Javascript 关于节点bcrypt的一般问题

此函数处理用户提供的用户名和密码。哪个对象将此信息存储在节点中供程序访问？什么加载代码以提供此对象的值

var bcrypt = require("bcrypt");
var mc = require('mongodb').MongoClient;
var playersCollection;

var start = function(req, res){
    var playername = req.body.playername;
    var password = req.body.password;

    playersCollection.findOne({playername: playername}, function(err, player){

    if (err || !player){
        req.session.destroy(function(err) {
        res.redirect("/?error=invalid playername or password"); 
        });
        return;
    }

    bcrypt.compare(password, player.password, function(err, authenticated){
        if(authenticated){
            req.session.player = player;
            delete req.session.player._id;
            res.redirect("/" + player.room);
        } else {
            req.session.destroy(function(err) {
            res.redirect("/?error=invalid playername or password");
            });
        }
    });
    });
}

我们是在

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希望使用我们的代码作为参考可以帮助您。

这是访问MongoDB获取凭据

...
userSchema.statics.encryptPassword = function(password, done) {
  var bcrypt = require('bcrypt');
  bcrypt.genSalt(10, function(err, salt) {
    if (err) {
      return done(err);
    }

    bcrypt.hash(password, salt, function(err, hash) {
      done(err, hash);
    });
  });
};
userSchema.statics.validatePassword = function(password, hash, done) {
  var bcrypt = require('bcrypt');
  bcrypt.compare(password, hash, function(err, res) {
    done(err, res);
  });
};
...