I am currently trying to implement implement ldap authentication using passport js. Now if I try to add passport configuration outside app file : for example config/passport

const opts = {
    server: {
      
    },
    credentialsLookup: basicAuth
  };


 module.exports = (passport) => {
   passport.use(new LdapStrategy(opts));
 }

and import config using require('./config/passport')(passport); then it is not working and says missing credential from authenticate middleware.

But if I put options in app.ts file and initialise strategy in app.ts file then it works perfectly fine.