Middleware in the router?

Question

Node.js

There is a main application file - app.js.
It includes, for example, middleware:

app.enable('trust proxy');
app.use(helmet());
app.use(compression());

Next, the router is connected:

var baseRouter = require('./routes/baseRouter.js');
app.use('/', baseRouter);

Question. will the middleware from app.js already work for baseRouter.js? Or should it be duplicated inside baseRouter.js?

Answer 1

Yes, it will.
Application
Layer Middleware Router Layer Middleware