Expose vs Creating object in Router file of Nodejs

问题

So, I just started with expressjs 4.0.0 and came across the express.Router() object, which is really nice.

Problem is, now that all my routes are in another file, how do I expose an object to the routes file ?

serverjs file:

...
var passport = require('passport');
var router = require('./app/routes.js')(passport); //WILL NOT WORK
app.use('/', router);
app.listen(8080);

routes.js file:

...
var express = require('express');
var router = express.Router(); //new feature in expressjs 4.0
//routes go here
module.export = router;

So, how should I access passport object in router file ? Should I create a new object or is there a way to pass the server.js object to router.js file ?

回答1:

You could wrap your router.js in a function that accepts the passport object as parameter and handles the instantiation of the router also. Then, module.export that function instead of only the router.

EDIT: including example

server.js:

var passport = require('passport');
var router = require('./app/routes')(app, passport);
app.use('/', router);
app.listen(8080);

routes.js:

var express = require('express');
module.exports = function(app, passport){

   var router = express.Router();

   // routes go here
   // do stuff with passport

   return router;

}

回答2:

this way works

    var express = require('express')
  , home = require(_pathtoyourroutes.js)
app.get('/', home.index);

//router.js

exports.index = function(req, res){
    var d = new Date();
  res.render('index', { title: 'Hello world', description:'Hello world this is a awesome site.', stylesheet: 'body.css', jsfile: 'home.js' });
};

来源：https://stackoverflow.com/questions/23159803/expose-vs-creating-object-in-router-file-of-nodejs

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javascript

node.js

express

mean-stack