Styjun

I am following this http://www.expertphp.in/article/user-login-and-registration-using-nodejs-and-mysql-with-example link

I get a cannot GET/ error and I have tried all the stackoverflow answers but it isn't getting solved.

var express=require("express");
var bodyParser=require('body-parser');
var app = express();
var authenticateController=require('./controllers/authenticate-controller');
var registerController=require('./controllers/register-controller');
app.use(bodyParser.urlencoded(extended:true));
app.use(bodyParser.json());
/* route to handle login and registration */
app.get('/', function (req, res) 
 res.render('index', );
 );
app.post('/api/register',registerController.register);
app.post('/api/authenticate',authenticateController.authenticate);
app.listen(8012);

this is my current code

As far as I understand, you're trying to send index.html at the path /. That is fine, but don't use render for that. Simply send index.html as such:

// replace this
app.get('/', function (req, res) 
 res.render('index', );
);
// by this
app.get('/', (req, res) => res.sendFile('full/path/to/index.html'))

Useful links:

• Express doc on res.render


• Express doc on res.sendFile

You have 2 ways:

1) reading index.html contents and serving it at root url:

const fs = require('fs');

const indexFileContent = fs.readFileSync('path/to/index.html'); // caching file content to variable, to avoid re-reading it
app.get('/', (req, res) => 
 res.send(indexFileContent);
);

2) defining ejs renderer as .html file renderer too:

const path = require('path');
const bodyParser = require('body-parser');
const express = require("express");
const app = express();

app.set('views', path.join(__dirname, 'views'));
app.set('view engine','ejs'); // make sure You've installed ejs: npm i --save ejs
app.engine('ejs', require('ejs').renderFile);
app.engine('html', require('ejs').renderFile); // defining html renderer engine

app.use(bodyParser.urlencoded(extended:true));
app.use(bodyParser.json());


app.get('/', (req, res) => res.render('index'));


// API controllers
const AuthController = require('./controllers/authenticate-controller');
const RegistrationController = require('./controllers/register-controller');

// API endpoints
app.post('/api/authenticate', AuthController.authenticate);
app.post('/api/register', RegistrationController.register);

app.listen(8012);

Pros-cons:

1-st example will simply read index.html once to variable and will serve that content, but will need restarting the app to re-read that file.

2-nd example is using .html files inside views folder as ejs files, that gives opportunity to pass variables to html files which is better that simply sending files, + You can include one html inside of another using <% include partials/header.ejs %>