old_contents: var url = require('url');
  var path = require('path');
  var querystring = require('querystring');
  var https = require('https');
  var request = require('request');
  
  // var spotifyAuthKeys = require('./spotifyAuthKeys');
  // var mg_models = require('./mg_models');
  // var spotifyCalls = require('./spotifyCalls');
  
  // Spotify OAuth
  var redirect_uri = 'http://localhost:3000/authed'; 
  var stateKey = 'spotify_auth_state';
  var client_id = require('./spotifyAuthKeys').client_id;
  var mg_models = require('./mg_models');
  
  var routes = {};
  
  /* Renders the homepage (/) */
  routes.home = function(req, res) {
    res.render('home', {title: 'Tindify'});
  }
  
  routes.authed = function(req, res) {
    res.render('authed', {title: 'logged in'});
  }
  
  routes.getUser = function(req, res) {
    console.log("GET USER GET USER GET USER");
    console.log(req.user.token)
    var options = {
      url: "https://api.spotify.com/v1/users/1236809392/playlists",
      headers: {
        Authorization: "Bearer " + req.user.token
      }
    }
    request.get(options, function (error, response, body) {
        console.log("BODY: " + body)
      });
    res.render('home', {title: 'TTINDINDS'});
  }
  
  routes.login = function(req, res) {
  
    // var client_id = process.env.SPOTIFY_KEY;
    // var client_secret = process.env.SPOTIFY_SECRET;
    // var redirect_uri = 'http://localhost:3000/authed';
    // var stateKey = 'spotify_auth_state';
    // var state = generateRandomString(16);
    // res.cookie(stateKey, state);
  
    // // your application requests authorization
    // var scope = 'user-read-private user-read-email';
    // res.redirect('https://accounts.spotify.com/authorize?' +
    //   querystring.stringify({
    //     response_type: 'code',
    //     client_id: client_id,
    //     scope: scope,
    //     redirect_uri: redirect_uri,
    //     state: state
    //   }));
  };
  
  var generateRandomString = function(length) {
    var text = '';
    var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  
    for (var i = 0; i < length; i++) {
      text += possible.charAt(Math.floor(Math.random() * possible.length));
    }
    return text;
  };
  
  module.exports = routes;
  
new_contents: var url = require('url');
  var path = require('path');
  var querystring = require('querystring');
  var https = require('https');
  var request = require('request');
  
  // var spotifyAuthKeys = require('./spotifyAuthKeys');
  // var mg_models = require('./mg_models');
  // var spotifyCalls = require('./spotifyCalls');
  
  // Spotify OAuth
  var redirect_uri = 'http://localhost:3000/authed'; 
  var stateKey = 'spotify_auth_state';
  var client_id = require('./spotifyAuthKeys').client_id;
  var mg_models = require('./mg_models');
  
  var routes = {};
  
  /* Renders the homepage (/) */
  routes.home = function(req, res) {
    res.render('home', {title: 'Tindify'});
  }
  
  routes.authed = function(req, res) {
    res.render('authed', {title: 'logged in'});
  }
  
  routes.getUser = function(req, res) {
    console.log("GET USER GET USER GET USER");
    console.log(req.user.token)
    var options = {
      url: "https://api.spotify.com/v1/users/"+req.user.id+"/playlists",
      headers: {
        Authorization: "Bearer " + req.user.token
      }
    }
    request.get(options, function (error, response, body) {
        console.log("BODY: " + body)
      });
    res.render('home', {title: 'TTINDINDS'});
  }
  
  routes.login = function(req, res) {
  
    // var client_id = process.env.SPOTIFY_KEY;
    // var client_secret = process.env.SPOTIFY_SECRET;
    // var redirect_uri = 'http://localhost:3000/authed';
    // var stateKey = 'spotify_auth_state';
    // var state = generateRandomString(16);
    // res.cookie(stateKey, state);
  
    // // your application requests authorization
    // var scope = 'user-read-private user-read-email';
    // res.redirect('https://accounts.spotify.com/authorize?' +
    //   querystring.stringify({
    //     response_type: 'code',
    //     client_id: client_id,
    //     scope: scope,
    //     redirect_uri: redirect_uri,
    //     state: state
    //   }));
  };
  
  var generateRandomString = function(length) {
    var text = '';
    var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  
    for (var i = 0; i < length; i++) {
      text += possible.charAt(Math.floor(Math.random() * possible.length));
    }
    return text;
  };
  
  module.exports = routes;
  
subject: generalize the userID in api call