How to Validate API Requests in Node.js Using Joi
Learn how to validate API requests in Node.js using Joi — the most popular and powerful validation library for Express.js. In this step-by-step tutorial, you’ll see how to create schemas, apply validation middleware, and protect your APIs from bad input.
✅ Topics Covered:
What is Joi?
How to install and use Joi in Node.js
Creating validation schemas
Adding validation to Express.js routes
Handling validation errors properly
📦 Tools & Tech Stack:
Node.js
Express.js
Joi (npm package)
🔧 Code examples included! Perfect for beginners and developers looking to write secure and clean APIs.
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