How to make authorization on JavaScript

This article will show you how to create an authorization process in JavaScript, complete with an example.

Making Authorization on JavaScript

Authorization is an important process in web development. JavaScript is a popular programming language used for creating interactive web applications. It can be used to create user authentication and authorization systems. In this article, we will look at how to make authorization on JavaScript.

The first step in creating an authorization system on JavaScript is to create a user database. This will store all the information about the users who will be using the application. This includes their login credentials, such as emails and passwords. It may also store additional information such as their name, address, and other personal information. The user database can be created using a database server such as MongoDB or PostgreSQL.

Once the user database is created, the next step is to create a login page. This page will be used to allow users to log in to the application. The page should contain a form that takes in the user's username and password. It should also contain a submit button that will then send the information to the server for authentication.

The server will then compare the credentials entered by the user to those stored in the user database. If the credentials match, the server will respond with a success message and the user will be logged in. If the credentials do not match, the server will respond with an error message and the user will be denied access.

Once the user is logged in, the application can then use JavaScript to check the user's authorization level. This can be done by checking the user's role in the application. The roles can be assigned to the users when they are added to the user database. For example, a user with the role of "admin" will have access to all the features of the application while a user with the role of "user" will only have access to certain features.

The application can then use the roles to allow or deny access to certain features based on the user's authorization level. For example, a user with the role of "admin" may be allowed to delete users from the application while a user with the role of "user" may not be allowed to do so. This can be done using the following code:

if (role === 'admin') {
  // Allow user to delete users
} else {
  // Deny user access
}

The code above will check the user's role and allow or deny access to certain features based on that role. This is just one example of how to use JavaScript to make authorization. There are many other ways to use JavaScript to create a secure authorization system.

Authorization is an important part of web development and JavaScript is a powerful tool that can be used to create secure authorization systems. In this article, we looked at how to make authorization on JavaScript. We created a user database, created a login page, and used roles to allow or deny access to certain features. We also looked at an example of how to use JavaScript to make authorization.