About list_shared_links

The /2/sharing/list_shared_links endpoint will return existing shared links for files and folders in the connected account. Note that normal files don't have shared links created for them by default, so there won't be any returned for a file if one hasn't been explicitly created.

Some special kinds of items though, such as cloud docs like Paper docs, may automatically have shared links.

And different kinds of shared links have may have different components like you mentioned. For instance, "/s/" is used in shared links for individual normal files, and "/scl/fi" is used in shared links for some other kinds of items, such as cloud does like Paper docs.

Thank you for teaching me!
I have an additional question.

The return value of list_shared_links is
Some files
"Links": [{". Tag": "file", "url": "https://www.dropbox.com/s/～～～～～",]
On the other hand
"Links": [{". Tag": "folder", "url": "https://www.dropbox.com/sh/～"]
There is a file that returns the folder information first. What is the difference?
Is it possible that the file is restricted?
I don't know the cause, so please let me know who knows.

When supplying a particular path, the /2/sharing/list_shared_links endpoint "returns a list of all shared links that allow access to the given path - direct links to the given path and links to parent folders of the given path". So, if you call it for a specific file and see a folder link, that means that there's a shared link for a parent folder that enables access to that requested file. If you only want to links to the file itself, "Links to parent folders can be suppressed by setting direct_only to true".

Thank you very much. I'm approaching a solution!