Render basic HTML view?
Asked Answered
A

33

321

I have a basic Node.js app that I am trying to get off the ground using the Express framework. I have a views folder where I have an index.html file. But I receive the following error when loading the web page:

Error: Cannot find module 'html'

Below is my code.

var express = require('express');
var app = express.createServer();

app.use(express.staticProvider(__dirname + '/public'));

app.get('/', function(req, res) {
    res.render('index.html');
});

app.listen(8080, '127.0.0.1')

What am I missing here?

Atom answered 25/12, 2010 at 7:12 Comment(0)
M
314

You can have jade include a plain HTML page:

in views/index.jade

include plain.html

in views/plain.html

<!DOCTYPE html>
...

and app.js can still just render jade:

res.render(index)
Marlow answered 19/1, 2012 at 6:49 Comment(9)
Just to note that what I want was to serve only one .html file because my app was single page ;)Stearic
This answer is excellent. Note you can also keep using layout and just put the include inside the content block.Lawerencelawes
Can We included multiple HTML/JS pages with this method ?Perisarc
shouldn't you be able to render that html page without a jade template just for initial testing of express?Superb
So do we have to create a jade template for each of our HTML files?Shayn
More of a hack rather than a solution.Unseen
As suggested above, this answer only works when using Jade template system. It doesn't work with e.g. handlebars.Zworykin
Make sure to install jade i.e. npm i jade to use this setupMallorca
One of the easiest approaches is sending the HTML back to the browser. ``` router.get('/about',function(req,res){ res.sendFile(path.join(__dirname+'/about.html')); }); ``` Or using rendering engines like Pug or Jade. I personally believe that sending the HTML build from frameworks like React.js is the easiest way to achieve rendering of the apps. This codeforgeek.com/render-html-file-expressjs covers most of it.Valenti
A
255

Many of these answers are out of date.

Using express 3.0.0 and 3.1.0, the following works:

app.set('views', __dirname + '/views');
app.engine('html', require('ejs').renderFile);

See the comments below for alternative syntax and caveats for express 3.4+:

app.set('view engine', 'ejs');

Then you can do something like:

app.get('/about', function (req, res)
{
    res.render('about.html');
});

This assumes you have your views in the views subfolder, and that you have installed the ejs node module. If not, run the following on a Node console:

npm install ejs --save
Abiogenesis answered 17/8, 2012 at 14:59 Comment(10)
why does the res.render require the .html extension in this case but not in the default case with jade. with the boilerplate code, it just calls res.render('index', { title: 'Express' }); but here, it's : res.render('about.html');Retired
@Transcendence, I'm not sure exactly. Perhaps you should open a new question.Abiogenesis
With Express 3.4.2: app.set('view engine', 'ejs');Daile
You should use the command 'npm install ejs --save' to update your package.jsonTahmosh
@Daile app.set('view engine', 'ejs'); only worked for me (express 3.5.1) when running from within same directory. To run, e.g. via startup script, I still had to do app.set('views', __dirname + '/views');. Just mentioning in case others have this issue.Glimmering
why do you need ejs?Superb
I currently have app.set('view engine', 'hbs'); should I attach another dependency (ejs)?Entrepreneur
Everything works but remember about correct path. For me works app.set('views', '../public/views'); because I have server.js and app.js in different location.Grayson
Hi, how you pass locals to the view in this case? For example how you handle in 'index.html' this locals.title?: router.get('/', function(req, res){ res.render('index', {locals: {title: 'Welcome!'}}); }); I tried ${title} and <%= title%?> but no success.Spies
Even though this answer is old and it didn't exactly work as described here, I managed to get this to work in a weird way. All the prep work for this answer worked, but when it came to actually rendering a html file, it threw up the same error OP mentioned in his question; Cannot find module 'html.' Then, I realized that regardless of what content is in the file just as long as the file extension is ejs, render procedure renders and client displays it with no errors. So, I changed all of my html files' extension to ejs and they are all being rendered successfully. Horay!!! :)Dispatch
W
73

From the Express.js Guide: View Rendering

View filenames take the form Express.ENGINE, where ENGINE is the name of the module that will be required. For example the view layout.ejs will tell the view system to require('ejs'), the module being loaded must export the method exports.render(str, options) to comply with Express, however app.register() can be used to map engines to file extensions, so that for example foo.html can be rendered by jade.

