Replace Your Authentication System with Face Recognition using FACEIO's fio.js, & Tailwind.css
Tags: webdev, tutorials, react, tailwindcss
Published: 2023-11-27 00:40:04

---
title: Replace Your Authentication System with Face Recognition using FACEIO's fio.js, & Tailwind.css
published: true
description: Integrating FACEIO for face recognition authentication offers a blend of enhanced security and user convenience.
tags: #webdev #tutorials #react #tailwind
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/0ahniwf3qjyezgh66nm2.png
# Use a ratio of 100:42 for best results.
# published_at: 2023-11-26 23:19 +0000
---

In the realm of web development, user authentication has traditionally been dominated by username and password combinations. However, with advancements in biometric technologies, [face recognition](https://faceio.net) is emerging as a more secure and user-friendly alternative. This article delves into the integration of [FACEIO](https://faceio.net), a cutting-edge face recognition platform, into web applications, offering a step-by-step guide to replace traditional login methods with facial authentication.

## Why Choose Face Recognition Authentication?

Face recognition authentication offers several advantages over traditional methods:

1. **Enhanced Security**: Unlike passwords, which can be guessed or stolen, facial features are unique to each individual, making it much harder to impersonate a user.
2. **Improved User Experience**: Users can access their accounts quickly and effortlessly without the need to remember passwords.
3. **Reduced Fraud Risk**: Face recognition reduces the risk of phishing and other social engineering attacks.

### Now, the Details:

[FACEIO](https://faceio.net) is a cross-browser, Cloud & [On-Premise](https://faceio.net/on-premise) deployable, facial authentication framework, with a client-side JavaScript library (fio.js) that [integrates seamlessly](https://faceio.net/integration-guide) with any website or web application desiring to offer secure facial recognition experience to their users.

Put it simply, FACEIO is the easiest way to add **passwordless authentication** to web sites or applications. Simply [implement fio.js on your website](https://faceio.net/integration-guide), and you will be able to instantly authenticate your existing users, and enroll new ones via Face Recognition using their computer Webcam or smartphone frontal camera on their favorite browser.

![FACEIO Proces](https://miro.medium.com/v2/resize:fit:4800/format:webp/0*Kw11bl5qJ82NsKSP.gif)

### Some Nice FACEIO Features

* [Highest security standards](https://faceio.net/security-best-practice). [Privacy by design](https://faceio.net/apps-best-practice) with maximum user convenience.
* No requirements for biometric sensor.
* Authenticates and confirms identity of users instantly without FIDO keys, OTP codes, or security questions. Refer to the 
* Full cross-browser compatibility (Chrome, Firefox, Safari, Edge & Chromium derivatives).
* **Zero external dependency. Only standard technology implemented in plain JavaScript & CSS**.
* **Defense grade accuracy with less than 100 milliseconds recognition speed powered by state-of-the-art [facial recognition engines](https://faceio.net/facialid#facial-recognition-engine)**.


[FACEIO](https://faceio.net) works with regular Webcams or smartphones frontal camera on all modern browsers, does not require biometric sensors to be available on the client side, and [works seemingly](https://faceio.net/integration-guide) with all websites and web-based applications regardless of the underlying front-end JavaScript framework or server-side language or technology.

### Implementing FACEIO on your web application

Integrating FACEIO on your website or web application is straightforward **regardless of the underlying JavaScript framework** whether it is React., Vue.js, Next.js or even Vanilla JS.
Before so, **you need to create a new application first on the [FACEIO Console](https://console.faceio.net), and link this resource to your website or web application.** The checklist below highlights the steps to follow for a smooth integration of 
fio.js on your website or app:

1. Create a new FACEIO application first: Follow the **Application Wizard** on the [FACEIO Console](https://console.faceio.net) to create your first application and link it to your website or web application.
2. The [Application Wizard](https://console.faceio.net) should automate the creation process for you. Usually, this involve inputting an application name, **selecting a facial recognition engine**, cloud storage region, reviewing security options, customizing the Widget layout, and so forth...
![FACEIO Application Wizard](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bg5vc6db6k49ob6lj8s0.png)
3. Once your first FACEIO application created, [simply implement](https://faceio.net/integration-guide) *fio.js*, our facial recognition JavaScript library on your website, and [initialize the library](https://faceio.net/integration-guide#fiojs-instantiate) with your application Public ID.
4. Congratulations 👏. **You have FACEIO up & running!** Now, it's time to *enroll()* and *authenticate()* your first user via face recognition as we will see on the HTML boilerplate..

