How to add authentificaion method to request?

[Suliman via Digitalmars-d-learn]

I am using dlang-requests. I need authentificate on 
https://scihub.copernicus.eu/dhus/login and than do some 
data-parsing.

     MultipartForm form;
     form.add(formData("login_username", "Suliman"));
     form.add(formData("login_password", "123")); // changed
     auto content = 
postContent("https://scihub.copernicus.eu/dhus/login", form);
     writeln("Output:");
     writeln(content);

Return error about login pass. So it's seems that I need to add 
BasicAuthentication method type. But how to add it?


Browser console show next: https://snag.gy/VXaq2R.jpg