So either you create your own simple renderer or you just use jade:

 app.register('.html', require('jade'));

More about app.register.

Note that in Express 3, this method is renamed app.engine

Whitewing answered 25/12, 2010 at 18:41 Comment(4)
Note- app.register has been renamed app.engine in Express 3.Simaroubaceous
See answer from Andrew Homeyer. It is the actual answer.Bedraggle
From some other answer, for Express 4 I ended up using app.engine('.html', require('ejs').renderFile);Pfeffer
In express 4, you could also use: app.set('view engine', 'jade');Tani
C
62

You could also read the HTML file and send it:

app.get('/', (req, res) => {
    fs.readFile(__dirname + '/public/index.html', 'utf8', (err, text) => {
        res.send(text);
    });
});
Craig answered 22/6, 2011 at 9:21 Comment(9)
this solution is bad because no caching of the files ; it is read for every request.Helmholtz
its potentially pretty easy to cache it manually. Just store the read file a variable, and only read again, if that variable is blank. You could also use a JS object and store various files in various variables, with timestamps. Sure its more work than most people would do, but it's good with people new to node. It's easy to understandCumine
Yikes. This defeats the entire point of convention-oriented, streamlined architectures (like MVC).Bedraggle
@MarcelFalliere You're assuming that he wants to cache the file, or that he doesn't want to use a custom caching solution. Thank you keegan3d for the answer.Jaundice
@MarcelFalliere Then, what is the right solution? I see other answers that requiere new dependencies. Is it necessary just for serve html files?Entrepreneur
@benny @JCarlos the right solution IIMO is to use the static middleware of express.Helmholtz
awesome,I like native node.js APIPes
I have just one html file because I am using create-react-app and I need to serve the same HTML file for all URLs for react-router to work correctly. This solution seems perfect when I cache the contents in a variable!Euridice
This solution is great for me, thanks~Suit
T
46

try this. it works for me.

app.configure(function(){

  .....

  // disable layout
  app.set("view options", {layout: false});

  // make a custom html template
  app.register('.html', {
    compile: function(str, options){
      return function(locals){
        return str;
      };
    }
  });
});

....

app.get('/', function(req, res){
  res.render("index.html");
});
Topcoat answered 5/8, 2011 at 17:8 Comment(7)
had trouble with the exact configuration above, so I removed the dot from ".html" and added this: app.set('view engine', 'html'); app.set('views', __dirname + '/views'); for a perfect renderWurth
This is a bit weird... you should serve html as static files. This also gives you the benefit of better caching. Creating a custom "html compiler" seems wrong. If you need to send a file from within a route (which you very rarely need to do) just read and send it. Otherwise just redirect to the static html.Franciscofranciska
@Enyo this comment seems odd, considering HOW TO do what you are saying should be done is THE QUESTION BEING ASKED, and your answer is to just do it. How do you serve a static html with caching?Religious
@Tyrsius, well not really. I'm saying that you shouldn't just render an html file. If you really really have to send it from within a route you could read the file with fs and then send the plain text. What I suggest doing is redirecting to the html file instead of trying to directly render it inside the route.Franciscofranciska
I see an error on app.register. Perhaps it's been deprecated in express 3.0.0.rc3? TypeError: Object function app(req, res){ app.handle(req, res); } has no method 'register'Abiogenesis
This suggestion worked for me. All others seemed to either render the view showing the markup on screen or gave me errors in the node console. This was the only one that truly rendered the correct HTML.Revocable
@enyo, you missed the point of the steamlined architecture. When the pattern is controller/view (or /processor/view, whatever your specific architecture is), you can't deviate from that with with the obsolete model of extensions. You need to treat your HTML as rendered content like everything else. Keep it DRY, dude.Bedraggle
A
28
app.get('/', function (req, res) {
res.sendfile(__dirname + '/public/index.html');
});
Adsorbent answered 30/11, 2011 at 14:4 Comment(2)
sendfile is not cache in production mode so this is not a good solution.Alderman
@SeymourCakes Kindly correct me if I'm wrong, but I think sendFile now supports caching: devdocs.io/express/index#res.sendFileTuantuareg
T
22