![Enroll New User](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qj8zkyfsuutz6jd2tfrv.png)

### The HTML Integration Boilerplate
{% gist https://gist.github.com/symisc/34203d2811a39f2a871373abc6dd1ce9 %}

### Understand the fundamentals

* To **enroll (register) a new user**, simply call the *enroll()* method from the recently instantiated *faceIO* object. The *enroll()* method let you **transactionally enroll new users on your application**. A process better known as on-boarding. It is the equivalent implementation of a standard register/sign-up function in a traditional password managed, authentication system. This is done on line 31 of the gist above.
* Effective call to *enroll()*, will trigger the FACEIO Widget, ask for user’s consent (if not yet authorized), request access (if not yet granted) to the browser’s Webcam/Frontal camera stream, and finally **extract & index the facial features of the enrolled user for future [authentication purposes](https://faceio.net/integration-guide#authenticate)**.
* *enroll()* takes a number of [Optional Parameters](https://faceio.net/integration-guide#enroll_param) including *locale* for the interaction language, *permissionTimeout* which correspond to the number of seconds to wait for the user to grant camera access permission, but more importantly, *enroll()* accept a **payload** which simply put, **an arbitrary set of data you can link to this particular user** such as an Email Address, Name, ID, etc. **This payload will be forwarded back to you upon successful [future authentication](https://faceio.net/integration-guide#authenticate) of this particular user**.

👉 **The enroll() method, its expected parameters, Promise fulfillment, error handling, etc. are officially documented [here](https://faceio.net/integration-guide#enroll)**.

* To **Authenticate & Recognize a previously enrolled user**, simply call the *authenticate()* method from the recently instantiated *faceIO* object. The *authenticate()* method let you **transactionally authenticate (recognize)** previously enrolled users on your application. It is the equivalent implementation of a standard login/sign-in function in a traditional password managed, authentication system.
* *authenticate()* [returns a Promise](https://faceio.net/integration-guide#authenticate_return) whose fulfillment handler receives a *userData* object when the user has successfully been identified. The most important fields of this object are: **payload**, which is the arbitrary data you have already linked (if any) to this particular user during his [enrollment](https://faceio.net/integration-guide#enroll) via the payload parameter, the *enroll()* method takes, and **Facial ID**, which is an Universally Unique Identifier assigned to this particular user during his enrollment. This Facial ID alongside the payload data could serve as a lookup key on your backend to fetch data linked to this particular user on each future successful authentication for example.

👉 **The authenticate() method, its expected parameters, Promise fulfillment, error handling, etc. are officially documented [here](https://faceio.net/integration-guide#authenticate)**.

### Best Practices and Considerations

Integrating FACEIO for face recognition authentication offers a blend of enhanced security and user convenience. As web technologies evolve, embracing such innovative authentication methods can significantly improve user experience while maintaining high security standards.

* **[Security Best Practices](https://faceio.net/security-best-practice)**: This guideline presents several best practices that have a significant, positive impact on your FACEIO application's security.
* **[Privacy Best Practices](https://faceio.net/apps-best-practice)**: This guideline presents several best practices that have a significant, positive impact on your FACEIO application's privacy practices.

### Further Reading

It’s super quick to implement FACEIO, and get it up & running on your website or web application. The following tutorials, and guides should help you get started with FACEIO:

* [Getting Started Tutorial](https://faceio.net/getting-started): Learn the fundamentals. Your first steps with FACEIO...
* [Integration Guide](https://faceio.net/integration-guide): Learn how to implement fio.js, our facial recognition library on your website before rolling facial authentication to your audience...
* [Developer Center](https://faceio.net/dev-guides): Code samples, documentation, support channels, and all the resources you need to implement FACEIO on your website...
* [Frequently Asked Questions](https://faceio.net/faq): Get instant answers to the most common questions.

### Community Contributed Tutorials

The following, high-content, community contributed guides & tutorials should help you [implement](https://faceio.net/integration-guide) *fio.js* on your web or mobile application using your favorite JavaScript framework whether it is React, Vue, Angular, Next, React or Vanilla JavaScript:

* [Official NPM Package for FACEIO](https://www.npmjs.com/package/@faceio/fiojs)
* [Facial Authentication with FACEIO & HTMX](https://itnext.io/face-authentication-with-htmx-a1dffb9247e0)
* [FACEIO Community Forum - Find answers to the most common questions](https://community.faceio.net/)
* [Implement a Facial Recognition Authentication System Using React.js & Tailwind](https://betterprogramming.pub/replace-your-auth-system-with-facial-recognition-using-reactjs-and-tailwindcss-9af4898ab5a2)
* [Integrating FACEIO into a React Web Application with Tailwind CSS](https://levelup.gitconnected.com/integrating-faceio-into-a-react-web-application-with-tailwind-css-208904a394c2)
* [Building Face Authentication in React with FaceIO and Bootstrap 5](https://levelup.gitconnected.com/building-face-authentication-in-react-with-faceio-and-bootstrap-5-ba619d804e13)