我一直在关注Coursera for NodeJs的服务器端教程,问题是我可以使用邮递员(http://localhost:3000/users/signup)注册并且注册成功,但是每当我想登录 (http://localhost:3000/users/login) 我收到一条错误消息:“Unknown authentication strategy 'local'” at ...\passport\lib\middleware\authenticate.js:190:39。>
authenticate.js:
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var User = require('./models/user');
exports.local = passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serialize());
passport.deserializeUser(User.deserialize());
users.js:
var express = require('express');
var router = express.Router();
const bodyParser = require('body-parser');
var User = require('../models/user');
var passport = require('passport');
router.use(bodyParser.json());
/* GET users listing. */
router.get('/', function(req, res, next) {
res.send('respond with a resource');
});
router.post('/signup', (req, res, next) => {
User.register(new User({username: req.body.username}),
req.body.password, (err, user) => {
if(err) {
res.statusCode = 500;
res.setHeader('Content-Type', 'application/json');
res.json({err: err});
}
else {
passport.authenticate('local')(req, res, () => {
res.statusCode = 200;
res.setHeader('Content-Type', 'application/json');
res.json({success: true, status: 'Registration Successful!'});
});
}
});
});
router.post('/login', passport.authenticate('local'), (req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'application/json');
res.json({success: true, status: 'You are successfully logged in!'});
});
router.get('/logout', (req, res) => {
if (req.session) {
req.session.destroy();
res.clearCookie('session-id');
res.redirect('/');
}
else {
var err = new Error('You are not logged in!');
err.status = 403;
next(err);
}
});
module.exports = router;
app.js:
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
const mongoose = require('mongoose');
const Menu = require('./models/menu');
var session = require('express-session');
var FileStore = require('session-file-store')(session);
var passport = require('passport');
const url = 'mongodb://localhost:27017/lebEats';
const connect = mongoose.connect(url,{useNewUrlParser: true});
connect.then((db) => {
console.log("Connected correctly to server");
}, (err) => { console.log(err); });
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var menuRouter = require('./routes/menuRouter');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));
//app.use(cookieParser('12345-67890-09876-54321'));
app.use(session({
name: 'session-id',
secret: '12345-67890-09876-54321',
saveUninitialized: false,
resave: false,
store: new FileStore()
}));
app.use(passport.initialize());
app.use(passport.session());
app.use('/', indexRouter);
app.use('/users', usersRouter);
function auth (req, res, next) {
console.log(req.user);
if (!req.user) {
var err = new Error('You are not authenticated!');
err.status = 403;
next(err);
}
else {
next();
}
}
app.use(auth);
app.use('/platters',menuRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;
提前谢谢各位!