If you're using express@~3.0.0 change the line below from your example:

app.use(express.staticProvider(__dirname + '/public'));

to something like this:

app.set("view options", {layout: false});
app.use(express.static(__dirname + '/public'));

I made it as described on express api page and it works like charm. With that setup you don't have to write additional code so it becomes easy enough to use for your micro production or testing.

Full code listed below:

var express = require('express');
var app = express.createServer();

app.set("view options", {layout: false});
app.use(express.static(__dirname + '/public'));

app.get('/', function(req, res) {
    res.render('index.html');
});

app.listen(8080, '127.0.0.1')
Tshombe answered 20/11, 2012 at 15:23 Comment(2)
Why do you repeat app.use(express.static(__dirname + '/public')); after you start the server with app.listen?Remunerative
what's the diff of serving the html page as static vs. just loading it non-static with express?Superb
S
15

I also faced the same issue in express 3.X and node 0.6.16. The above given solution will not work for latest version express 3.x. They removed the app.register method and added app.engine method. If you tried the above solution you may end up with the following error.

node.js:201
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
TypeError: Object function app(req, res){ app.handle(req, res); } has no method 'register'
    at Function.<anonymous> (/home/user1/ArunKumar/firstExpress/app.js:37:5)
    at Function.configure (/home/user1/ArunKumar/firstExpress/node_modules/express/lib/application.js:399:61)
    at Object.<anonymous> (/home/user1/ArunKumar/firstExpress/app.js:22:5)
    at Module._compile (module.js:441:26)
    at Object..js (module.js:459:10)
    at Module.load (module.js:348:31)
    at Function._load (module.js:308:12)
    at Array.0 (module.js:479:10)
    at EventEmitter._tickCallback (node.js:192:40)

To get rid of the error message. Add the following line to your app.configure function

app.engine('html', require('ejs').renderFile);

Note: you have to install ejs template engine

npm install -g ejs

Example:

app.configure(function(){

  .....

  // disable layout
  app.set("view options", {layout: false});

  app.engine('html', require('ejs').renderFile);

....

app.get('/', function(req, res){
  res.render("index.html");
});

Note: The simplest solution is to use ejs template as view engine. There you can write raw HTML in *.ejs view files.

Scudo answered 29/6, 2012 at 6:17 Comment(2)
Do you have to install ejs globally?Abiogenesis
it's tell me it can't find the 'index.html' fileBotzow
S
11

folder structure:

.
├── index.html
├── node_modules
│   ├──{...}
└── server.js

server.js

var express = require('express');
var app = express();

app.use(express.static('./'));

app.get('/', function(req, res) {
    res.render('index.html');
});

app.listen(8882, '127.0.0.1')

index.html

<!DOCTYPE html>
<html>
<body>

<div> hello world </div>

</body>
</html>

output:

hello world

Storm answered 17/4, 2017 at 7:21 Comment(0)
T
9

If you don't have to use the views directory, Simply move html files to the public directory below.

and then, add this line into app.configure instead of '/views'.

server.use(express.static(__dirname + '/public'));
Topcoat answered 4/10, 2012 at 16:14 Comment(0)
O
9

If you want to render HTML file you can use sendFile() method without using any template engine

const express =  require("express")
const path = require("path")
const app = express()
app.get("/",(req,res)=>{
    res.sendFile(**path.join(__dirname, 'htmlfiles\\index.html')**)
})
app.listen(8000,()=>{
    console.log("server is running at Port 8000");
})

