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Node.js Express return 404 if file not found in only Assets folder

I am trying to create an SPA using Express with following code
var express = require('express');
const path = require('path');
var app = express();
app.use('/assets', express.static(path.resolve(__dirname, 'www', 'assets')));
app.get('/*', (req, res)=>{
res.sendFile(path.resolve('www', 'index.html'));
});
var server = app.listen(3000, function(){});
This code works good but the problem is this responds with my index.html even when a file is not found in my assets folder. I want it to respond with error of 404 Not Found if some url is not present in assets folder
I tried using this code after line app.use('/assets'...
app.use(function (req, res, next) {
res.status(404).send("404 Not Found");
});
but not working

Issue is with
app.get('/*', (req, res)=>{
res.sendFile(path.resolve('www', 'index.html'));
});
Instead, use
app.get('/', (req, res)=>{
res.sendFile(path.resolve('www', 'index.html'));
});

So, I finally got the way to solve it
app.get('/*', (req, res)=>{
if(req.path.includes('/assets'))
{
fs.access(req.path, (err) => {
if(err)
{
res.status(404).send("Sorry can't find that!");
return;
}
});
}
res.sendFile(path.resolve('www', 'index.html'));
});
In the code, I have told to check if the request is about a file located in assets folder then check if the file exists, if does not exists then send 404 error with message and just return, otherwise do nothing but return the file.

Different Path for Serving Static HTML files in Express

Just a quick question. Say I have 2 different static HTML files that I want to serve in Express, index.html and contact.html. I've been fiddling around and I currently use this barebone Express code to serve them:
const express = require('express');
const path = require('path');
const app = express();
app.use(express.static('public'))
app.get('/', function (req, res) {
res.sendFile('/index.html');
});
app.get('/contact', function (req, res) {
res.sendFile(__dirname + '/public/contact.html');
});
app.listen(3000, function () {
console.log('runnning on port 3000')
});
Question is, I tried to serve contact.html using
app.get('/contact', function (req, res) {
res.sendFile(__dirname + '/contact.html');
});
but it always resort to the root directory instead of the public directory. OTOH, I can server index.html just fine without having to explicitly adding /public in the response.
Can anybody point me what's the cause for that?
Thanks.

For the given file structure:
yourapp
|-- contact.html
|-- index.html
`-- server.js
The following code would work just fine:
app.get('/', function (req, res) {
res.sendFile(__dirname + '/index.html');
});
app.get('/contact', function (req, res) {
res.sendFile(__dirname + '/contact.html');
});
Assuming both index.html and contact.html have read access.
Remember, sendFile requires an absolute path and __dirname refers to your app directory. Make sure you give references according to your file location.

Scotch-io/node-todo app

How is the index.html (frontend Angular) getting called exactly?
In the tutorial, it was said that by having one of the following routes in route.js, frontend is getting called
app.get('*', function(req, res) {
res.sendfile('./public/index.html');
});
----------or-------------------
app.get('*', function(req, res) {
res.sendfile('__dirname + '/public/index.html');
});
But even after removing that route, index.html is getting opened (or) If I rename index.html as index1.html at route and html file it is showing error.

Have you created a file index1.html in public folder? If yes, Use
res.sendfile('public/index1.html');
OR
var path = require('path');
res.sendFile(path.join(__dirname, '../public', 'index1.html'));
to render index1.html.
Note : sendfile is deprecated.

'Uncaught SyntaxError: Unexpected token <' in Node.js

I am getting the below screen-shot error when I try to serve my client-side code. When I am trying to run node server/server.js:
The below is my server.js code...
app.use(express.static(path.join(__dirname, "public")));
app.use(logger('dev'));
app.use(bodyParser.json({limit: '50mb'}));
app.all('/*', function(req, res, next){
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE, OPTIONS");
res.header("Access-Control-Allow-Headers", "Content-type,Accept,X-Access-Token,X-Key");
if(req.method === 'OPTIONS'){
res.status(200).end();
} else {
next();
}
});
app.all("/api/v1/*", [require('./middlewares/validateRequest')]);
app.use("/", require("./routes"));
app.use(function(req, res, next){
var err = new Error("Not found");
err.status = 404;
next(err);
});
Inside my routes/index.js, I have the following for get request.
router.get('*', function(req, res) {
res.sendfile('./public/index.html');
});

Usually when the browser requests a JavaScript file, the server sends an HTML file. This is due to rules like app.get('*'.... So we need to tell the server to send the static files first and then declare the rules, like shown below:
// Declare static folder to be served. It contains the JavaScript code, images, CSS, etc.
app.use(express.static('build'));
// Serve the index.html for all the other requests so that the
// router in the JavaScript application can render the necessary components
app.get('*', function(req, res){
res.sendFile(path.join(__dirname + '/build/index.html'));
//__dirname : It will resolve to your project folder.
});

My folder structure
node(folder)
server.js
-client(f)
-index.html
-views(f)
-js(f)
-ctrl(f)
-service(f)
-app.js
-state.js
and
app.use(express.static('client'));
app.get('/index.html', function (req, res) {
res.sendfile(_dirname + '/index.html');
});
Call this from the browser: http://127.0.0.1:1956/index.html
var server = app.listen(1956, function (req, res) {
var host = server.address().address
var port = server.address().port
console.log("app listening at", host, port)
});
It's working fine for me.

I think this may be caused by your /public/index.html file.
When you include the JavaScript files in the index.html file, there's some problem with the "src" property. Thus it will return a "not found" HTML file instead of the actual JavaScript file.

I found the solution. The Node.js application tries to compile the JavaScript files inside the public folder, that makes a mistake; you defined the public folder like this:
app.use(express.static(path.join(__dirname, 'public')));
Try to define it using a virtual directory by adding a specific virtual folder name like this:
app.use('/static', express.static(path.join(__dirname, 'public')));
This should be work;

I guess part of the problem is in your router
In your routes/index.js change the get request to
router.get('/', function(req, res) {
res.sendfile('./public/index.html');
});
Also are you pipe-lining your assets using gulp or something similar? If not then how are you serving your assets?
I recommend you either serve your assets statically or use gulp

Error: ENOENT, stat '/app/public/views/index.html' in Heroku

I'm having an error serving static views on a Heroku app. Strangely, Heroku seems to append "app" to the front of my static file paths, and I'm not sure why. The path should be "public/views/index.html."
I recently tried this proposed solution from Stack, but it didn't seem to work: Node.js, can't open files. Error: ENOENT, stat './path/to/file'
The get requests from my server:
app.use(express.static(__dirname + '/public'));
app.get('/', function (req, res) {
res.sendFile(__dirname + '/public/views/index.html');
});
// profile page
app.get('/profile', function (req, res) {
// check for current (logged-in) user
req.currentUser(function (err, user) {
// show profile if logged-in user
if (user) {
res.sendFile(__dirname + '/public/views/profile.html');
// redirect if no user logged in
} else {
res.redirect('/');
}
});
});
Does anyone have any idea why Heroku would append "app" to my paths?
All the paths work correctly on a local server. Thanks!

The accepted. solution here of using PWD instead of __dirname is quite wrong. sendFile works on Heroku the same way it works anywhere else:
res.sendFile(path.join(__dirname, 'public', 'views', 'index.html'));

This is because the global __dirname variable inside Heroku is set to /app. Use process.env.PWD instead of __dirname.

Looks like this hasn't had an update in a while, but I ran into the same Heroku root directory confusion, but when I changed my code to use 'path' instead of __dirname, it worked.
path.join(__dirname, '..', 'views', 'email', `${template}.pug`),