Why we use Joi in NodeJS?

Joi module is a popular module for data validation. This module validates the data based on schemas. There are various functions like optional(), required(), min(), max(), etc which make it easy to use and a user-friendly module for validating the data.

Is Joi deprecated?

@hapi/joi is deprecated #3430 This isn’t exactly a bug, but joi is moving out of the @hapi org. Probably a good idea of docusaurus v2 moves to the current version, too.

What are some popular NodeJS modules?

20 Node. js modules you need to know

• Manipulate images. GraphicsMagick and ImageMagick are two popular tools for creating, editing, composing and converting images.
• Process images.
• Generate sprite sheets.
• Format dates.
• Validate strings.
• Work with colour values.
• Generate PDF files.
• Process HTML files.

What is the use of Joi?

Joi is a validation library that allows you to build schemas to validate JavaScript objects. And what that generally means to me is Joi provides methods to easily validate common data types, such as e-mail addresses and phone numbers.

What is Joi in node?

Joi — awesome code validation for Node.

What is Joi in node JS?

Adopt Object Schema Validation for your NodeJS Projects Joi allows us to create blueprints of Javascript objects that ensure that we process and ultimately accept accurate data. This article will explore the use cases of Joi and how to apply it to your Node projects.

What are the packages in node JS?

Top 40 Node. js Packages For Increasing Developer Productivity

• Analyzing 40 Node.js Best Packages. Express. Async.js. Request – Simplified HTTP Client. Browserify. Grunt. PM2. Socket.IO. Commander.js. Mocha. Bower. Underscore. UglifyJS2. Cheerio. Passport. Nodemailer. Hapi. React. Karma. Pug. Node MySQL. LESS.
• Importance of NPM.

What are the most popular NPM packages?

Top 10 NPM Packages of All Time [Guest Post]

1. Cloudinary. Cloudinary is the best choice if you’re handling images of your website.
2. Express.
3. Nodist.
4. Lodash.
5. Browserify.
6. Debug.
7. Grunt.
8. Mocha.

How use Joi validation in express JS?

Roadmap

1. Create login , register , post joi schemas.
2. Export all schemas as single module( validators/index.js )
3. Create configurable middleware that takes schema name as parameter and validates request body( middlewares/Validator.js )
4. Create auth and post routes.
5. Create expressjs instance.

What is Joi object?

Hapi Joi is an object schema description language and validator for JavaScript objects. With Hapi Joi, we create blueprints or schemas for JavaScript objects (an object that stores information) to ensure validation of key information.

How do you validate an object in Joi?

In this article, we’ll look at how to validate objects with Joi.

1. isError. We can check if a property is an Error instance with the isError method: Joi.isError(new Error());
2. isExpression. The isExpressiuon method lets us check if the argument is an expression: const expression = Joi.x(‘{a}’);
3. isRef.
4. isSchema.
5. ref.
6. types.
7. any.

Are node modules packages?

A module is any file or directory in the node_modules directory that can be loaded by the Node. js require() function. Note: Since modules are not required to have a package. json file, not all modules are packages.