I have an HTML file inside htmlfile so I used path module to render index.html path is default module in node. if your file is present in root folder just used

res.sendFile(path.join(__dirname, 'htmlfiles\\index.html'))

inside app.get() it will work

Original answered 18/12, 2020 at 14:0 Comment(0)
V
8

For my project I have created this structure:

index.js
css/
    reset.css
html/
    index.html

This code serves index.html for / requests, and reset.css for /css/reset.css requests. Simple enough, and the best part is that it automatically adds cache headers.

var express = require('express'),
    server = express();

server.configure(function () {
    server.use('/css', express.static(__dirname + '/css'));
    server.use(express.static(__dirname + '/html'));
});

server.listen(1337);
Vitebsk answered 30/5, 2012 at 20:55 Comment(1)
server.configure is deprecated, so directly use server.useVeer
G
7

To render Html page in node try the following,

app.set('views', __dirname + '/views');

app.engine('html', require('ejs').renderFile);
  • You need to install ejs module through npm like:

       npm install ejs --save
    
Gingrich answered 5/7, 2016 at 6:7 Comment(1)
This solution worked for me. Although I tried static option too. Can you explain the mechanism behind it. Thanks!Parochial
A
4

With Express 4.0.0, the only thing you have to do is comment out 2 lines in app.js:

/* app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade'); */ //or whatever the templating engine is.

And then drop your static file into the /public directory. Example: /public/index.html

Atonic answered 17/4, 2014 at 17:44 Comment(0)
K
4

Express 4.x

Send .html files, no template engine...

//...
// Node modules
const path = require('path')
//...
// Set path to views directory
app.set('views', path.join(__dirname, 'views'))
/**
 * App routes
 */
app.get('/', (req, res) => {
  res.sendFile('index.html', { root: app.get('views') })
})
//...
.
├── node_modules
│
├── views
│   ├──index.html
└── app.js
Keratogenous answered 25/6, 2020 at 17:17 Comment(1)
I had to use var app = express(); app.set('views', path.join(__dirname, '../views'));. Without the "../folderName" it was looking in the routes folder.Zworykin
F
3

I added below 2 line and it work for me

    app.set('view engine', 'html');
    app.engine('html', require('ejs').renderFile);
Foliaceous answered 15/10, 2014 at 12:40 Comment(3)
it gives me the following error "Error: Cannot find module 'ejs' at Function.Module._resolveFilename (module.js:338:15) at Function.Module._load (module.js:280:25) at Module.require (module.js:364:17) at require (module.js:380:17) "Jonme
@LygubOrg run npm install ejs --save in your working directory.Claudy
is it necessary to add a dependency only to serv a html file?Entrepreneur
V
3

Try res.sendFile() function in Express routes.

var express = require("express");
var app     = express();
var path    = require("path");


app.get('/',function(req,res){
  res.sendFile(path.join(__dirname+'/index.html'));
  //__dirname : It will resolve to your project folder.
});

app.get('/about',function(req,res){
  res.sendFile(path.join(__dirname+'/about.html'));
});

app.get('/sitemap',function(req,res){
  res.sendFile(path.join(__dirname+'/sitemap.html'));
});

app.listen(3000);

console.log("Running at Port 3000");

Read here : http://codeforgeek.com/2015/01/render-html-file-expressjs/

Valenti answered 20/1, 2015 at 4:24 Comment(0)
I
3

I didn't want to depend on ejs for simply delivering an HTML file, so I simply wrote the tiny renderer myself:

const Promise = require( "bluebird" );
const fs      = Promise.promisifyAll( require( "fs" ) );

app.set( "view engine", "html" );
app.engine( ".html", ( filename, request, done ) => {
    fs.readFileAsync( filename, "utf-8" )
        .then( html => done( null, html ) )
        .catch( done );
} );
Isolationism answered 3/6, 2016 at 14:42 Comment(0)
P
2

1) The best way is to set static folder. In your main file (app.js | server.js | ???):

app.use(express.static(path.join(__dirname, 'public')));

public/css/form.html
public/css/style.css

Then you got static file from "public" folder:

http://YOUR_DOMAIN/form.html
http://YOUR_DOMAIN/css/style.css

2)

