SCM-Manager/scm-ui/src/containers/App.js

import React, { Component } from "react";
import Navigation from "./Navigation";
import Main from "./Main";
import Login from "./Login";
import { withRouter } from "react-router-dom";

type Props = {
  login: boolean
};

class App extends Component {
  render() {
    const { login } = this.props;

    if (!login) {
      return (
        <div>
          <Login />
        </div>
      );
    } else {
      return (
        <div className="App">
          <Navigation />
          <Main />
        </div>
      );
    }
  }
}

export default withRouter(App);