Why not app.use(generator) ?

Like this

app.use(function *(next) {
    var start = new Date;
    yield next;
    var ms = new Date - start;
    console.log('%s %s - %s', this.method, this.url, ms);
});

Is there a reason for that?

[tj]

maybe we’ll see it changed:

[tj]

another nice thing about the dispatcher approach though is we can remove downstream, since we can check that it’s reached the furthest downstream middleware