如何将数据从 module.export 函数传递到对象

我有一个简单的Node/Express应用程序，并试图将数据从javascript函数传递到模板(由jade提供支持(。

javascript 函数看起来像这样：

module.exports = {
  getFeatures: function() {
    var request = require("request")
    // ID of the Google Spreadsheet + Base URL
    var spreadsheetID = "abcdefg-123456";
    var sheetID = "od6";
    var url = "https://spreadsheets.google.com/feeds/list/" + spreadsheetID + "/" + sheetID + "/public/values?alt=json";
    //empty array for features
    var features = [];
    //get the features
    request({
        url: url,
        json: true
    }, function (error, response, body) {
        if (!error && response.statusCode === 200) {
            var data = body.feed.entry;
            data.forEach(function(item) {
                var obj = {
                    pub: item.gsx$publication.$t,
                    date: item.gsx$date.$t,
                    title: item.gsx$title.$t,
                    url: item.gsx$url.$t,
                }
                features.push(obj);
            });
            console.log("features", features"); //prints array containing all objects to server console
            return features;
        }
    });
  }
};

主应用程序如下所示：

'use strict';
var express = require('express');
var jade = require('jade');
var gsheets = require("./gsheets.js"); //pulls in module.exports from above
var featuresOld = require('../private/features.json'); //original json pull (a single array of objects)
var port = process.env.PORT || 3000;
var app = express();
// defining middleweare
app.use('/static', express.static(__dirname + '../../public'));
app.set('view engine', 'jade');
app.set('views', __dirname + '/templates');
...
// features route
app.get('/features', function(req, res) {
  var path = req.path;
  res.locals.path = path;
  var features = gsheets.getFeatures(); //attempting to call js function above
  res.render('features', {features: features}); //trying to pass data into a template
});

第一个函数成功地将对象数组打印到服务器控制台，所以我认为错误在于我在主应用程序中如何调用它.js。(请注意，它仅在我输入为gsheets.getFeatures();时打印，而不是var features = gsheets.getFeatures();。

另请注意，featuresOld变量是一个已成功传递到玉石时间的对象数组，因此错误不在res.render('features', {features: features});行中。

我敢肯定这很简单，但我似乎想不通。任何帮助都非常感谢，谢谢。