topic API Authentification in Services Discussions

API Authentification

gerry.sheehan1 — Wed, 13 Jul 2022 10:41:14 GMT

I'm attempting to set up a connection to Stealthwatch via an SSIS c# script. The following fails on the last line with message "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel." The curl command in the documentation has a "-K" option which might be the issue, but I don't know how that needs to be reflected in my json request.

string wUrl = "https://stealthwatch.nas.hscn.nhs.uk/token/v2/authenticate";

var httpRequest = (HttpWebRequest)WebRequest.Create(wUrl);

httpRequest.Method = "POST";
httpRequest.ContentType = "application/json";
var data = "{\"username\":\"gsheehan\",\"password\":\"****\"}";

using (var streamWriter = new StreamWriter(httpRequest.GetRequestStream()))
{
streamWriter.Write(data);
}

var httpResponse = (HttpWebResponse)httpRequest.GetResponse();

Re: API Authentification

Marcel Zehnder — Wed, 13 Jul 2022 14:18:20 GMT

You need to bypass the certificate check (or ignore any ssl related errors). not too sure about C# but according to google this should work:

string wUrl = "https://stealthwatch.nas.hscn.nhs.uk/token/v2/authenticate"; ServicePointManager.ServerCertificateValidationCallback = delegate { return true; }; var httpRequest = (HttpWebRequest)WebRequest.Create(wUrl); httpRequest.Method = "POST"; httpRequest.ContentType = "application/json"; var data = "{\"username\":\"gsheehan\",\"password\":\"****\"}"; using (var streamWriter = new StreamWriter(httpRequest.GetRequestStream())) { streamWriter.Write(data); } var httpResponse = (HttpWebResponse)httpRequest.GetResponse();

HTH
Marcel

Re: API Authentification

gerry.sheehan1 — Fri, 22 Jul 2022 11:35:54 GMT

Thanks Marcel. It made a difference, in that I receive a different error now : "The remote server returned an error: (415) Unsupported Media Type."

I added extra code:

httpRequest.MediaType = "application/json";
httpRequest.Accept = "application/json";

but it hasn't made any difference.

Re: API Authentification

gerry.sheehan1 — Fri, 22 Jul 2022 15:42:43 GMT

Looks like I had an issue with how I passed in the credentials. The following worked:

// Build Username/password in to POST data
var postData = "username=" + Uri.EscapeDataString(username);
postData += "&password=" + Uri.EscapeDataString(password);
var data = Encoding.ASCII.GetBytes(postData);

httpRequest.Method = "POST";
httpRequest.ContentType = "application/x-www-form-urlencoded";
httpRequest.ContentLength = data.Length;
using (var streamWriter = httpRequest.GetRequestStream())
{
streamWriter.Write(data, 0, data.Length);
}

Your help was much appreciated. I'll close the case