hello-world-http-server.md

create-project.md

mkdir first-app 
cd first-app 
npm init 
touch index.js 

index.md

Edit first-app/index.js

const http = require("http"); // Loads the http module
http
  .createServer((request, response) => {
    // 1. Tell the browser everything is OK (Status code 200), and the data is in plain text
    response.writeHead(200, {
      "Content-Type": "text/plain",
    });
    // 2. Write the announced text to the body of the page
    response.write("Hello, World!\n");
    // 3. Tell the server that all of the response headers and body have been sent
    response.end();
  })
  .listen(1337); // 4. Tells the server what port to be on

objective.md

In this example I will create an HTTP server listening on port 1337, which sends Hello, World! to the browser. Note that, instead of using port 1337.

run-code.md

node index.js 

Output

The created server can then be accessed with the URL http://localhost:1337 or http://127.0.0.1:1337 in the browser.