How do I handle query parameters in Express.js?

How do I handle query parameters in Express.js?

In Express.js, you can access query parameters using the req.query object. For example, if your URL is /search?term=node, you can get the term with req.query.term.

Can you show me a code example?

Sure! Here's a simple example:

const express = require('express');
const app = express();

app.get('/search', (req, res) => {
    const term = req.query.term;
    res.send(`You searched for: ${term}`);
});

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

What if I have multiple query parameters?

You can access multiple query parameters in the same way. For example, if your URL is /search?term=node&sort=asc, you can get both with req.query.term and req.query.sort.

Is there a limit to the number of query parameters?

Technically, there is no strict limit on the number of query parameters, but browsers and servers may impose their own limits on URL length.