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import { useCallback, useEffect } from 'react';
import { useStytch, useStytchUser } from '@stytch/react';

export const App = () => {
const stytch = useStytch();
const { user } = useStytchUser();

useEffect(() => {
  if (user) {
    // redirect to logged in experience
  }
}, [user]);

const authenticate = useCallback(() => {
  stytch.session.updateSession({
    session_token: 'a session token from your backend',
    session_jwt: 'a session JWT from your backend',
  });

  stytch.session.authenticate({ session_duration_minutes: 60 });
}, [stytch]);

return <button onClick={authenticate}>Hydrate session</button>;
};
Update a user’s session tokens to hydrate a front-end session from the backend. For example, if you log your users in with one of our backend SDKs, you can pass the resulting session_token and session_jwt to this method to prime the frontend SDK with a valid set of tokens. You must then make an authenticate call to authenticate the session tokens and retrieve the user’s current session.

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Parameters

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tokens
object
The session tokens to update the front-end session.