We Keep Coding

How to pass data "controller" instead of "app.js" in Nodejs

I am working on Nodejs(Express.js),I am sending Form data to controller but not working for me,I am getting error "TypeError: Cannot read property 'name' of undefined in Nodejs", But Main problem is my code is working/getting data in "app.js" but i want to get data in "userController" because i want to use MVC strtucre,Here is my root.js
var express=require('express');
var router= express.Router();
var controllers= require('../controllers');
router.get('/', controllers.homeController.index);
router.get('/signup', controllers.userController.signup);
router.post('/signup', controllers.userController.save);
router.get('/login', controllers.userController.login);
router.get('/dash', controllers.userController.dash);
module.exports = router;
Here is my userController.js file
userController.save = function (req, res, next) {
var name = req.body.name;
console.log(name);
}
Here is my app.js, How can i get data in "userController" instead of "app.js",Thank you in advance.
const express = require('express');
const mysql = require('mysql');
const expressValidator = require('express-validator');
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
const session = require('express-session');
const flash = require('connect-flash');
const app = express();
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use('/', routes);
app.set('view engine', 'pug');
app.set('views', path.join(__dirname, 'views'));
app.use(express.static(__dirname + '/public'));
app.use(cookieParser('keyboard cat'));
const PORT = 4000
app.listen(PORT, function (err) {
if (err) console.log(err);
console.log("App started on PORT", PORT);
});

I have reorganized your codes. Please make sure your filte path declaration is correct.
var express=require('express');
var router = express.Router();
var controllers= require('../controllers/userController'); // if userController.js in controller folder.
router.get('/', controllers.homeController_index);
router.get('/signup', controllers.userController_signup);
router.post('/signup', controllers.userController_save);
router.get('/login', controllers.userController_login);
router.get('/dash', controllers.userController_dash);
module.exports = router;
userController.js
const userController_save = function (req, res, next) {
var name = req.body.name;
console.log(name);
}
app.js
const express = require('express');
const mysql = require('mysql');
const expressValidator = require('express-validator');
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
const session = require('express-session');
const flash = require('connect-flash');
const path = require("path");
const app = express();
const routes = require('./routes/root'); // If your root.js inside a routes folder
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.set('view engine', 'pug');
app.set('views', path.join(__dirname, 'views'));
app.use(express.static(__dirname + '/public'));
app.use(cookieParser('keyboard cat'));
app.use('/', routes);
const PORT = 4000
app.listen(PORT, function (err) {
if (err) console.log(err);
console.log("App started on PORT", PORT);
});

Problem in rendering ejs template with Express

I am using Node.js together with Express and EJS.
Below is my code:
var express = require('express');
var path = require('path');
var bodyParser = require('body-parser');
var app = express();
var urlencodedParser = bodyParser.urlencoded({ extended: false });
var publicPath = path.resolve(__dirname, 'public');
app.use(express.static(publicPath));
//app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.get('/form_get.html', (req, res) => {
res.sendFile(__dirname + "/" + "form_get.html")
})
app.get('/process_get', (req, res) => {
console.log(req.query.first_name);
res.render(path.join(__dirname+'/views/thankyou.ejs'), { name: req.query.first_name});
})
var server = app.listen(3000, () => {
var host = server.address().address;
var port = server.address().port;
console.log(`Example app listening at ${host}:${port}`);
})
My folder structure is below:
mysql (folder)
node_modules (folder)
app4.js (file)
package.json (file)
public (folder, it contains form_get.html)
views (folder, it contains thankyou.ejs)
The problem is the failing to look up thankyou.ejs into the views folder.
I get the following error message:
Error: Failed to lookup view "thankyou.ejs" in views directory
".../mysql/views"
What can be the problem?

When You use app.set('view engine', 'ejs'); It is important to note that res.render() will look in a views folder for the view.
In this case
I mirrored Your project and it works fine with couple tiny changes...
Project Folder and file structure.
app.js
var express = require("express");
var path = require("path");
var bodyParser = require("body-parser");
var app = express();
var urlencodedParser = bodyParser.urlencoded({ extended: false });
var publicPath = path.resolve(__dirname, "public");
app.use(express.static(publicPath));
app.set("view engine", "ejs");
app.get("/form_get", (req, res) => {
res.sendFile(__dirname + "/" + "form_get.html");
});
app.get("/process_get", (req, res) => {
res.render("thankyou");
});
var server = app.listen(3000, () => {
var host = server.address().address;
var port = server.address().port;
console.log(`Example app listening at ${host}:http://localhost:${port}`);
});
Output:
http://localhost:3000/process_get (thankyou.ejs) file.
Output:
http://localhost:3000/form_get (form_get.html) file

NODE.JS Cannot get my data right, any input?

