How to get the total content size of a .torrent file or a magnet link?

[Shai1436]

How to get the total content size of a .torrent file or a magnet link without adding it to a client?
We can add the link to the client, get the total size and remove it from the client. (But it won't delete the file in the temporary folder).
Isn't there a better way to do this? Thanks!

[SilentBot1]

Hey @Shai1436,

Your best choice would be to parse the torrent with parse-torrent and then use the .length property though this would only work for a .torrent file.

Since magnetURI don't contain the metadata, you would have to first find the metadata from a peer before you would know the length, you could use torrent-discovery. though if you use client.add from webtorrent and save the metadata on the metadata event and then destroy the torrent before the ready event, no store should be created. (after looking through, when metadata fires the store is created, ready is only fired once the store is fully created)

Hope this helps!