I form the markup of the html page and write to the variable htmlToSend
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Hyperspotters</title>
</head>
<body style="margin: 0;
font-family: Arial, Helvetica, sans-serif;">
<header>
<div style="background: #3366CD; padding: 10px">
....
I need to return it to the client.
I promoted so
let htmlToSend = func.statusСheck(success, replacements);
return res.sendFile(htmlToSend);
and
let htmlToSend = func.statusСheck(success, replacements);
return res.render(htmlToSend);
How do I get my markup back to the client?
Normally, the middleware functions of Express.js expose the req and the res objects, with the res beeing the response object, which you use to send responses back to a client.
Example:
app.use(function (req, res, next) {
});
As stated by #jacob already, use the send function of the response object to send a reply to the client. You should, however, send the data as string (not buffer), because using a buffer leads to the data beeing interpreted as binary data, but clearly you are sending text. Also, using a buffer makes express set a Content-Type of 'application/octet-stream', which is also not what you want. Instead, set it to 'text/html'.
app.use("/", function (req, res, next) {
res.set('Content-Type', 'text/html');
res.send(htmlToSend);
});
See: http://expressjs.com/en/guide/routing.html
And also: https://expressjs.com/en/4x/api.html#res.send
It's not clear what exactly you are trying to achieve.
If you want to render HTML, try this code.
res.render('index', function(err, html) {
res.send(html);
});
where index is the view
If you want to respond with HTML content, try this code.
res.set('Content-Type', 'text/html');
res.send(new Buffer(htmlToSend));
don't forget to set Content-Type.
You can achieve this one of the following ways:
// serve your files as static
// 'public' -- your static files folder, set path accordingly
app.use('/static', express.static(__dirname + 'public'))
Assuming you've index.html in your public folder, you can access file like yourhost:port/static/index.html
Or use template engine through view engine (like ejs, 'pug', nunjucks etc) like:
// assuming you use ejs
const ejs = require('ejs'); // install ejs package
// your views folder (say folder named "views")
app.set('views', __dirname + 'views')
app.set('view engine', 'ejs')
// Assuming you've index.ejs in your views folder
// in your router
...
res.render('index');
More about templating engines and serving static here
Related
I have an app where I want to render static html with express.
I know about res.sendFile() but that is not what I want to use. I want to load my files using fs and send them using res.send()
I do something like this :
fileFoo = fs.readFileSync('./html/foo.html', 'utf-8');
fileBar = fs.readFileSync('./html/bar.html', 'utf-8');
app = express()
app.get('/foo', (req, res) => res.send(fileFoo));
app.get('/foo/bar', (req, res) => res.send(fileBar));
With 2 very simple html files
foo.html
<html>
<head>
<title>FOO</title>
</head>
<body>
<h1>FOO</h1>
bar
</body>
</html>
bar.html
<html>
<head>
<title>BAR</title>
</head>
<body>
<h1>BAR</h1>
</body>
</html>
When I go to /foo I got a HTML rendered.
If I click on bar I do not get a new HTML page rendered but I got a file "bar" with no extension downloaded. The file of course content the HTML page.
What is happening ?
UPDATE :
I am actually using a router, not direct app.
And I think this 'download' occure only when I try to reach
router.get('/', (res, req) => res.send(fileBar));
I'm making an app with NodeJS and Express, and when I start the server I get the following error:
Refused to apply style from 'http://localhost:3000/style.css' because its MIME type
('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
Here's my directory tree:
app:
|-node-modules
|-index.js
|-package.json
|-package-lock.json
|-views
|-index.html
|-public
|-stylesheets
|-style.css
Here's my index.js:
const express = require("express");
const app = express();
const path = require("path");
app.use("/static", express.static(__dirname + "/public"));
app.get("/", (req, res) => {
res.sendFile(path.join(__dirname + "/views/index.html"));
});
app.listen(process.env.port || 3000);
console.log("Server Is Active At Port " + (process.env.port || 3000));
And here's my index.html and style.css:
<!DOCTYPE html>
<html>
<head>
<title>Express App</title>
<meta charset="UTF-8">
<link rel="stylesheet" href="/public/stylesheets/style.css">
</head>
<body>
<h1>Test</h1>
</body>
</html>
body{
text-align: center;
}
Please note that I'm just testing to see if the site works, and this isn't the full code for the site.
