Why is my API throws an error when using authentication mode

Anele Ngqandu

Somehow when using Windows mode, I get an Exception Error"Reference to undeclared entity 'nbsp'. Line 69, position 41."" weird. Then when I check the result.Content after executing I get like an html page with errors like 401 - Unauthorized: Access is denied due to invalid credentials. This is an issue that happens on the IIS Server too.

Below is my RestSharp Code from ActionResult

var client = new RestClient(Request.Url.GetLeftPart(UriPartial.Authority).ToString());
var request = new RestRequest("http://domain.co.za/api/student/getBookedSlotHistory", Method.POST);
request.AddHeader("cache-control", "no-cache");
request.AddObject(new StudentInput()
{
StudentNumber = "219193029"//UserIdentity.Username()
});
var result = client.Execute(request);
var data = JsonConvert.DeserializeObject(result.Content);

Then below is my APIController

[HttpPost]
[Route("api/student/getBookedSlotHistory")]
public async Task GetHistory(StudentInput input)
{
return await _studentRepository.GetBookingHistoryData(input);
}

3 Replies

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Anele Ngqandu7y ago
Hi Guys

Since I am using User.Identity, the windows auth needs to be enabled in short yep its enebled. But I found a solution. I added this line:
request.UseDefaultCredentials = true;
Then it worked both localy and on server. Thanks guys.
0
Bryian Tan7y ago
Did you enable Windows Authentication on the IIS and local?

https://www.c-sharpcorner.com/article/enable-windows-authentication-in-web-api-and-angular-app/

https://docs.microsoft.com/en-us/aspnet/core/security/authentication/windowsauth?view=aspnetcore-2.2&tabs=visual-studio
0
Ahmed Abdi7y ago
Hi enele!
You didn't define authentication in web.config.
please add this line in System.web
    "None"/>
0