done is not a function error in passport js

问题

I'm using passportjs for the authentication and session. I get the ussername from mysql and the input field from client side but when the done is called on verification, I get done is not a function.

The server.js :

    var express = require('express');
var app = express();
var path = require('path');
var bodyParser = require('body-parser');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var cookieParser = require('cookie-parser');

// app.use(app.router);
app.use(passport.initialize());

app.use(passport.session());
app.use(bodyParser.json());

app.use(express.static(__dirname+"/staticFolder"));

var mysql = require('mysql');
var connection = mysql.createConnection({
    host:'127.0.0.1',
    user:'root',
    password:'sdf',
    database:'abc'
});
connection.connect(function(err){
    if(err){
        throw err;
    }
});

passport.serializeUser(function(user,done){
    console.log("serializeUser" + user);
    done(null,user.body.username);
})
passport.deserializeUser(function(id, done) {
     done(null, user);

 });


passport.use(new LocalStrategy({
    passReqToCallback : true

},function(username, password, done) {

    connection.query("select * from employeedetails where empid = "+username.body.username,function(err,user,w){
    if(err)
    {
        console.log(err+"fml $$$$$$$$$$");  
         return done(err);           
    }
    if(username.body.password == user[0].password){
    console.log(user[0].empid+" login");
     return done(null,user[0].empid);
  }
  else{
     return done(null,false,{message: 'Incorrect password'});
   console.log(user[0].empid+" fml"); 
  }

  });

}));



app.get('/',function(request,response){
    response.sendFile(__dirname+"/staticFolder/view/");
})

app.post('/saveEmployeeDetails',function(request,response){
    response.end();
})

app.get('/login',function(request,response){ //the file sent when /login is requested
    response.sendFile(__dirname+"/staticFolder/view/login.html");
})

app.post('/loginCheck',passport.authenticate('local', {
            successRedirect : '/', 
            failureRedirect : '/login', 
            failureFlash : true // 
    }),
        function(req, res) {
            console.log("hello");
            res.send("valid");
            res.redirect('/');
    });

回答1:

Can you please refer to the below link which talks about the same error

https://github.com/jaredhanson/passport/issues/421

It says when you remove the (passReqToCallBack: true) options the error does not occur

回答2:

In your passport.js config file, passport.use(new LocalStrategy) callback function depending on which strategy you are using you will need a certain number of arguments.I just had to add "req" as the first argument in mine.

passport.use(new LocalStrategy({
    passReqToCallback: true
},
function (req, apikey, done) {
    //ADD REQ UP HERE
    process.nextTick(function () {
        findByApiKey(apikey, function (err, user) {
            if (err) {
                return done(err);
            }
            if (!user) {
                return done(null, false, {
                    message: 'Unknown apikey : ' + apikey
                });
            }
            return done(null, user);
        })
    });
}));

来源：https://stackoverflow.com/questions/39031493/done-is-not-a-function-error-in-passport-js

标签

node.js

express

passport.js