在 Node Js 中为函数设置会话

Question

我正在使用 Node JS 开发一个 Web 应用程序，但我遇到了 req 中的会话存储问题。

我目前通过使用我的 app.js 来进行会话：

// Enable sessions
app.use(session({
  secret: '***********',
    resave: 'true',
  saveUninitialized: true
}));

app.use(passport.initialize());
app.use(passport.session());

// view engine setup
app.engine('.hbs', exphbs({defaultLayout: 'main', extname: '.hbs'}));
app.set('view engine', '.hbs');

var routes = require('./routes/index')(passport, mongoose);

app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, '/public')));
app.use(express.static(__dirname + '/node_modules'));

app.use('/', routes);

还有我的 routes.js：

var express = require('express');
var https = require('https');
var passport = require('passport');
var router = express.Router();
var User = require('../models/User.js');
var Api = require('./api.js');
var request = require('request');
var URL = "https://api.************.com";

module.exports = function(passport, mongoose) {

//main
router.get('/', function(req, res) {
    console.log("Session: " + req.session.test);
  res.render('partials/index', { layout: 'main' });
});

router.get('/login', 
  passport.authenticate('**********', { failureRedirect: '/login' }),
  function(req, res) {
    req.session.test = "test";
    // Successful authentication

var Api = require('./api.js');

Api.getUser(); < ERROR Happens in this file

});

router.get('/home/logout', function(req, res) {

    req.logout();
    req.session.destroy();
    res.redirect('/');

});

    return router;

}

现在我正在尝试创建一个名为 API.js 的单独文件来存储对第三方 api 的 API 调用，其功能如下：

var express = require('express');
var request = require('request');
var https = require('https');
var passport = require('passport');
var User = require('../models/User.js');
var Api = require('./api.js');
var URL = "https://api.******.com";

exports.getUser = function(req, result) {

    console.log(req.session.test); <ERROR IS HERE

    request.get({
        uri: URL + '/user/me/',
        headers: {Authorization: 'bearer ' + req.user.accessToken},
        json: true
      }, function(e, r, body) {

            if(e) {

                return "{error: true}";

            }

        return body;

    });

};

exports.getVehicles = function(req, result) {

    request.get({
        uri: URL + '/vehicles/',
        headers: {Authorization: 'bearer ' + req.user.accessToken},
        json: true
      }, function(e, r, body) {

            if(e) {

                return "{error: true}";

            }

        return body;

    });

};

但是，每次我从 routes.js 调用函数时，我都会收到以下错误：

TypeError: 无法读取未定义的属性“会话”

当我尝试在那里调用 req.user 时，我也会收到错误。

从我刚刚调用的路线：

var Api = require('./api.js');

Api.getUser();

关于如何将会话传递给新文件或任何函数的任何想法？

Answer 1

1. 您无需调用和重新实例化 API，因为您已经定义了一次。
2. 您需要简单地传入req 对象。

在你的route.js

var express = require('express');
var https = require('https');
var passport = require('passport');
var router = express.Router();
var User = require('../models/User.js');
var Api = require('./api.js');
var request = require('request');
var URL = "https://api.************.com";

module.exports = function(passport, mongoose) {

//main
router.get('/', function(req, res) {
    console.log("Session: " + req.session.test);
  res.render('partials/index', { layout: 'main' });
});

router.get('/login', 
  passport.authenticate('**********', { failureRedirect: '/login' }),
  function(req, res) {
    req.session.test = "test";
    //// Successful authentication

    Api.getUser(res); 
});

router.get('/home/logout', function(req, res) {

    req.logout();
    req.session.destroy();
    res.redirect('/');

});

    return router;

}