This code is creating a basic web server using the...
September 4, 2025 at 07:37 AM
This code is creating a basic web server using the Express framework. Here's what it does in detail:
1. Imports Required Modules
const express = require("express");
: Imports the Express framework for building web applications.const path = require("path");
: Imports thepath
module to handle directory and file paths.
2. Initializes an Express Application
const app = express();
: Creates an instance of the Express application.const port = 8080;
: Defines the port the server will listen on.
3. Middleware Setup
app.use(express.urlencoded({ extended: true }));
: Uses a built-in middleware to parse incoming URL-encoded data (useful for handling form submissions).
4. Sets Up the View Engine
app.set("view engine", "ejs");
: Specifies EJS (Embedded JavaScript) as the templating engine for rendering dynamic HTML pages.app.set("view", path.join(__dirname, "views"));
: Sets the location of the directory (views
) where EJS template files will be stored.
5. Static Files
app.set(express.static(path.join(__dirname, "public")));
: (This line is incorrect and won't work as intended becauseapp.set
should set a configuration key, but it's attempting to use.static()
which is middleware. It should probably beapp.use(express.static(path.join(__dirname, "public")));
.)
Assuming this was intended, it would serve static files (e.g., CSS, JavaScript, images) from the public
directory.
6. Defines a Route
app.get("/", (req, res) => { res.send("serving working well!"); });
: Defines a route for the root URL (/
). When a GET request is made to/
, the server responds with the plain text"serving working well!"
.
7. Starts the Server
app.listen(port, () => { console.log("listening to port : 8080"); });
: Starts the server on port8080
and logs a message to the console when the server is running.
Overall Purpose
This code creates a simple Express web server that:
- Listens on port 8080.
- Serves static files from a
public
directory (if the use ofexpress.static
is corrected). - Renders templates using the
EJS
engine (in theviews
directory). - Responds with a simple message on the root path
/
.
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