You can create your file cache.
Use method fs.readFileSync

var cache = {};
cache["index.html"] = fs.readFileSync( __dirname + '/public/form.html');

app.get('/', function(req, res){    
    res.setHeader('Content-Type', 'text/html');
    res.send( cache["index.html"] );                                
};);
Prefix answered 27/2, 2014 at 9:45 Comment(1)
not bad! here is a full file demo! https://gist.github.com/xgqfrms-GitHub/7697d5975bdffe8d474ac19ef906e906Pes
W
2

I was trying to set up an angular app with an express RESTful API and landed on this page multiple times though it wasn't helpful. Here's what I found that worked:

app.configure(function() {
    app.use(express.static(__dirname + '/public'));         // set the static files location
    app.use(express.logger('dev'));                         // log every request to the console
    app.use(express.bodyParser());                          // pull information from html in POST
    app.use(express.methodOverride());                      // simulate DELETE and PUT
    app.use(express.favicon(__dirname + '/public/img/favicon.ico'));
});

Then in the callback for your api routes look like: res.jsonp(users);

Your client side framework can handle routing. Express is for serving the API.

My home route looks like this:

app.get('/*', function(req, res) {
    res.sendfile('./public/index.html'); // load the single view file (angular will handle the page changes on the front-end)
});
Waterlogged answered 5/3, 2014 at 22:37 Comment(0)
A
2
res.sendFile(__dirname + '/public/login.html');
Abstinence answered 27/2, 2015 at 10:7 Comment(0)
K
2

Add the following Lines to your code

  1. Replace "jade" with "ejs" & "X.Y.Z"(version) with "*" in package.json file

      "dependencies": {
       "ejs": "*"
      }
    
  2. Then in your app.js File Add following Code :

    app.engine('html', require('ejs').renderFile);

    app.set('view engine', 'html');

  3. And Remember Keep All .HTML files in views Folder

Cheers :)

Kenyon answered 6/2, 2016 at 17:39 Comment(0)
P
2

Here is a full file demo of express server!

https://gist.github.com/xgqfrms-GitHub/7697d5975bdffe8d474ac19ef906e906

hope it will help for you!

// simple express server for HTML pages!
// ES6 style

const express = require('express');
const fs = require('fs');
const hostname = '127.0.0.1';
const port = 3000;
const app = express();

let cache = [];// Array is OK!
cache[0] = fs.readFileSync( __dirname + '/index.html');
cache[1] = fs.readFileSync( __dirname + '/views/testview.html');

app.get('/', (req, res) => {
    res.setHeader('Content-Type', 'text/html');
    res.send( cache[0] );
});

app.get('/test', (req, res) => {
    res.setHeader('Content-Type', 'text/html');
    res.send( cache[1] );
});

app.listen(port, () => {
    console.log(`
        Server is running at http://${hostname}:${port}/ 
        Server hostname ${hostname} is listening on port ${port}!
    `);
});
Pes answered 28/11, 2016 at 12:8 Comment(0)
U
2

index.js

var express = require('express');
var app = express();
app.use(express.static(__dirname + '/public'));


app.get('/', function(req, res) {
    res.render('index.html');
});


app.listen(3400, () => {
    console.log('Server is running at port 3400');
})

Put your index.html file in public folder

<!DOCTYPE html>
<html>
<head>
    <title>Render index html file</title>
</head>
<body>
    <h1> I am from public/index.html </h1>
</body>
</html>

Now run the following code in your terminal

node index.js

Untruth answered 25/9, 2019 at 14:23 Comment(0)
D
2

It is very sad that it is about 2020 still express hasn't added a way to render an HTML page without using sendFile method of the response object. Using sendFile is not a problem but passing argument to it in the form of path.join(__dirname, 'relative/path/to/file') doesn't feel right. Why should a user join __dirname to the file path? It should be done by default. Why can't the root of the server be by defalut the project directory? Also, installing a templating dependency just to render a static HTML file is again not correct. I don't know the correct way to tackle the issue, but if I had to serve a static HTML, then I would do something like:

const PORT = 8154;

const express = require('express');
const app = express();

app.use(express.static('views'));

app.listen(PORT, () => {
    console.log(`Server is listening at port http://localhost:${PORT}`);
});

