Preventing SQL Injection

How to do that?

Well,

1. Always use prepared statements or parameterized queries when interacting with databases.
2. Avoid string concatenation for SQL queries at all costs.
3. Regularly audit your database queries for potential SQL injection vulnerabilities.

Example:

const query = 'SELECT * FROM users WHERE username = ?';
connection.query(query, [username], (err, results) => {
  // Handle results
});

Want to learn more? Check out the OWASP SQL Injection Prevention Cheat Sheet