title: how to access a shared folder in onedrive without login
body: <p>I have an onedrive for business account. I shared a folder to anyone that anyone use can view or edit the folder.</p>
  
  <p>So anyone can enter this folder, view the files or upload files or edit the existing files.</p>
  
  <p>but I want to access this folder using microsfot graph APIs without login any user(because all the operations do not need to login).
  in the microsoft graph API document, all the accesses need an access token.</p>
  
  <p>anyone can help me?</p>