Browser history needs a DOM - reactjs

Question

There are already questions around this topic with solutions pointing to memoryHistory on server. However, I did that and the problem still remains to be on store.js which is inside client folder. Although I am not using this client/store.js it still gives me same error as the subject.
So my guess is there is something wrong in the way I am wrapping up my component on server or client side.
I am working on already loaded project stack - redux, react-redux, react-router-redux, redux-thunk, history etc... and these are honestly daunting for me to make an addition for a setup for SSR -server side rendering (my basic motive)
I will share my structure and important files which are involved in this exercise !
Let's welcome the server first.
server/bootstrap.js
require('ignore-styles');
require('babel-register')({
ignore: [ /(node_modules)/ ],
presets: ['es2015', 'react-app']
});
require('./index');
server/index.js
import express from 'express';
import serverRenderer from './middleware/renderer';
const PORT = 3000;
const path = require('path');
const app = express();
const router = express.Router();
// root (/) should always serve our server rendered page
router.use('^/$', serverRenderer);
// other static resources should just be served as they are
router.use(express.static(
path.resolve(__dirname, '..', 'build'),
{ maxAge: '30d' },
));
router.use('*', serverRenderer);
// tell the app to use the above rules
app.use(router);
// start the app
app.listen(PORT, (error) => {
if (error) {
return console.log('something bad happened', error);
}
console.log("listening on " + PORT + "...");
});
server/middleware/renderer.js
import React from 'react'
import ReactDOMServer from 'react-dom/server';
import { Provider } from 'react-redux';
import { ConnectedRouter } from 'react-router-redux';
import store from '../../src/store';
import {createMemoryHistory } from 'history';
import { StaticRouter } from 'react-router'
// import our main App component
import App from '../../src/index';
const path = require("path");
const fs = require("fs");
const history = createMemoryHistory({
initialEntries: ['/', '/next', '/last'],
initialIndex: 0
})
export default (req, res, next) => {
const filePath = path.resolve(__dirname, '..', '..', 'build', 'index.html');
fs.readFile(filePath, 'utf8', (err, htmlData) => {
if (err) {
console.error('err', err);
return res.status(404).end()
}
const html = ReactDOMServer.renderToString(
<Provider store={store}>
<ConnectedRouter history={history}>
<App />
</ConnectedRouter>
</Provider>
);
return res.send(
htmlData.replace(
'<div id="root"></div>',
`<div id="root">${html}</div>`
)
);
});
}
My src folder structure will be
components
containers
app
index.js
styles.js
index.js
store.js
src/index.js
import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import { ConnectedRouter } from 'react-router-redux';
import { StaticRouter } from 'react-router'
import './index.css';
import store, { history } from './store';
import App from './containers/app';
const target = document.querySelector('#root');
ReactDOM.render(
<Provider store={store}>
<ConnectedRouter history={history}>
<App />
</ConnectedRouter>
</Provider>,
target
);
The tough nut to understand
src/store.js
import { createStore, applyMiddleware, compose } from 'redux';
import { routerMiddleware } from 'react-router-redux';
import thunk from 'redux-thunk';
import createHistory from 'history/createBrowserHistory';
import rootReducer from './reducers';
export const history = createHistory();
const initialState = {};
const enhancers = [];
const middleware = [thunk, routerMiddleware(history)];
if (process.env.NODE_ENV === 'development') {
const devToolsExtension = window.devToolsExtension;
if (typeof devToolsExtension === 'function') {
enhancers.push(devToolsExtension());
}
}
const composedEnhancers = compose(applyMiddleware(...middleware), ...enhancers);
const store = createStore(rootReducer, initialState, composedEnhancers);
export default store;
on running node server/bootstrap.js, it give me an error
Invariant Violation: Browser history needs a DOM and this error generates in store.js
If someone could please let me know by the code shared what and where I am doing wrong to my current create-react-app for SSR!

Answer 1

I was loading the App twice. Once in client and other in server.
I rendered in server alone with the same setup (Provider and connected router) and importantly changed the createBrowserHistory to createMemoryHistory and it worked.