Use django web app through Moodle

... I'm trying to access to my web app Django through Moodle, I tried:

1. External Tool (LTI)
2. External DataBase
3. URL

I'm looking for the simplest way ... the simplest is the URL, but it's poor in security. The main idea is to access to my Django web with the same Profile that the user have in Moodle.

Some ideas?? Thank's for your time!!!