httpclient unauthorized error 401

[Alberto]

My application is redirected from https:\\application.domain.com to http:\\servername.domain.net

I'm using windows authentication with [authorize] control in webAPI.

Whether I call my webAPI to populate a datasource it works:

    .DataSource(source => source
        .Custom()
        .Transport(transport =>
        {
            transport.Read(new
            {
                url = $"{WebApiUrl}",
                xhrFields = new { withCredentials = true },
                DataType = "json",
                Data = "forgeryToken"
            });
        })

Instead if I use the HTTPCLIENT class it seems that the request loses the credentials and it returns an unauthorize error 401

services.AddHttpClient<Class>()
                .ConfigurePrimaryHttpMessageHandler(handler =>
                   new HttpClientHandler()
                   {
                       AutomaticDecompression = System.Net.DecompressionMethods.GZip,
                       UseDefaultCredentials = true,
                   });

Whether I don't use the redirection and I call directly http:\\servername.domain.net it works.

How can I use HTTPCLIENT class to mantain the credential?

I know it's not related to telerik, but I don't understand why with telerik it works and I hope that someone can help me.

Thank you

[Stoyan]

Hi Alberto,

The difference in these configurations is that AddHttpClient method is a service collection extension and is applied to the server-side.

The DataSource's properties are ultimately serialized to the client-side and there the Web API's withCredentials method is used. Then Read requests sent to the specified Web API Url include credentials.

To send requests with included credentials utilize the method of the Web API on the client-side.

I hope the information above is useful.

Regards,
Stoyan
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