node.js - Add session support to express after setup -

I'm just starting to remove nodes and I forgot to enter the flag for session support < Can I run the above command without writing it on anything I've already added or changed or do I have to do something else?

This is not as obvious as adding a new dependency (stylus) for the package. Json and rerun $ npm installed

your express app Just add session middleware to JS file.

  App (Express cookieParser ()); App Use (express session ({secret: '1234567890 quarity'}));   
 Make sure it comes after the  express.cookieParser ()  call. Also, update  secret  to protect the value in a random string.