joi
A powerful schema description language and data validator for JavaScript.
What is joi?
Joi is a schema description language and data validator for JavaScript that allows developers to define and enforce data structures and constraints. It solves the problem of ensuring data integrity by validating and sanitizing input in applications, from API requests to configuration objects.
JavaScript developers, particularly those working on Node.js backends, APIs, or any application requiring robust input validation and data sanitization.
Developers choose Joi for its expressive schema definition, comprehensive built-in validation rules, and flexibility in handling complex validation scenarios with clear error messaging and data transformation capabilities.
Overview
The most powerful data validation library for JS
Use Cases
Best For
- Validating API request payloads and query parameters
- Sanitizing and validating configuration files and environment variables
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