Url validation

from urllib.parse import urlparse

def is_valid_url(url):
    parsed_url = urlparse(url)
    return bool(parsed_url.scheme and parsed_url.netloc)

# Example usage
url = "https://www.paywithpi.com/path?query=value"
print("Valid URL!" if is_valid_url(url) else "Invalid URL!")

npm install validator

const validator = require('validator');

function isValidUrl(url) {
    return validator.isURL(url);
}

// Example usage
const url = "https://www.paywithpi.com/path?query=value";
console.log(isValidUrl(url) ? "Valid URL!" : "Invalid URL!");

<input type="text" id="urlInput" placeholder="Enter URL">
<button onclick="validateUrl()">Validate URL</button>
<p id="result"></p>

<script>
    function validateUrl() {
        const url = document.getElementById('urlInput').value;
        fetch('/validate-url', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({ url })
        })
        .then(response => response.json())
        .then(data => {
            document.getElementById('result').innerText = data.isValid ? "Valid URL!" : "Invalid URL!";
        });
    }
</script>

const express = require('express');
const bodyParser = require('body-parser');
const validator = require('validator');

const app = express();
app.use(bodyParser.json());

app.post('/validate-url', (req, res) => {
    const { url } = req.body;
    const isValid = validator.isURL(url);
    res.json({ isValid });
});

app.listen(3000, () => {
    console.log('Server is running on port 3000');
});