The above example assumes that the project structure has a views directory and the static HTML files are inside it. For example, let's say, the views directory has two HTML files named index.html and about.html, then to access them, we can visit: localhost:8153/index.html or just localhost:8153/ to load the index.html page and localhost:8153/about.html to load the about.html. We can use a similar approach to serve a react/angular app by storing the artifacts in the views directory or just using the default dist/<project-name> directory and configure it in the server js as follows:

app.use(express.static('dist/<project-name>'));
Doronicum answered 31/12, 2019 at 9:45 Comment(0)
L
1

For plain html you don't require any npm package or middleware

just use this:

app.get('/', function(req, res) {
    res.sendFile('index.html');
});
Lutetium answered 2/8, 2019 at 10:50 Comment(0)
C
0

I wanted to allow requests to "/" to be handled by an Express route where previously they had been handled by the statics middleware. This would allow me to render the regular version of index.html or a version that loaded concatenated + minified JS and CSS, depending on application settings. Inspired by Andrew Homeyer's answer, I decided to drag my HTML files - unmodified - into a views folder, configure Express like so

   app.engine('html', swig.renderFile);
   app.set('view engine', 'html');
   app.set('views', __dirname + '/views');  

And created a route handler like so

 app.route('/')
        .get(function(req, res){
            if(config.useConcatendatedFiles){
                return res.render('index-dist');
            }
            res.render('index');       
        });

This worked out pretty well.

Calorific answered 11/9, 2014 at 6:3 Comment(0)
S
0

In server.js, please include

var express = require("express");
var app     = express();
var path    = require("path");


app.get('/',function(req,res){
  res.sendFile(path.join(__dirname+'/index.html'));
  //__dirname : It will resolve to your project folder.
});
Seringapatam answered 27/10, 2015 at 5:22 Comment(0)
S
0

If you are trying to serve an HTML file which ALREADY has all it's content inside it, then it does not need to be 'rendered', it just needs to be 'served'. Rendering is when you have the server update or inject content before the page is sent to the browser, and it requires additional dependencies like ejs, as the other answers show.

If you simply want to direct the browser to a file based on their request, you should use res.sendFile() like this:

const express = require('express');
const app = express();
var port = process.env.PORT || 3000; //Whichever port you want to run on
app.use(express.static('./folder_with_html')); //This ensures local references to cs and js files work

app.get('/', (req, res) => {
  res.sendFile(__dirname + '/folder_with_html/index.html');
});

app.listen(port, () => console.log("lifted app; listening on port " + port));

This way you don't need additional dependencies besides express. If you just want to have the server send your already created html files, the above is a very lightweight way to do so.

Sedulity answered 28/4, 2019 at 16:41 Comment(0)
D
0
  • Nowadays we use modules in NodeJS.

  • Import packages

    import express from "express";
    import ejs from "ejs";
    export var app = express();
  • Set up the view engine to use the ejs template engine to render files with HTML extension.
    app.engine("html", ejs.renderFile);
    app.set("view engine", "html");
  • Render the HTML file:
    app.get("/", (req, res) => {
      res.render("index.html");
    });
Derogatory answered 26/3 at 0:28 Comment(0)
D
0

please use this for simple html page rendering

const path = require('path');
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname, './index.html'));})
Devora answered 12/4 at 6:39 Comment(0)
A
-1

I usually use this

app.configure(function() {
    app.use(express.static(__dirname + '/web'));
});

Just be careful because that'll share anything in the /web directory.

I hope it helps

Arbitrator answered 25/11, 2012 at 4:15 Comment(0)
A
-2

if you are using express framework to node.js

install npm ejs

then add config file

app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router)

;

render the page from exports module form.js have the html file in the views dir with extension of ejs file name as form.html.ejs

then create the form.js

res.render('form.html.ejs');

Alius answered 28/8, 2013 at 11:38 Comment(1)
What is this mess?Doronicum

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