This demo Web app shows how to use RingCentral SMS API to implement a 2-Factor Authentication (2FA) service.

2FA helps prevent brute force attacks and protect user's accounts.

After 3 unsuccessful attempts were made to log into a user's account, the account will be temporarily locked. The service will generate a 6-digit verification code and send the code to the user's mobile phone number. The user has to use the verification code to unlock his/her account. The verification code can be used only one time and it also expires after 1 hour. If the verification code is incorrect, or if the verification code expired, the user has to request for a new verification code.

When a user wants to reset the login password. The service will generate a 6-digit verification code and send the code to the user's mobile phone number. The user has to use the verification code to set a new password for his/her account. The verification code can be used only one time and it also expires after 1 hour. If the verification code is incorrect, or if the verification code expired, the user has to request for a new verification code.

RingCentral Connect Platform is a rich RESTful API platform with more than 60 APIs for business communication includes advanced voice calls, chat messaging, SMS/MMS and Fax.

To setup a free developer account, click https://developer/ringcentral.com

• Click the Signup tab and complete the signup form to create an account. Use a real phone number!
• Click the Login tab and try to login 3 times with an incorrect password.
• Check your SMS message to get the verification code.
• Enter the verification code to unlock the account. Then login with a correct password.
• Click the Login tab and click the Reset password link.
• Enter the account email address and click the Submit button.
• Check your SMS message to get the verification code.
• Enter a new password and the verification code then click the Submit button to change the password.
• Login with a new password.

$ git clone https://github.com/ringcentral-tutorials/sms-2fa-nodejs-demo

$ cd sms-2fa-nodejs-node

$ npm intall --save

$ cp dotenv .env

$ node index.js

Remember to add your app client id and client secret as well as account login credentials to the .env file.

Open your Web browser and enter localhost:5000

The SDK is available at https://github.com/ringcentral/ringcentral-js