Integrating OTPLESS WhatsApp Login in React JS A Step-by-Step Guide

This blog covers the steps involved in integrating OTPless "WhatsApp login" in JavaScript, providing users with a secure way to log in using their WhatsApp account credentials.
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Chirag Bhadiyadra
In recent years, the popularity of WhatsApp has grown tremendously. It is now one of the most widely used messaging apps in the world, with over 2 billion monthly active users. As a result, many businesses and websites are looking for ways to integrate WhatsApp into their services, including the login process. One way to do this is through OTPLESS "WhatsApp login". This method allows users to log in to your website or app using their WhatsApp account credentials without the need for a One Time Password (OTP).
Note: Before we start with the steps, make sure you have signed up at otpless.com

Step 1: Get the OTPLESS Library

The first step in integrating OTPLESS "WhatsApp login" in React JS is to obtain the OTPLESS library. You can get it from the official OTPLESS website at https://otpless.com/platforms.

Step 2: Copy and Paste the Code

The next step is to create the WhatsApp login button on your website or app. This button will allow users to log in to your service using their WhatsApp account credentials. You can create a button using HTML and CSS and label it as "WhatsApp Login". It should be placed in a prominent location on your website or app.
<!-- OTPless SDK --> <script type="text/javascript" src="https://otpless.com/auth.js"></script>

Step 3: WhatsApp Login

The final step is to handle the WhatsApp login once the user clicks on the WhatsApp login button. This involves using the OTPLESS library to authenticate the user's WhatsApp account and retrieve their account information.
Tip: You can use the onSuccess callback function to handle the user's account information and the onError callback function to handle errors.
useEffect(() => { // Define the 'otpless' function window.otpless = (otplessUser) => { // Retrieve the user's details after successful login const waName = otplessUser.waName; const waNumber = otplessUser.waNumber; // Handle the signup/signin process // ... }; }, []);


Integrating OTPless "WhatsApp login" in React JS is a simple process that can be accomplished by following these basic steps. By using OTPLESS "WhatsApp login", you can provide your users with a convenient and secure way to log in to your website or app using their WhatsApp account credentials.
Callout: Remember to keep your users' data safe and secure by following the best web and app development practices.
Revolutionize the way you authenticate users with OTPless's “WhatsApp Login” solution. By using the user's WhatsApp account to verify their phone number, OTPless eliminates the need for OTPs, which are vulnerable to interception and brute-force attacks.
Their solution provides a seamless and intuitive login experience for users, with the convenience and familiarity of WhatsApp. Plus, their clients have seen an increase in login conversion by 25%* after switching to their “WhatsApp Login” button.
And the best part? Adding the “WhatsApp Login” button to your login page is quick and easy - it can be done within 5 minutes with a simple copy-paste process. Try “WhatsApp Login” now and see the benefits for yourself.
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