How to test internet speed using Node.js ?

Last Updated : 17 Mar, 2022

The following approach covers how to do an internet speed test in NodeJs. We will use the speed-test node-package to achieve so. This package will help us for getting the current download and upload speed.

Use the following steps to install the module and do a speed test in node.js:

Step 1: Creating a directory for our project and making that our working directory.

$ mkdir speed-test-gfg
$ cd speed-test-gfg

Step 2: Use the npm init command to create a package.json file for our project.

$ npm init  // OR
$ npm init -y /* For auto add the required field */

Note: Keep pressing enter and enter “yes/no” accordingly at the terminus line.

Step 3: Installing the Express.js and speed-test module. Now in your speed-test-gfg(name of your folder) folder type the following command line:

$ npm install express
$ npm install speed-test --global

Note: Install both modules separately.

Step 4: Creating index.js and index.html files, our project structure will look like this.

Step 5: Creating a basic server. Write down the following code in the index.js file.

index.js

const express = require('express'); 
const app = express(); 
    
app.get('/' , (req , res)=>{ 
    res.send("GeeksforGeeks"); 
}); 
    
// Server setup 
app.listen(4000 , ()=>{ 
    console.log("server is running on port 4000"); 
});

Output: We will get the following output on the browser screen.

GeeksforGeeks

Step 6: Now let’s implement the functionality by which we get the current download and upload speed. Here we are using the exec function which is available in child-process to execute the command for the speed test.

index.html

<!DOCTYPE html> 
<html lang="en"> 
  <head> 
    <meta charset="UTF-8" /> 
    <meta http-equiv="X-UA-Compatible" 
          content="IE=edge" /> 
    <meta name="viewport"
          content="width=device-width, initial-scale=1.0" /> 
    <title>Speed Test</title> 
  </head> 
  <body> 
    <center> 
      <h1 style="color: green">GeeksforGeeks</h1> 
      <form method="POST" action="/test"> 
        <button>Check Internet Speed</button> 
      </form> 
    </center> 
  </body> 
</html>

Javascript

const express = require("express"); 
  
const app = express(); 
const { exec } = require("child_process"); 
  
// Home Route 
app.get("/", (req, res) => { 
  res.sendFile(__dirname + "/views/index.html"); 
}); 
  
// Speed Test 
app.post("/test", (req, res) => { 
  exec("speed-test --json", (err, stdout, stderr) => { 
    if (err || stderr) return res.send( 
      "Error while testing internet speed."); 
    const result = JSON.parse(stdout); 
    const response = `<center> 
                    <h2>Ping : ${result.ping}</h2> 
                    <h2>Download Speed : ${result.download}</h2> 
                    <h2>Upload Speed : ${result.upload}</h2> 
                    </center>`; 
    res.send(response); 
  }); 
}); 
  
// Server 
app.listen(4000, () => { 
  console.log("Server running on port - 4000"); 
}); 