[Solved]-Redirect to same URL at client side after authentication from token server (identity server 4)-Reactjs

You have to use history in reactjs to get previous path and need to save in sessionStorage.

May be this will help you :

const SAVED_URI = 'APP_PLU';
const FORBIDDEN_URIS = ['/login-response', '/'];
const DEFAULT_URI = '/';

function setPostLoginUri() {
  // using just the pathname for demo, should be more detailed in production to
  // include query params, hash bangs, etc
  const currentPath = window.location.pathname;
  const savedURI = sessionStorage.getItem(SAVED_URI);

  if (FORBIDDEN_URIS.includes(currentPath) || savedURI) {
    return;
  }

  sessionStorage.setItem(SAVED_URI, currentPath);
}

function getPostLoginUri(retain) {
  const savedURI = sessionStorage.getItem(SAVED_URI);

  if (!retain) {
    sessionStorage.removeItem(SAVED_URI);
  }

  return savedURI || DEFAULT_URI;
}

export default {
  get: getPostLoginUri,
  set: setPostLoginUri
};

And set in the app.js

and then in your login response page add this code ,

function LoginResponse({ history, setUser }) {
  const [error, setError] = useState(null);

  useEffect(() => {
    // the login redirect has been completed and we call the
    // signinRedirectCallback to fetch the user data
    userManager.signinRedirectCallback().then(user => {
      // received the user data so we set it in the app state and push the
      // router to the secure or bookmarked route
      setUser(user);
      history.push(postLoginUri.get());
    }, ({ message }) => {
      // userManager throws if someone tries to access the route directly or if
      // they refresh on a failed request so we just send them to the app root
      if (message && redirectErrors.includes(message)) {
        history.push('/');
        return;
      }

      // for all other errors just display the message in production it would be
      // a good idea to initiate a sign out after a countdown
      setError(message);
    });
  }, []);

  return error;
}

export default LoginResponse;