OneDrive direct download link

Hi, 

We have tried to get direct download link or to access publicly shared drive file with Graph API .

It seems that the the URL structure has changed as well as the API.

The thing behind the API is that i cant access file though https://graph.microsoft.com/v1.0/shares/{sharedDriveItem-id}
this endpoint since when i get the link and try to encode it to get sharedDriveItem-id the response is that the 

"The sharing link no longer exists, or you do not have permission to access it.".

Anyone has any idea how to get direct download URL from initial public share URL give by someone?

Thank you.