in the obnam backup software how do I set the sftp port?

Question

I want to do the backup on a non default port. With the sftp command I can use -P 1234 but the obnam software needs a path like so:

sftp://user@host/path/to/backup

Where can I add the sftp port?

Answer 1

I found it in the docs:

sftp://[user@]domain[:port]/path