You can essentially recognize the info hash to automatically generate the magnet link.
Any info hash should work if you just add :
magnet:?xt=urn:btih:
followed by the info hash string.
So, for example...
Info Hash: 4317c7bb92a3e401fbb9e710ca4f574cd158f588
If the app would automatically add the magnet:?xt=urn:btih:
Then :
magnet:?xt=urn:btih:4317c7bb92a3e401fbb9e710ca4f574cd158f588
in a string with no spaces becomes a working magnet link to add as a torrent & start downloading.