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Recommended: JavaScript SDK with React Hooks

For new React apps, we recommend the JavaScript SDK with React Hooks (@dynamic-labs-sdk/react-hooks) instead of the legacy React SDK documented here. The JS SDK comes with many benefits such as a much smaller bundle size and other optimizations. Use the React quickstart (JavaScript SDK) to get started.

Summary

A hook which can be used to authenticate an already connected user. It’s useful when there is a need to authenticate a user who is currently in connect-only mode.
Learn more about the different authentication modes here.
The hook needs to be initialized within a child of DynamicContextProvider

Usage

Available functions and states:

  • authenticateUser - when called starts signing already connected user.
  • isAuthenticating - boolean which indicates the state of authentication.

Example usage:

const AuthenticateConnectedUserButton = () => {
  const { authenticateUser, isAuthenticating } = useAuthenticateConnectedUser();

  return (
    <button onClick={ authenticateUser } disable={ isAuthenticating }>
    { isAuthenticating ? 'Authenticating ...' : 'Authenticate connected wallet' }
    </button>
  )
}
Last modified on June 25, 2026