Node.js 在哪里以及如何编写登录代码，并使用mongoose注册用户，以便将其保存到数据库

我正在做一个实践，以了解

passport local

的passport策略，所以我已经定义了很多代码。我需要知道我应该在这里编写哪些逻辑代码。 我使用的是

Angular2

ionic2

node.js

express.js

和

mongoose

passport.js

var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var User = require('./user');


passport.use(new LocalStrategy(
  function(username, password, done) {
    User.findOne({ username: username }, function (err, user) {
      if (err) { return done(err); }
      if (!user) { return done(null, false); }
      if (!user.verifyPassword(password)) { return done(null, false); }
      return done(null, user);
    });
  }
));

var mongoose = require('mongoose');
var Schema = moongoose.Schema;

var UserSchema = new Schema({
    email: String,
    password: String,
});
module.exports = mongoose.model('User',UserSchema);

var passport = require('passport');
var Service = require('./app/passport');
var authController  = require('./app/controllers/authentication');//this file is empty.

var requireLogin = passport.authenticate('local',{session:false});

module.exports = function(app){

    var auth = express.Router();

    app.use('/api/auth', auth);

    auth.post('/register',function(req, res){
        authController.register(req,res);
    } );

    auth.post('/login', requireLogin, function(req, res){
        authController.login(req, res);
    });
};

上述文件包含实施passport策略的代码，即

passport local

user.js

var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var User = require('./user');


passport.use(new LocalStrategy(
  function(username, password, done) {
    User.findOne({ username: username }, function (err, user) {
      if (err) { return done(err); }
      if (!user) { return done(null, false); }
      if (!user.verifyPassword(password)) { return done(null, false); }
      return done(null, user);
    });
  }
));

var mongoose = require('mongoose');
var Schema = moongoose.Schema;

var UserSchema = new Schema({
    email: String,
    password: String,
});
module.exports = mongoose.model('User',UserSchema);

var passport = require('passport');
var Service = require('./app/passport');
var authController  = require('./app/controllers/authentication');//this file is empty.

var requireLogin = passport.authenticate('local',{session:false});

module.exports = function(app){

    var auth = express.Router();

    app.use('/api/auth', auth);

    auth.post('/register',function(req, res){
        authController.register(req,res);
    } );

    auth.post('/login', requireLogin, function(req, res){
        authController.login(req, res);
    });
};

上面是我的用户模式，其中包含我的用户模型

routes.js

var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var User = require('./user');


passport.use(new LocalStrategy(
  function(username, password, done) {
    User.findOne({ username: username }, function (err, user) {
      if (err) { return done(err); }
      if (!user) { return done(null, false); }
      if (!user.verifyPassword(password)) { return done(null, false); }
      return done(null, user);
    });
  }
));

var mongoose = require('mongoose');
var Schema = moongoose.Schema;

var UserSchema = new Schema({
    email: String,
    password: String,
});
module.exports = mongoose.model('User',UserSchema);

var passport = require('passport');
var Service = require('./app/passport');
var authController  = require('./app/controllers/authentication');//this file is empty.

var requireLogin = passport.authenticate('local',{session:false});

module.exports = function(app){

    var auth = express.Router();

    app.use('/api/auth', auth);

    auth.post('/register',function(req, res){
        authController.register(req,res);
    } );

    auth.post('/login', requireLogin, function(req, res){
        authController.login(req, res);
    });
};

上面包含了路线

在护照上使用以下代码

passport.use(new LocalStrategy({
    usernameField: 'userId'
  },
function(username, password, done) {
    User.findOne({ email: username }, function (err, user) {
     if (err) { return done(err); }
      // Return if user not found in database
      if (!user) {
        return done(null, false, {
  message: 'User not found.. check username'
  });
      }
    // Return if password is wrong
    if (!user.validPassword(password)) {
     return done(null, false, {
    message: 'Password is wrong'
   });
  }
   // If credentials are correct, return the user object
  return done(null, user);
 });
 }
 ));

要注册，请使用下面的逻辑/代码

var register = function(req, res){
var data = req.body;

if(!data.emailId || !data.password){
res.json({
    "error": true,
    "errmsg": 'missing fieid value',
    "user": {}        
});    
} else {
var newUser = new User({
Email: data.emailId,
Password: data.password
});

// save the user
newUser.save(function(err, user) {
console.log(err);
if (err){
  res.json({
        "error": true,
        "errmsg": err,
        "user": {}
    });
} else {
  res.json({
        "error": false,
        "errmsg": null,
        "user": user
  });            
}             
});
}   
}

登入

var login = function(req, res){
passport.authenticate('local', function(err, user, info){
var token;

 // If Passport throws/catches an error
if (err) {
res.json({
        "error": true,
        "errmsg": err,
        "user": {}        
});
 return;
}

 // If a user is found
if(user){
//console.log('token',user);
token = user.generateJwt();
res.status(200);
res.json({
      "error": false,
      "errmsg": null,
      "user": token
  });
 } else {
 // If user is not found
 res.status(200).json({
        "error": true,
        "errmsg": info.message,
        "user": {}        
 });
 }
 })(req, res);  
  }

---

登录时，以用户名和passport的形式传递电子邮件将与数据库中存储的电子邮件相匹配。

我这里不使用jwt。在这种情况下，只需注释该代码并以json传递给用户即可