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The signup-id screen collects the user’s identifier — such as email, username, or phone number — as the first step of a multi-step signup flow. It also supports federated signup via social or enterprise connections.
Signup ID

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Import

Each screen has its own set of hooks and methods. The SDK supports partial import and root import for each screen.
  • Using partial import allows you to include only the code you need for your specific use case.
  • Using root import allows you to load all screens from a single bundle useful when you want a unified build to handle all possible screens.
Import Example
// root import
import { useSignupId } from '@auth0/auth0-acul-react';

// partial import
import {
  useSignupId,
  // Context hooks
  useUser,
  useTenant,
  useBranding,
  useClient,
  useOrganization,
  usePrompt,
  useScreen,
  useTransaction,
  useUntrustedData,
  // Common hooks
  useCurrentScreen,
  useAuth0Themes,
  useErrors,
  // Utility hooks
  useChangeLanguage,
  useSignupIdentifiers,
  useUsernameValidation,
  // Methods
  signup,
  federatedSignup,
  pickCountryCode,
} from '@auth0/auth0-acul-react/signup-id';

function SignupIdForm() {
  const { signup } = useSignupId();
  return (
    <button onClick={() => signup({ email: 'user@example.com' })}>
      Continue
    </button>
  );
}

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Context Hooks

Screen-scoped hooks that provide read-only access to Auth0 context data on the signup-id screen. Import them from @auth0/auth0-acul-react/signup-id.
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useBranding
() => BrandingMembers
This hook provides branding configurations, such as logo, colors, and theme settings displayed on the signup-id screen.
Example
import { useBranding } from '@auth0/auth0-acul-react/signup-id';
function CustomTheme() {
  const branding = useBranding();
}
​
useClient
() => ClientMembers
This hook provides client-related configurations, such as id, name, and logoUrl, for the signup-id screen.
Example
import { useClient } from '@auth0/auth0-acul-react/signup-id';
function AppInfo() {
  const client = useClient();
}
​
useOrganization
() => OrganizationMembers
This hook provides information about the user’s Organization if the signup is Organization scoped. Returns null when no Organization context is present.
Example
import { useOrganization } from '@auth0/auth0-acul-react/signup-id';
function OrgSelector() {
  const organization = useOrganization();
  if (!organization) {
    return <p>No organization context</p>;
  }
}
​
usePrompt
() => PromptMembers
This hook contains data about the current prompt in the authentication flow.
Example
import { usePrompt } from '@auth0/auth0-acul-react/signup-id';
function FlowInfo() {
  const prompt = usePrompt();
}
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useScreen
() => ScreenMembersOnSignupId
This hook contains details specific to the signup-id screen, including its configuration and context.
Example
import { useScreen } from '@auth0/auth0-acul-react/signup-id';
function ScreenDebug() {
  const screen = useScreen();
}
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useTenant
() => TenantMembers
This hook contains data related to the tenant, such as id and associated metadata.
Example
import { useTenant } from '@auth0/auth0-acul-react/signup-id';
function TenantInfo() {
  const tenant = useTenant();
}
​
useTransaction
() => TransactionMembersOnSignupId
This hook provides transaction-specific data for the signup-id screen, such as active connections and current flow state.
Example
import { useTransaction } from '@auth0/auth0-acul-react/signup-id';
function TransactionInfo() {
  const transaction = useTransaction();
}
​
useUntrustedData
() => UntrustedDataMembers
This hook handles untrusted data passed to the screen, such as a prefilled email or username from URL parameters.
Example
import { useUntrustedData } from '@auth0/auth0-acul-react/signup-id';
function PrefilledForm() {
  const untrustedData = useUntrustedData();
}
​
useUser
() => UserMembers
This hook provides details of the active user, including username, email, and available authentication methods.
Example
import { useUser } from '@auth0/auth0-acul-react/signup-id';
function UserProfile() {
  const user = useUser();
}
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useSignupId
SignupIdMembers
This hook returns all methods and context available on the signup-id screen.

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Methods

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federatedSignup
void | Promise<void>
This method initiates signup via a federated identity provider, such as Google or GitHub.
Example
import { useSignupId } from '@auth0/auth0-acul-react/signup-id';

function SocialButton() {
  const { federatedSignup } = useSignupId();
  return (
    <button onClick={() => federatedSignup({ connection: 'google-oauth2' })}>
      Sign up with Google
    </button>
  );
}
​
pickCountryCode
void | Promise<void>
This method opens the country code picker for phone number input during signup.
Example
import { useSignupId } from '@auth0/auth0-acul-react/signup-id';

function CountryCodePicker() {
  const { pickCountryCode } = useSignupId();
  return (
    <button onClick={() => pickCountryCode()}>
      Select Country Code
    </button>
  );
}
​
signup
void | Promise<void>
This method submits the user’s identifier to proceed to the next step of the signup flow.
Example
import { useSignupId } from '@auth0/auth0-acul-react/signup-id';

function SignupIdForm() {
  const { signup } = useSignupId();
  return (
    <button onClick={() => signup({ email: 'user@example.com' })}>
      Continue
    </button>
  );
}

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Common/Utility Hooks

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useAuth0Themes
Hooks
This hook gets the current theme options with flattened configuration from branding context.
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useChangeLanguage
Hooks
This hook returns a function for changing the display language on the current ACUL screen.
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useCurrentScreen
Hooks
This hook gets the current screen context and state.
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useErrors
Hooks
This hook reads and manages server, client, and developer errors on the screen.
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useSignupIdentifiers
Hooks
This hook returns the available signup identifier types (email, username, phone) configured for the connection.
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useUsernameValidation
Hooks
This hook validates the user’s username against the tenant’s username policy requirements.