Email OTP sign-in

auth.email.sendOtp(email: string): Promise<{ verificationUUID: string }>

auth.email.verifyOtp(params: {
  verificationUUID: string;
  code: string;
  sessionPublicKey?: string;
}): Promise<AuthResult>

import { createAuthClient, generateSessionKeyPair } from '@dynamic-labs-wallet/node';

const auth = createAuthClient({ environmentId: 'your-environment-id' });
const { publicKeyHex, privateKeyJwk } = await generateSessionKeyPair();

const { verificationUUID } = await auth.email.sendOtp('user@example.com');

// The user receives the code by email; collect it through your own channel.
const { jwt, expiresAt } = await auth.email.verifyOtp({
  verificationUUID,
  code: otpCodeFromUser,
  sessionPublicKey: publicKeyHex,
});

try {
  const result = await auth.email.verifyOtp({ verificationUUID, code, sessionPublicKey });
} catch (error) {
  // - Wrong or expired code (401): "email OTP sign-in failed: the code or
  //   signature is invalid or expired"
  // - MFA-required account: "account requires MFA, which the headless auth
  //   client does not support"
  // - Cookie-auth environment: sign-in returned no JWT in the response body
  console.error('Sign-in failed:', error);
}