A question

[Shelly7w7]

How do I capture the output send in the console ?

[jonathan-x01]

It is quite simple actually. You should use the response event to accomplish this.

const conn = new Rcon('localhost',1234,"my-pass");

conn.on('response',function(res){
    console.log(res);
});

But hopefully I understood you correctly though and this managed to help you.