Node js cannot get ошибка - Не ошибается лишь тот, кто ничего не делает!

This is what i have, the filename «default.htm» actually exists and loads when doing a readFile with NodeJS.

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

app.use(express.static(__dirname + '/default.htm'));

app.listen(process.env.PORT);

The Error (in browser):

Cannot GET /

asked Nov 12, 2012 at 7:22

You typically want to render templates like this:

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

However you can also deliver static content — to do so use:

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

Now everything in the /public directory of your project will be delivered as static content at the root of your site e.g. if you place default.htm in the public folder if will be available by visiting /default.htm

Take a look through the express API and Connect Static middleware docs for more info.

Ilija

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answered Nov 12, 2012 at 7:31

SdedelbrockSdedelbrock

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I’ve noticed that I forgot the «slash» in the beginning of the Route as below
and I was getting same error :

Wrong :

app.get('api/courses',  (req, res) => { ... }
)

Correct :

  app.get('/api/courses',  (req, res) => { ... }
    )

answered Jun 6, 2019 at 21:15

You need to define a root route.

app.get('/', function(req, res) {
  // do something here.
});

Oh and you cannot specify a file within the express.static. It needs to be a directory. The app.get('/'.... will be responsible to render that file accordingly. You can use express’ render method, but your going to have to add some configuration options that will tell express where your views are, traditionally within the app/views/ folder.

answered Nov 12, 2012 at 7:28

DanielDaniel

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I had the same problem, so here’s what I came up with. This is what my folder structure looked like when I ran node server.js

app/
  index.html
  server.js

After printing out the __dirname path, I realized that the __dirname path was where my server was running (app/).

So, the answer to your question is this:

If your server.js file is in the same folder as the files you are trying to render, then

app.use(express.static(__dirname + '/default.htm'));

should actually be

app.use(express.static(__dirname));

The only time you would want to use the original syntax that you had would be if you had a folder tree like so:

app/
  index.html
server.js

where index.html is in the app/ directory, whereas server.js is in the root directory (i.e. the same level as the app/ directory).

Overall, your code could look like:

var express = require('express');

var app = express();

app.use(express.static(__dirname));

app.listen(process.env.PORT);

answered May 21, 2016 at 19:52

CopyLeftCopyLeft

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I found myself on this page as I was also receiving the Cannot GET/ message. My circumstances differed as I was using express.static() to target a folder, as has been offered in previous answers, and not a file as the OP was.

What I discovered after some digging through Express’ docs is that express.static() defines its index file as index.html, whereas my file was named index.htm.

To tie this to the OP’s question, there are two options:

1: Use the code suggested in other answers

app.use(express.static(__dirname));

and then rename default.htm file to index.html

2: Add the index property when calling express.static() to direct it to the desired index file:

app.use(express.static(__dirname, { index: 'default.htm' }));

answered Sep 24, 2016 at 14:57

PTDPTD

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Where is your get method for «/»?

Also you cant serve static html directly in Express.First you need to configure it.

app.configure(function(){
  app.set('port', process.env.PORT || 3000);  
  app.set("view options", {layout: false});  //This one does the trick for rendering static html
  app.engine('html', require('ejs').renderFile); 
  app.use(app.router);

});

Now add your get method.

app.get('/', function(req, res) {
  res.render('default.htm');
});

answered Nov 12, 2012 at 7:32

Serdar DogruyolSerdar Dogruyol

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You need to add a return to the index.html file.

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

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

answered Nov 10, 2020 at 11:30

xplorer1xplorer1

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Provide full path for example I am running my app on https://ugoods.in/nodeapp

app.get('/nodeapp', (req, res) => {
  res.send('Hello World!')
})

If you will run directly on http://ugoods.in or http://localhost

app.get('/', (req, res) => {
  res.send('Hello World!')
})

answered Jul 7, 2021 at 6:08

Md RehanMd Rehan

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I had the same issue. Solved it by small changes like below.

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

Got help from here (ExpressJS Documentation — Serving static files).

answered Mar 15, 2017 at 14:49

In my case, the static content was already being served:

app.use('/*', express.static(path.join(__dirname, '../pub/index.html')));

…and everything in the app seemed to rely on that in some way. (path dep is require('path'))

So, a) yes, it can be a file; and b) you can make a redirect!

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

Now anyone hitting / gets /index.html which is served statically from ../pub/index.html.

Hope this helps someone else.

answered Mar 6, 2018 at 2:46

Chaim EliyahChaim Eliyah

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I was facing the same problem as mentioned in the question. The following steps solved my problem.

I upgraded the nodejs package link with following steps

Clear NPM’s cache:
```
npm cache clean -f
```
Install a little helper called ‘n’
```
npm install -g n  
```

Then I went to node.js website, downloaded the latest node js package, installed it, and my problem was solved.

user812786

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answered Jan 22, 2016 at 14:01

var path = require('path');

Change app.use(express.static(__dirname + '/default.htm')); to
app.use(express.static(path.join(__dirname + '/default.htm')));.

Also, make sure you point it to the right path of you default.html.

JJJ

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answered Sep 26, 2017 at 11:00

You need to restart the process if app.get not working. Press ctl+c and then restart node app.

answered Mar 1, 2019 at 10:22

Ashwani PanwarAshwani Panwar

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«Cannot » happens when a request is sent to non-defined target.
For example:

app.get('/',()=>{});

This would handle requests sent to localhost/ but not localhost/path.

