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NodeJS SMS OTP API for User Verification

Unveiling Phone.Email's SMS OTP API for NodeJS

Phone.email
Phone email Admin
Phone Email App

14 February 2024 8 mins read

In the dynamic world of user authentication, Phone.Email emerges as a game-changer with its innovative "Log in with phone" button solution. This groundbreaking feature empowers users to verify their phone numbers at little to no cost, delivering a seamless and secure user experience. Similar to Firebase phone authentication, the "Login with Phone" button is embedded in client websites, triggering a verification window that requests users to input their country code and mobile number. Once the SMS OTP is successfully verified, control is seamlessly redirected to the client website, complete with a JWT auth token.

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Key Features of Using Phone.Email's SMS OTP API

  1. Cost-Effective Phone Verification: Phone.Email's SMS OTP API offers a cost-effective solution for phone number verification, eliminating the need for expensive third-party services.
  2. Seamless User Experience: The "Login with Phone" button ensures a smooth and user-friendly experience, allowing users to verify their phone numbers with minimal effort.
  3. Free SMS OTP Service: Enjoy the benefits of a free SMS OTP service, making it an attractive option for businesses looking to enhance security without incurring additional costs.
  4. JWT Auth Token Integration: Upon successful verification, the API seamlessly integrates with client websites, providing a JWT auth token for secure and efficient user authentication.

Integrating the "Login with Phone" Button: A Step-by-Step Guide

To harness the power of Phone.Email's SMS OTP API for NodeJS, follow these integration steps:

  1. Create an Admin Account: Begin by creating an admin account on the Phone.Email dashboard: Admin Dashboard.
  2. Add "Login with Phone" Button: Embed the "Login with Phone" button in your client website to trigger the SMS OTP verification process. Utilize the following Node.js code example:

    <script>
      function openSignInWindow() {
        const COUNTRY_CODE = 'your_country_code';
        const PHONE_NO = 'your_phone_number';
        const REDIRECT_URL = 'your_redirect_url';
    
        const url = `https://www.phone.email/auth/sign-in?countrycode=${COUNTRY_CODE}&phone_no=${PHONE_NO}&redirect_url=${REDIRECT_URL}`;
    
        window.open(url, 'peLoginWindow', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0, width=500, height=560, top=' + (screen.height - 600) / 2 + ', left=' + (screen.width - 500) / 2);
      }
    </script>
    

    GitHub Code Snippet: Sign-in-with-Phone-NodeJS

  3. Retrieve Verified Phone Numbers in NodeJS: After successful verification, obtain verified phone numbers in Node.js using the provided code snippet:

    try {
        const decoded = jwt.verify(token, api_key, { algorithm: 'HS256' });
        jwt_response = 1; // JWT decoded successfully
        jwt_phone = decoded.country_code + decoded.phone_no;
      } catch (error) {
        jwt_response = 0; // Invalid JWT
        jwt_phone = '';
    }
    

    GitHub Code Snippet: Sign-in-with-Phone-NodeJS

Explore Phone.Email's SMS OTP API in Action

To witness the power of Phone.Email's SMS OTP API and the "Login with Phone" button in action, explore our demo:

OTP API Demo using "Log in with Phone" button: Phone.Email Demo

For detailed integration guidelines and comprehensive documentation, refer to our official documentation:

Read Documentation: Phone.Email Documentation

Try it today

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