Подключены основные зависимости

package.json

@@ -6,9 +6,17 @@
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.5.0",
     "@testing-library/user-event": "^7.2.1",
+    "axios": "^0.19.2",
+    "bootstrap": "^4.5.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
-    "react-scripts": "3.4.1"
+    "react-redux": "^7.2.0",
+    "react-router": "^5.2.0",
+    "react-router-dom": "^5.2.0",
+    "react-scripts": "3.4.1",
+    "reactstrap": "^8.4.1",
+    "redux": "^4.0.5",
+    "redux-thunk": "^2.3.0"
   },
   "scripts": {
     "start": "react-scripts start",

src/App.js

-import React from 'react';
-import logo from './logo.svg';
-import './App.css';
-
-function App() {
-  return (
-    <div className="App">
-      <header className="App-header">
-        <img src={logo} className="App-logo" alt="logo" />
-        <p>
-          Edit <code>src/App.js</code> and save to reload.
-        </p>
-        <a
-          className="App-link"
-          href="https://reactjs.org"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          Learn React
-        </a>
-      </header>
-    </div>
-  );
-}
-
-export default App;

src/containers/App.js

+import React from 'react';
+import {Switch, Route} from "react-router-dom";
+import {Container} from "reactstrap";
+import './App.css';
+
+
+function App() {
+  return (
+      <>
+          <Container>
+            <Switch>
+
+            </Switch>
+          </Container>
+      </>
+  );
+}
+
+export default App;
+
+

src/index.js

 import React from 'react';
 import ReactDOM from 'react-dom';
+import {applyMiddleware, createStore, compose} from "redux";
 import './index.css';
-import App from './App';
+import thunk from "redux-thunk";
+import App from './containers/App';
 import * as serviceWorker from './serviceWorker';
+import {BrowserRouter} from "react-router-dom";
+import 'bootstrap/dist/css/bootstrap.min.css';
+import {Provider} from "react-redux";
+import reducer from "./store/reducer";
+
+
+const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;
+const store = createStore(
+    reducer,
+    composeEnhancers(applyMiddleware(thunk))
+);
 
 ReactDOM.render(
     <React.StrictMode>
-    <App />
+        <Provider store={store}>
+            <BrowserRouter>
+                <App/>
+            </BrowserRouter>
+        </Provider>
     </React.StrictMode>,
     document.getElementById('root')
 );

src/store/reducer.js

+const initialState = {
+    error: null,
+    loading: false,
+    contacts: {}
+};
+
+const reducer = (state = initialState, action) => {
+    return state
+};
+
+export default reducer
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