Express.js is the session and cookie used by the static file middleware?

Question

Express.js is the session and cookie used by the static file middleware?

With the following express.js application:

app.use( cookieParser );
app.use( session( /*options*/) );
app.use( serveStatic( './dir' ) );

app.get( '/foo', onlyLogicThatNeedsSession )

I presume that the session data is being acquired even when static files are being served.

1: is this correct?

If so, that would imply that the app would be better structure as:

app.use( serveStatic( './dir' ) );

app.get( 'foo', cookieParser, session, onlyLogicThatNeedsSession )

2: would the give a performance advantage? I.e. if the session store was redis, the redis server would not be getting hit when serving static files?

node.js
session
cookies
express

Answer 1

Yes, the middleware are executed in order, so ideally you would put the static middleware at the very top so that you can bypass any unnecessary additional request processing.