsync(new Uri(uri), queryString); ends execution prematurely

1 Answers1