httclient sendasync issue in .net core

Question

    var client = new HttpClient();
        HttpRequestMessage httpRequestMessage = new HttpRequestMessage(HttpMethod.Get, "https://www.nseindia.com/option-chain");
        httpRequestMessage.Headers.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)");
        httpRequestMessage.Headers.Add("Accept", "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5");
        httpRequestMessage.Headers.Add("Accept-Language", "en-us,en;q=0.5");
        httpRequestMessage.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
        var response = await client.SendAsync(httpRequestMessage);

The above code is working in the .net console application but not working in the .net core console application. In .net core console application getting following error.

IOException: Unable to read data from the transport connection: The I/O operation has been aborted because of either a thread exit or an application request,

SocketException: The I/O operation has been aborted because of either a thread exit or an application request.

Answer 1

The error appears to indicate your main() which called the httpcliebt code without waiting for the async operation to complete and the program exited before the call completed.

Answer 2

These error can be due to port exhaustion due to not using HttpClient as recommended in the official docs.