app.on()

app.on('mount', callback(parent))

The mount event is fired on a sub-app, when it is mounted on a parent app. The parent app is passed to the callback function.

NOTE

Sub-apps will:

Not inherit the value of settings that have a default value. You must set the value in the sub-app.
Inherit the value of settings with no default value.

For details, see Application settings.

var admin = express();

admin.on('mount', function (parent) {
  console.log('Admin Mounted');
  console.log(parent); // refers to the parent app
});

admin.get('/', function (req, res) {
  res.send('Admin Homepage');
});

app.use('/admin', admin);

Links:

http://expressjs.com/en/4x/api.html#app.onmount

doc_Express

2016-05-02 16:34:29

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