celebrate node js

1. First, install the required package using the npm command in your terminal:

npm install celebrate

1. Next, create a new file to define your Joi validation schema, for example, userValidation.js. Define your schema using the Joi library.
2. Import the celebrate and Joi libraries at the beginning of your main file.
3. Use the celebrate middleware to validate the incoming requests in your Node.js route handlers. For example:

const { celebrate, Joi } = require('celebrate');

1. Apply the celebrate middleware to the desired route, providing the validation schema as an argument. For example:

router.post('/example', celebrate({
  body: {
    username: Joi.string().alphanum().min(3).max(30).required(),
    email: Joi.string().email().required(),
    age: Joi.number().integer().min(0).max(200)
  }
}), (req, res) => {
  // Handle the validated request
});