Device Registration

Verify new devices and manage trusted devices for your users.

Device registration protects your users from account takeovers by requiring verification when they sign in from an unrecognized device. For a general overview of the feature, see Device Registration.

Prerequisites

• You need to have the Dynamic Client initialized.
• You need to have device registration enabled in your environment’s settings in the Dynamic Dashboard.
• JavaScript SDK v2 or later.

Checking if device registration is required

After a user authenticates, check whether their current device needs to be registered. This is determined by the device:register scope in the user’s session.

import { isDeviceRegistrationRequired } from '@dynamic-labs-sdk/client';

const user = dynamicClient.user;

if (user && isDeviceRegistrationRequired(user)) {
  // Show a banner or prompt to the user
  // The user will receive an email with a verification link
}

Completing device registration

When the user clicks the verification link in their email, they are redirected back to your app with a token in the URL. You need to detect this redirect and complete the registration.

import {
  detectDeviceRegistrationRedirect,
  getDeviceRegistrationTokenFromUrl,
  completeDeviceRegistration,
} from '@dynamic-labs-sdk/client';

const url = window.location.href;

if (detectDeviceRegistrationRedirect({ url })) {
  const deviceToken = getDeviceRegistrationTokenFromUrl({ url });
  const response = await completeDeviceRegistration({ deviceToken });

  // Device is now trusted — the user has full access
  console.log('Device registered for user:', response.user);
}

Listening for events

You can listen for device registration events to update your UI accordingly.

import { onEvent } from '@dynamic-labs-sdk/client';

// Fires when registration completes in the current tab
onEvent({
  event: 'deviceRegistrationCompleted',
  listener: () => {
    // Hide the registration banner, update UI, etc.
  },
});

// Fires when registration completes in another tab
onEvent({
  event: 'deviceRegistrationCompletedInAnotherTab',
  listener: () => {
    // Keep other open tabs in sync
  },
});

Getting registered devices

Retrieve all trusted devices for the current user.

import { getRegisteredDevices } from '@dynamic-labs-sdk/client';

const devices = await getRegisteredDevices();

devices.forEach((device) => {
  console.log(device.id, device.userAgent, device.isCurrentDevice);
});

Each device includes:

Field	Type	Description
id	string	The device registration ID
createdAt	string	ISO date of when the device was registered
userAgent	string	The browser or device user agent
isCurrentDevice	boolean	Whether this is the device making the request

Displaying devices

You can use parseUserAgent to display a friendly device name from the raw user agent string.

import { getRegisteredDevices, parseUserAgent } from '@dynamic-labs-sdk/client';
import { useEffect, useState } from 'react';

function RegisteredDevices() {
  const [devices, setDevices] = useState([]);

  useEffect(() => {
    getRegisteredDevices().then(setDevices);
  }, []);

  return (
    <ul>
      {devices.map((device) => {
        const parsed = parseUserAgent({ userAgent: device.userAgent });

        return (
          <li key={device.id}>
            {parsed?.type === 'mobile' ? '📱' : '💻'}{' '}
            {parsed?.displayText ?? 'Unknown device'}
            {device.isCurrentDevice && ' (this device)'}
          </li>
        );
      })}
    </ul>
  );
}

Revoking a device

Remove a single trusted device. If the revoked device is the current device, the user will be logged out.

import { revokeRegisteredDevice } from '@dynamic-labs-sdk/client';

await revokeRegisteredDevice({ deviceRegistrationId: 'device-id' });

Revoking all devices

Remove all trusted devices for the current user. This always logs the user out.

import { revokeAllRegisteredDevices } from '@dynamic-labs-sdk/client';

await revokeAllRegisteredDevices();

Related

• Device Registration Overview — How device registration works and why it matters
• Security Overview — Dynamic’s security posture