You're not showing us the full picture - how are your styles being loaded? Presumably with a <link> tag you opted not to show us. Anyhow, the express.static middleware should take care of setting the correct mime type. You probably aren't providing the correct path to the stylesheet.
Your style tag in your html should look something like this:
<!-- note the "/static" part at the beginning of the url -->
<link rel="stylesheet" href="/static/stylesheets/style.css" />
Try writing
app.use('/public' , express.static(path.join(__dirname, 'public'))); instead of app.use("/static", express.static(__dirname + "/public"));
After that in your html while linking to the css file you can write
<link rel="stylesheet" href="/public/stylesheets/style.css">
Hope this solves the issue
I think this will work. Define path like this:
const staticfiledir = path.join(__dirname,'../public')
Setup for static directories to serve
app.use(express.static(staticfiledir))
My ejs engine set up is app.js is like below:
// this parse html file as ejs file
app.engine('.html', require('ejs').__express);
app.set('view engine', 'html');
app.set('views', __dirname + '/view');
My directory is like this:
view (folder)
home.html
head.html
app.js
Home.html is like this:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>home</title>
<% include head %>
</head>
<body>
</body>
</html>
and head.html is like this:
<link rel="stylesheet" type="text/css" href="css/main.css">
<script type="text/javascript" src="js/jquery-1.5.js"></script>
the problem is the file head.html will not be parsed if the extension was html. Error says it expect ejs file. So there is a problem with include function?
As Elie Gnrd is suggesting, you use .ejs files directly by changing the view engine configuration of Express.
If that isn't an option, and you want/need to keep using .html as an extension for your templates, you have to be explicit in the include:
<% include head.html %>
You can use .ejs files directly by using app.set('view engine', 'ejs'); and renaming index.html to index.ejs.
Here is an example:
http://robdodson.me/blog/2012/05/31/how-to-use-ejs-in-express/
arrr ;)
you did not mention what app - so I assume Express >=3
solution : forget the dot and __express in
app.engine('.html', require('ejs').__express);
It should read :
app.engine('html', require('ejs').renderFile);
change html file with ejs
-view
--home.ejs
--head.ejs
-app.js
set app view engine like
app.set('view engine', 'ejs');
make index.ejs for main file and include home.ejs and head.ejs in index.ejs
<%- include('head')%>;
<%- include('home')%>;
and render it app.js like
app.get('/', (req, res) => {
res.render('index');
});
cmiiw..
I too had this problem and modified this file of my app:
myapp/node_modules/ejs/lib/ejs.js
The function is:
function resolveInclude(name, filename) {
var path = join(dirname(filename), name);
var ext = extname(name);
if (!ext) path += '.ejs';
return path;
}
You can change the default extension or as in my case I changed the function to a more direct:
function resolveInclude(name, filename) {
return join(dirname(filename), name) + '.html';
}
They can modify the function as they wish.
I hope that is helpful.
Im trying out EJS as a view engine with Express. It seems that my layout.ejs is not used. I have two views index.ejs and layout.ejs both in my 'views' folder. It seems that index.js is rendered but layout.ejs is not. The layout.ejs file should be including a CSS file but when the page is rendered in the browser this is not there. Any test test text that I place in the layout.ejs file is not output with the response.
Am I missing an additional configuration step?
Thanks!
My server.js code:
var express = require('express');
var app = express();
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/public'));
app.get('/', function(req, res){
res.render('index.ejs', {title: 'EJS Engine'});
});
app.listen(8080);
In my layout.ejs I am linking to a single css file which resides in the public folder.
layout.ejs:
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<link rel="stylesheet" type="text/css" href="main.css">
</head>
<body>
<%- body %>
</body>
</html>
index.ejs
<div id="container">
index.html
</div>
Here's the module you need:
https://www.npmjs.org/package/express-ejs-layouts
Do the following:
npm install express-ejs-layouts // install the layout module from the command line
var express = require("express")
,path = require('path')
,fs = require('fs')
,expressLayouts=require("express-ejs-layouts") // add this requirement
, app = express();
app.use(express.bodyParser());
app.use(expressLayouts); // add this use()
app.use(express.static(__dirname));
Now the ejs engine should use your layout.
app.set('view options', { layout:'layout.ejs' });
Place layout.ejs into your views folder.
