Can i get the Data Rate?

[daeynasvistas]

is it possible to get DR from ADR after join?

let say i whant to do this:
LMIC.setDrJoin(random(3,6));

because of this:

Importantly, the LoRa modulation spreading factors are inherently orthogonal. This means that signals modulated with different spreading factors and transmitted on the same frequency channel at the same time do not interfere with each other.
https://lora-developers.semtech.com/documentation/tech-papers-and-guides/lora-and-lorawan/

if you random node DR .. you can have many more nodes with the same gateway in the same area.

but to do that its better to know the join DR (node may be fare away with DR1)

LMIC.setDrJoin(random(x,6));
x-> will be the DR of join.