Please, make soure there is a routing defined for the URL you are trying to access.
Actual response you might get:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot GET /path</pre>
</body>
</html>

answered Mar 11, 2022 at 7:09

I was also getting the same error as «Cannot GET /» in my MERN application in the network tab. I added these lines of code in my index.js(in backend) file after referring to this article https://coursework.vschool.io/deploying-mern-app-to-heroku/ :

Right before my app.listen():

app.get("*", (req, res) => {
    res.sendFile(path.join(__dirname, "client", "build", "index.html"));
});

and also changed a line in

if(process.env.NODE_ENV === 'production')

from this:

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

to this:

app.use(express.static(path.join(__dirname, "client", "build")))

So, check this too, if making these changes work for you.

answered Mar 26, 2022 at 11:31

I had this exact issue, my error source might differ to what your source of error was though.

However, as for me, it was because I was running the app instance on CPanel inside subfolder as:

app.get("/", (request, response) => {
       response.status(200).send("Hello there");
})

Results:

Can not GET /

So, I realized I was setting wrong parameter, and what I did was:

app.get("/foldername/", (request, response) => {
       response.status(200).send("Hello there, it works!");
 })

Results:

Hello there, it works!

answered May 11, 2021 at 13:27

Amin MatolaAmin Matola

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Another solution is to check whether your .static() parameter refers to the correct folder of your other website files (.html, .css, ..).
this folder should be in the same directory of the server.js file.
don’t know why though, I tried to put it in a different directory and pass ./website for example but it didn’t work. :/

answered Apr 18, 2021 at 16:20

Instead of using «app.use», try to use «app.get». It works on my machine.

answered May 3, 2022 at 2:59

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To fix the ‘Error: Cannot GET /’ error message with Node.js and Express, we need to add the route handler for the GET / route.

For instance, we write

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

to call app.get with '/' and the route handler to handle GET requests to the / route.

In the route handler for the GET / route, we call res.render to render the index.html template on the screen.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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Problem Statement: On running a Node.js application URL on the web browser it throws the following error:

Cannot GET/

Example: Let’s create a simple Node.js application that throws the same error.

Step 1: Initializes NPM: Create and Locate your project folder in the terminal & type the command

npm init -y

It initializes our node application & makes a package.json file.

Step 2: Install Dependencies: Locate your root project directory into the terminal and type the command

npm install express

To install Express as dependencies inside your project

Step 3: Create Server File: Create an ‘app.js’ file, inside this file require an express Module, and create a constant ‘app’ for creating an instance of the express module.

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

Step 4: Create a Message Route: Create a get route using app.get() method which sends “hello” as a text to the web browser.

app.get("/messages", (req, res) => {
   res.send("Hello");
});

Step 5: Set up a port to run our server: We will do it by using the express, app.listen() method.

app.listen(3000, () => {
  console.log("listening on http://localhost:3000");
})

Complete Code:

Javascript

const express = require('express')

const app = express()

app.get("/messages", (req, res) => {

res.send("Hello");

});

app.listen(3000, () => {

})

Output:

Reason: Since in the server file, we create a get route for ‘/messages’ URL but inside the browser, we try to get the ‘/’ URL which is not specified in our server file that’s why it throws the error.

Solution Approach: We have to set up a universal route, and when any route or URL which are not specified inside the server file will call then the universal URL sends a “404 URL NOT FOUND” message.

app.get("/:universalURL", (req, res) => {
   res.send("404 URL NOT FOUND");
});

Complete Code:

Javascript

const express = require('express')

const app = express()

app.get("/messages", (req, res) => {

res.send("Hello");

});

app.get("/:universalURL", (req, res) => {

res.send("404 URL NOT FOUND");

});

app.listen(3000, () => {

})

Output:

Last Updated :
04 Aug, 2022

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Недавно я начал пытаться войти в Node.js/React и использую этот учебник https://auth0.com/blog/build-a-chat-app-with-react/.

Однако, несмотря на то, что я выполнил эти шаги, я, кажется, сталкиваюсь с ошибкой. Моя страница отображается как «Невозможно GET/» после начала запуска пряжи. Я нашел ответы здесь NodeJS w/Express Error: не может GET/ и здесь «Невозможно GET/» с Connect на Node.js

Однако ни один из них не имел для меня смысла, поскольку мой код, похоже, немного отличается от их. Я понимаю, что страница не знает, где искать мой запрос GET, и, следовательно, какая информация тянуть, но я не уверен, как это исправить.

Код, о котором идет речь, запрос GET в конце. Благодарю.

// server.js
const express = require('express');
const path = require('path');
const bodyParser = require("body-parser");
const app = express();
const Pusher = require('pusher');


//initialize Pusher with your appId, key and secret
const pusher = new Pusher({
    appId: 'APP_ID',
    key: 'APP_KEY',
    secret: 'SECRET',
    cluster: 'YOUR CLUSTER',
    encrypted: true
});

// Body parser middleware
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

// API route which the chat messages will be sent to
app.post('/message/send', (req, res) => {
  // 'private' is prefixed to indicate that this is a private channel
    pusher.trigger( 'private-reactchat', 'messages', {
        message: req.body.message,
        username: req.body.username
    });
    res.sendStatus(200);
});

// API route used by Pusher as a way of authenticating users
app.post('/pusher/auth', (req, res) => {
    const socketId = req.body.socket_id;
    const channel = req.body.channel_name;
    const auth = pusher.authenticate(socketId, channel);
    res.send(auth);
});

// Set port to be used by Node.js
app.set('port', (process.env.PORT || 5000));

app.listen(app.get('port'), function(req, res) {
    console.log('Node app is running on port', app.get('port'));
});

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