packages/browser/src/helpers/platformAuthenticatorIsAvailable.ts


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import { browserSupportsWebAuthn } from "./browserSupportsWebAuthn";

/**
 * Determine whether the browser can communicate with a built-in authenticator, like
 * Touch ID, Android fingerprint scanner, or Windows Hello.
 *
 * This method will _not_ be able to tell you the name of the platform authenticator.
 */
export function platformAuthenticatorIsAvailable(): Promise<boolean> {
  if (!browserSupportsWebAuthn()) {
    return new Promise((resolve) => resolve(false));
  }

  return PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable();
}