Input Validation & Sanitization in Express.js | Joi & express-validator Tutorial
Validating and sanitizing user input is one of the most important steps in building secure, bug-free Express.js applications. In this video, you’ll learn how to validate and sanitize data using express-validator and Joi — two of the most popular Node.js libraries.
You’ll discover:
✅ The difference between validation & sanitization
✅ How to use express-validator to validate and clean form/API data
✅ How to create Joi schemas for advanced validation
✅ Preventing XSS & SQL injection
✅ Best practices for form, query, route, and API payload validation
Whether you’re building a REST API or form-based app, this guide will help keep your Node.js backend safe & reliable.
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