title: load files from backend
body: <p>I'm using Angular with ASP.NET core 3.0  and kind of new,
  I've a function that save pdf files in the Backend asp.net in a Folder &quot;Resources\PdfFiles&quot;</p>
  <p>I got upload function to work fine, and it saves the files and it gives me the url of &quot;Resources\PdfFiles&quot; back, which is ok, but how do I display the pdf file from the FrontEnd, like is there any function, that I can retrieve the files from &quot;Resources\PdfFiles&quot;</p>
  <p>I just wanted to create a button, when a user click on it, it displays the pdf</p>
  <p>would you please help me out</p>