app.all()

app.all(path, callback [, callback ...])

This method is like the standard app.METHOD() methods, except it matches all HTTP verbs.

It’s useful for mapping “global” logic for specific path prefixes or arbitrary matches. For example, if you put the following at the top of all other route definitions, it requires that all routes from that point on require authentication, and automatically load a user. Keep in mind that these callbacks do not have to act as end-points: loadUser can perform a task, then call next() to continue matching subsequent routes.

app.all('*', requireAuthentication, loadUser);

Or the equivalent:

app.all('*', requireAuthentication)
app.all('*', loadUser);

Another example is white-listed “global” functionality. The example is similar to the ones above, but it only restricts paths that start with “/api”:

app.all('/api/*', requireAuthentication);