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Build a Custom Rate Limiter in Node.js with Redis

Tutorial April 04, 2025

Want to extend this?

  • Implement sliding windows
  • Use Redis tokens (token bucket)
  • Add real-time dashboards or admin controls

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Building a Real-Time Chat Application with WebSockets in Node.js

Tutorial August 03, 2024
javascript css html 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Real-Time Chat</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <div class="chat-container">
        <ul id="messages"></ul>
        <form id="chat-form">
            <input id="message" autocomplete="off" placeholder="Type a message" />
            <button type="submit">Send</button>
        </form>
    </div>
    <script src="/socket.io/socket.io.js"></script>
    <script src="main.js"></script>
</body>
</html>
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.chat-container {
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

#messages {
    list-style-type: none;
    padding: 0;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 10px;
}

#messages li {
    padding: 8px;
    background-color: #f1f1f1;
    border-radius: 3px;
    margin-bottom: 5px;
}

#chat-form {
    display: flex;
}

#message {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
    margin-right: 5px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 3px;
    padding: 8px 12px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

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JWT Token Creation and Verification in Node.js using 'jsonwebtoken'

Code January 26, 2024
php 

// Import 'jsonwebtoken' module
const jwt = require('jsonwebtoken');

// Secret key for signing and verifying JWT tokens
const secret = 'mysecretkey';

// Create a JWT token with a payload and set expiration to 1 hour
const payload = { user_id: 123, username: 'john_doe' };
const token = jwt.sign(payload, secret, { expiresIn: '1h' });

// Verify a JWT token
try {
    const decoded = jwt.verify(token, secret);
    console.log(decoded);
} catch (error) {
    console.error('Token verification failed.');
}

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Simple HTTP Server in Node.js

Code January 26, 2024
javascript

No preview available for this content.

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Read and Write Files in Node.js using 'fs' module

Code January 26, 2024
javascript

No preview available for this content.

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