Alternately you can place layout.ejs into views/layouts folder and then use
app.set('view options', { layout:'layouts/layout.ejs' });
I have a similar issue. In my case I would rather use Jade but I have a requirement for a more "html" style template engine for a particular project. At first I considered express-partials or ejs-locals (as mentioned in a comment by Jonathan Lonowski) or even using html via the pipe or dot syntax within Jade templates (see here for more information about that option and this SO post). I am not able to introduce the additional dependencies for express-partials and ejs-locals into this project. These two projects do look good and might meet your needs.
If you do not want to use these projects, you can do something like the following:
views/layout-head.ejs
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>The title</title>
</head>
<body>
views/layout-foot.ejs
</body>
</html>
views/index.ejs (or any other page)
<% include layout-head %>
This is the index page - <%= title %>
<% include layout-foot %>
routes/index.js
exports.index = function(req, res){
res.render('index', { title: 'Express' });
}
This is not an optimal solution but it works. Most of my application will be a single page app and I have some other restrictions I have to work within so this works for my needs. This may not the best solution in many cases - especially if you have complex and/or changing layouts.
I'm trying to make a simple server with node, express and ejs for the template. I've gotten the server to point to the page, load it, and am even able to generate other bits of code with the include statement. However for some reason the style sheet will not load.
app.js
var express = require('express'),
app = express(),
http = require('http'),
server = http.createServer(app),
fs = require('fs');
var PORT = 8080;
app.set('view engine', 'ejs');
app.get('/', function(req, res){
res.render('board.ejs', {
title: "anything I want",
taco: "hello world",
something: "foo bar",
layout: false
});
});
app.listen(PORT);
console.log("Server working");
The ejs file is in a directory views/board.ejs
<html>
<head>
<title><%= title %></title>
<link rel='stylesheet' href='../styles/style.css' />
</head>
<body >
<h1> <%= taco %> </h1>
<p> <%= something %> </p>
</body>
</html>
and style.css is in a styles/style.css directory relative to app.js
p {
color:red;
}
I've tried every path that I can conceive of for the href of the link including relative to where my localhost points relative to app.js relative to board.ejs and even just style.css but none seem to work. Any suggestions are greatly appreciated.
Declare a static directory:
app.use(express.static(__dirname + '/public'));
<link rel='stylesheet' href='/style.css' />
in app.js:
you must first declare static directory
app.use("/styles",express.static(__dirname + "/styles"));
in ejs file :
<link rel='stylesheet' href='/styles/style.css' />
Recently I was working with this same thing and my CSS was not working. Finally, I get the trick. My static path was like below,
const app = express();
const publicDirectoryPath = path.join(__dirname, '../src/public');
const staticDirectory = express.static(publicDirectoryPath);
app.use(staticDirectory);
and my folder structure was like
The trick is that express access only defined static path, in my case CSS was outside of public so it was not working and suddenly I move CSS folder inside my public folder and that's it. Works beautifully.
Above example was for only one static path. For multiple static path you can use the code in the below
const app = express();
const publicDirectoryPath = path.join(__dirname, '../src/public');
const cssDirectoryPath = path.join(__dirname, '../src/css');
const staticDirectory = express.static(publicDirectoryPath);
const cssDirectory = express.static(cssDirectoryPath);
app.use(staticDirectory);
app.use('/css/',cssDirectory);
And my generic HTML file is
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Index</title>
<link rel="stylesheet" href="../css/styles.css">
</head>
<body>
<h1>this is index page</h1>
</body>
</html>
To set the entry point for your application dependancies like css, img etc add below line into your server.js (or which ever being used).
app.use(express.static(__dirname + '/'))
This tells to get css files from current directory where server.js is present. Accordingly you can define relative path of css in html file.
With Express 4, you can easily set this up by using the following within your app.js file.
app.use('/static', express.static(path.join(__dirname,'pub')));
Place this early in your file, after you created your require constants, and declared your express app.
Its declaring a static directory, with the help of the path object, allowing you to have a place where all of your front-end resources are available. It's also giving it a virtual directory name (/static) that can be used on the front of the site, instead of the physical name you see within your project (/pub).
In your template you can do something like this in your head
<link rel="stylesheet" href="/static/css_bundle.css"/>