Microsoft Graph Shares

Microsoft Graph Shares is the part of Microsoft Graph that lets apps access a OneDrive or SharePoint item by its sharing link or token, without needing to know the site, drive, or item IDs. Given a share URL, you can resolve it to a sharedDriveItem and then work with the underlying driveItem or listItem: read metadata, navigate folder children, fetch thumbnails, and download contentand, if the link grants edit rights, make changes. It works across OneDrive (personal and business) and SharePoint, including anonymous links, by using an encoded form of the sharing URL (often the u! token) at the /shares/{shareIdOrUrl} endpoint. This is distinct from listing items shared with a user; Shares is specifically for dereferencing and operating on a single shared link in a uniform way.