Dynamic callbackURL

At the moment I have to read the host from a configuration file since my application is sitting behind a reverse proxy and thus does not have the correct host set in the request.

passport.use('google:login', new GoogleStrategy({
      clientID: <CLIENT_ID>,
      clientSecret: <CLIENT_SECRET>,
      callbackURL: host + '/auth/google/callback',
      passReqToCallback: true
    }, callback
  )
)

Is there a way to have something that looks like this?

passport.authenticate('google:login', { callbackURL: domain + '/auth/google/callback' })

[AuspeXeu]

Alright. I figured it out. At least how it works for my setup. I am operating behind an nginx reverse proxy. I made the following two adjustments to get it to work.

1. To the nginx proxy config add the following lines

proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Proto $scheme;

1. When creating the strategy, specify the undocumented option proxy as follows

passport.use('google:login', new GoogleStrategy({
      clientID: <CLIENT_ID>,
      clientSecret: <CLIENT_SECRET>,
      callbackURL: host + '/auth/google/callback',
      passReqToCallback: true,
      proxy: true
    }, callback
  )
)

So long…

Edit: Maybe someone could make a PR to document this option?

[AuspeXeu]

@jkhusanov you referring to nodejs server code? I extracted the host like this:

const host = req.headers.referer.match(/^(http[s]{0,1}:\/\/[^/]*).*/)