C# SOAP Request with file stream and basic auth

Here is the code I tried in c#, however API is returning 500

var handler = new HttpClientHandler();
            HttpContent stringContent = new StringContent("test.pdf", Encoding.UTF8);
            var byteArrayContent = new ByteArrayContent(fileBytes);
            HttpContent bytesContent = new ByteArrayContent(fileBytes);
            handler.PreAuthenticate = true;
            using (var client = new HttpClient(handler))
            {
                ByteArrayContent byteContent = new ByteArrayContent(fileBytes);
                var authString = Convert.ToBase64String(Encoding.UTF8.GetBytes("sirius-vscan-qas-0:m,'^ZT^=n/D^i1AgCVoh"));
                var formData = new MultipartFormDataContent();
                client.DefaultRequestHeaders.Authorization =  new System.Net.Http.Headers.AuthenticationHeaderValue ("Basic", authString);
                //formData.Add(stringContent, "fileName", "TestVirus");
                formData.Add(stringContent, "contentID", "test.pdf");
                formData.Add(byteArrayContent,"application/pdf");
                var response = await client.PostAsync("https://azure-vscan.application.qas.supplyon.com/com.supplyon.vs/VirusScanService", formData);
                if (!response.IsSuccessStatusCode)
                {
                    return null;
                }
            }
 

Hi Uttam,

To send a SOAP request with a file stream and basic authentication, you can use a SOAP client library in your programming language of choice. let me know if you are looking some code example for that. and in which language , i will try to share.