Upload and Share iCloud Files by URL

I need to provide user's a way to upload content and access the content via a url in our app. It's very easy to do with Google, Microsoft, and others. Here are two examples:

Google Drive - Share files, folders and drives

https://www.dropbox.com/developers/documentation/http/documentation#file_requests-createhttps://developers.google.com/drive/api/v3/manage-sharing

Microsoft OneDrive - Create a sharing link for a DriveItem

https://docs.microsoft.com/en-us/onedrive/developer/rest-api/api/driveitem_createlink?view=odsp-graph-online

How do I accomplish this feature?