I am new to Node (frameworks in general), and I have some problems that I cannot find answers to after searching for days.
When I click on a specific client, I now get redirected to 'create-survey' which is correct. But after that I want the url to be something like '/create-survey/companyx' and get the data with me from that specific client that I clicked on in the new view '/create-survey/companyx'.
index.js:
router.get('/create-survey/:company', ensureAuthenticated, function(req, res) {
Client.find({}, {}, function (err, docs){
res.render('create-survey/:company', {"client" : docs});
})
});
app.js
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var exphbs = require('express-handlebars');
var expressValidator = require('express-validator');
var flash = require('connect-flash');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var mongo = require('mongodb');
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/loginapp');
var db = mongoose.connection;
// Routes
var routes = require('./routes/index');
var users = require('./routes/users');
// Init App
var app = express();
// View Engine
app.set('views', path.join(__dirname, 'views'));
app.engine('handlebars', exphbs({defaultLayout:'layout'}));
app.set('view engine', 'handlebars');
// BodyParser Middleware
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
// Set Static Folder
app.use(express.static(path.join(__dirname, 'public')));
// Express Session
app.use(session({
secret: 'secret',
saveUninitialized: true,
resave: true
}));
// Passport init
app.use(passport.initialize());
app.use(passport.session());
// Express Validator
app.use(expressValidator({
errorFormatter: function(param, msg, value) {
var namespace = param.split('.')
, root = namespace.shift()
, formParam = root;
while(namespace.length) {
formParam += '[' + namespace.shift() + ']';
}
return {
param : formParam,
msg : msg,
value : value
};
}
}));
// Connect to Flash
app.use(flash());
// Global Vars
app.use(function (req, res, next) {
res.locals.success_msg = req.flash('success_msg');
res.locals.error_msg = req.flash('error_msg');
res.locals.error = req.flash('error');
res.locals.user = req.user || null;
next();
});
app.use('/', routes);
app.use('/users', users);
app.use(express.static('public'));
// Set Port
app.set('port', (process.env.PORT || 3000));
app.listen(app.get('port'), function(){
console.log('Server started on port '+app.get('port'));
});
and the last, create-survey.handlebars
<h2 class="page-header">Create a survey for {{client.company}}</h2>
<tr>
<strong>Company</strong>
<td><p>{{client.company}}</p></td>
<strong>Contact person</strong>
<td><p>{{client.contact}}</p></td>
<strong>Email adress</strong>
<td><p>{{client.email}}</p></td>
</div>
As I said, I'm a beginner that still is trying to learn, so come with all kind of feedback and help and I'll be happy!

Unable to render index.html file from my view folder in angular2

I'm creating a MEAN Stack application where angular has setup in /client folder. I want that when I run npm start command in /client folder it should render index.html file from /views folder, what I'm doing wrong getting this error
Cannot GET /
Folder structure is as follows.
meanApp
----- client (angluar2 setup here but doesn't have an index.html file)
---------- app
----- views
----------index.html
----- routes
----- server.js
Codes in server.js
var express = require("express");
var path = require("path");
var bodyParser = require("body-parser");
var index = require('./routes/index');
var tasks = require("./routes/tasks");
var app = express();
//View engines
app.set("views", path.join(__dirname,'views'));
app.set("view engine", 'ejs');
app.engine("html", require("ejs").renderFile);
//Set static folder
app.use(express.static(path.join(__dirname,'client')));
// Body parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:false}));
app.use('/', index);
app.use('/index', index);
app.use('/api', tasks);
//listen
app.listen(3000, function(){
console.log("Server listing # 3000");
});

Here you need to define route for express server like :
app.set('appPath', 'client'); //this is a folder where your index.html is
app.route('/*')
.get(function(req, res) {
res.sendfile(app.get('appPath') + '/index.html');
});
This will cause every call in broweser to render index file.

const http = require('http');
fs = require('fs');
var express = require('express');
var bodyParser = require('body-parser');
var expressValidator = require('express-validator');
var app = express();
app.set('appPath', 'views');
app.use(express.static(__dirname + '/views'));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(expressValidator());
app.use('/*', function(req, res, next) {
res.sendfile(app.get('appPath') + '/index.html');
});
http.createServer(app).listen(3001, function() {
console.log(`Express server listening on port 3001`);
});
exports = module.exports = app;

Cannot GET /index in nodejs

I have written a server named "app.js" which display many pages of my web site.
var http=require("http");
var express = require('express');
var app = express();
var server = http.createServer(app);
var ejs = require('ejs');
var path = require('path');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
// routes
var route = require('./route');
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
server.listen(3000,function(){
console.log("server listen at localhost:3000");});
app.get('/', route.index);
route.js:
var index = function(req, res, next) {
if(!req.isAuthenticated()) {
res.redirect('/index');
} else {
var user = req.user;
if(user !== undefined) {
user = user.toJSON();
}
res.render('menu', {title: 'Home', user: user});
}
};
module.exports.index = index;
The folder of project:
/interface
/views
index.ejs
app.js
route.js
How can I fix it ? what is the mistake in my program?

Your app.get is unreachable after server.listen.
Place it before:
app.js:
var http=require("http");
var express = require('express');
var app = express();
var server = http.createServer(app);
var ejs = require('ejs');
var path = require('path');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
// routes
var route = require('./route');
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// here:
app.get('/', route.index);
server.listen(3000,function(){
console.log("server listen at localhost:3000");});
// app.get('/', route.index); <= not here
When not authenticated, redirection is not what you want, but:
route.js:
// res.redirect('/index');
res.render('index');