Localhost didn’t send any data. ERR_EMPTY_RESPONSE , Nodejs error

Question

I just started learning Node.js, but I'm stuck on a server issue. I tried all sorts of solutions but they didn't work (changed port, updated node.js, updated chrome, etc) but nothing has worked.

THE SERVER OPENS BUT LOCALHOST DOES NOT RESPOND.

Here is my index.js file

const app = express();
const port = 3000;

app.get("/", (req, res) => {
  console.log("test");
  res.send("Hello world");
});

app.listen(port, () => {
  console.log(`Server open port ${port}`);
});

Here is my package.json file

  "name": "last-server",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1"
  }
}

Terminal views

$ node app.js
Server open port 3000
test
test
test
test

**The server starts but didn't get a response by localhost in Chrome. The same code works in my friends device though. **

Alex · Accepted Answer · 2020-06-05 21:04:34Z

1

You are close. Did you import the module?

const express = require('express');
const port = 3003;
const app = express();

app.get("/", (req, res) => {
    console.log("test");
    res.send("Hello world");
});

app.listen(port, () => {
    console.log(`Server open port ${port}`);
});

edited Jun 5, 2020 at 21:04

answered Jun 5, 2020 at 20:18

Alex

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4 Comments

Alex Over a year ago

Note: I changed port as I use port 3000 frequently in other node apps

cyborg86pl Over a year ago

You shouldn't supplement your answer in comments. Please improve it by editing.

Akhil Rana Over a year ago

You are close?? What that means?? Yes I import the npm package Express both imported but still not get any response

Alex Over a year ago

@AkhilRana, I only added the first line to what you had, and thus, I say you were close. You installed the package, but that is not the same as importing the expess module for node to use. nodejs.org/docs/latest-v12.x/api/modules.html#modules_modules

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