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Building a Secure Login Flow in React

5 min read

When it comes to classic login panels, authentication is normally done through the use of a username and password. The majority of users these days are required to register initially, after which they can use their username and password to complete additional authentication on the website.

As a result of many breaches and other problems, a large amount of user data is being disclosed regularly, including usernames and passwords. This can lead to the compromising of other accounts of users using the same password across different accounts. 

To mitigate this risk, organizations are increasingly relying on multiple types of authentication methods, such as requesting an OTP after the username and password have been entered. There are various alternative approaches in which a password is not required. For example, a website will typically send an OTP to the mobile number or email address provided during the registration process, and the user will be able to log in without a password. 

Another option is for the organization to offer the user a URL that will automatically log him in without the need for any additional authentication steps.

How Passwordless Authentication Works
How Passwordless Authentication Works

Problems with the Login Process

Because the website provides many authentication methods, the attack surface is also increased.

There are a number of issues that are associated with login. So, let’s take a quick look at what they are.

SQL Injection

Most websites do not sanitize user inputs before passing them along to SQL queries, which results in SQL injections in the database. This vulnerability has the potential to disclose sensitive user data such as usernames and passwords, which could result in the compromise of user accounts.

Broken authentication

Numerous security-related features must be implemented before a login panel can be deployed, such as the implementation of request rate limiting, the validation of login flows such as OTP verification or magic link, and the proper implementation of login flows. These features prevent hackers from bypassing user authorization through brute force.

The configuration of authentication via third-party service providers (OAuth) such as Google, Facebook, and GitHub is fraught with difficulties for even the most experienced engineers. The creation of these login flows requires a significant amount of effort, and if they are not properly built, an attacker can exploit these login flows to steal the user token and take over the user accounts.

As a result, building a login panel from scratch and then maintaining it effectively—resolving bugs and protecting the system—is quite difficult. In addition, various login tools, such as the forgot password or signup option, can be used to take over other people’s user accounts if not implemented properly.

Oauth Authorization Code Flow
Oauth Authorization Code Flow

Implementing an efficient and reliable login process

As previously stated, building a login panel is a difficult task, and then maintaining it is quite important. If there are any faults in the login process, the credentials of all users will be revealed, which will have a negative impact on the organization’s reputation as a whole.

As a result, we can quickly and effectively design a safe and dependable login process that will provide a wide range of possibilities.

You may utilize free tools like Frontegg’s Login Box Builder to secure authentication in your application, which is really useful. It includes a variety of configurable choices, such as the ability to adjust the styles and the ability to use a variety of third-party logins through the usage of OAuth. You can also pick between logins with a password and logins without a password. Passwordless login can be achieved in one of two ways: either by delivering a magic link to the user or by implementing an OTP system.

Its implementation is straightforward and may be accomplished by simply clicking on a few things.

Let’s understand how it can be implemented.

You must first go to the Frontegg website to register an account. After that, you will be presented with a dashboard containing various functions you may use, such as authorization and authentication. Because we will be deploying login forms, we will go with authentication as our method of security.

It includes both password and passwordless login options, including OTP or a magic link. Once you have chosen your login type, you can move ahead. You can also configure social logins. For example, you can enable Google Login by turning the toggle on.

Login Form

After configuring your login type, you can style the login panel. The style option allows you to change the look of the login panel, including the button style, font style, font type, and error style. You can also select from the available themes.

Form Style

After selecting the style and authentication method, you may start deploying the login panel.

It has two different options for deployment.

  1. Hosted login: Our application will include a Frontegg-hosted login page, and you will be able to choose from a variety of tech stacks, including React, Vue, and Angular. It will provide you with a dedicated URL for your hosted application, which you can use in your code.
  2. Embedded Login: The login panel is embedded in your app. It also has React, Vue, and Angular tech stacks.

To deploy, simply install NPM or Yarn. You may get the application’s sample code from the GitHub repository.

I’m currently using integrated login. Install the FrontEgg React.JS library before deploying. NPM will be used for this deployment.

You can use this command to install the libraries.

Install Frontegg

The output will look like this. 

Kali Login

After installing the libraries, wrap the root component in FronteggProvider.

The index.js code is as follows:

Login Code

You must additionally set up the useAuth hook. Frontegg’s useAuth hook allows you to send non-authenticated users to the login page and retrieve their information. The app.js code for creating the hook is:

App Js Code

Once everything is set up, start the npm to start the project and deploy the login panel.

Start the app using this command: npm start

The output is as follows.

Npm Start
Npm Start

Now go to http://localhost:3000/account/login to see the login screen.

Login Screen
Login Screen

Your login panel will be placed on the live website after you whitelist your domain and add your OAuth credentials.

Allowed Origin


Building secure login and other functions such as forgot password, sign-ups, etc. can be a pretty tough effort as it is very vital to implement them appropriately. If not implemented appropriately, they can lead to the entire account being taken over or the exposing of user data. 

Frontegg provides a very straightforward way to implement each of these things, that too in a highly secure manner. You may add a lot of other social logins too, like allowing people to log in from their social media accounts. You may implement the login panel in very easy steps, and it will start working in a couple of minutes.

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