<unstable_HistoryRouter>

declare function HistoryRouter(
  props: HistoryRouterProps
): React.ReactElement;

interface HistoryRouterProps {
  basename?: string;
  children?: React.ReactNode;
  history: History;
}

<unstable_HistoryRouter> takes an instance of the history library as prop. This allows you to use that instance in non-React contexts or as a global variable.

import * as React from "react";
import * as ReactDOM from "react-dom";
import { unstable_HistoryRouter as HistoryRouter } from "react-router-dom";
import { createBrowserHistory } from "history";

const history = createBrowserHistory({ window });

ReactDOM.render(
  <HistoryRouter history={history}>
    {/* The rest of your app goes here */}
  </HistoryRouter>,
  root
);

This API is currently prefixed as unstable_ because you may unintentionally add two versions of the history library to your app, the one you have added to your package.json and whatever version React Router uses internally. If it is allowed by your tooling, it's recommended to not add history as a direct dependency and instead rely on the nested dependency from the react-router package. Once we have a mechanism to detect mis-matched versions, this API will remove its unstable_ prefix.