Example of sending 2FA code via SMS using RingCentral JS SDK

ringcentralSend2faViaSMS.js

/**
Just for example's sake, this would most-likely receive
429 HTTP responses if used in production.
Should cache the access_token and re-use in a more
modular fashion, but it helps explain the idea better.
**/

// Instantiate the RingCentral SDK
var sdk = new RingCentral.SDK({
    server: 'https://platform.devtest.ringcentral.com', // SANDBOX
    //server: 'https://platform.ringcentral.com', // PRODUCTION
    appKey: 'REPLACE_WITH_YOUR_API_KEY',
    appSecret: 'REPLACE_WITH_YOUR_API_SECRET'
});

// Create a reference to the RingCentral Platform Singleton
var platform = sdk.platform();

// Convenience method for example
var sendSMS = function sendSMS(source, dest, message) {
    // Validate to suit
    return platform
        .post('/account/~/extension/~/sms', {
            from: {phoneNumber: source},
            to: {phoneNumber: dest},
            text: message
        })
        .then(function(response) {
            var data = response.json();
        });
});

// Create a six (6) digit code. This would need to be cached to verify the user maps to the
// provided code within the allotted time during invalidation attempts once user enters code
// on the appropriate URI or app view of your choosing
var authCode = Math.floor(100000 + Math.random() * 900000);

// Authenticate, then send SMS
platform
    .login({
        username: 'REPLACE_WITH_YOUR_RC_USERNAME',
        password: 'REPLACE_WITH_YOUR_RC_PASSWORD',
        extension: 'REPLACE_WITH_YOUR RC_USER_EXTENSION' // OPTIONAL
    })
    .then(sendSMS('1234567890', '15557890123', 'Your authentication code is' + authCode
    .catch(function(e) {
        throw e;
    });