What are the best practices for validation in Node.js?

What are the best practices for validation in Node.js?

Some best practices include using libraries like Joi or express-validator, validating data at the model level, and ensuring error handling.

Can you explain how to use Joi for validation?

Sure! Joi allows you to create schemas for your data. You define the structure and rules, and then validate your data against that schema.

What are some common validation rules I should implement?

Common rules include checking for required fields, string lengths, email formats, and numerical ranges.

How do I handle validation errors in my application?

You can catch validation errors and return meaningful messages to the user, often using middleware to centralize error handling.