Install create-react-app with npm install -g create-react-app. Create app with create-react-app contact-form-react. After it installs dependencies with Yarn, navigate to the new directory with cd ...

Using redux, I created the store.js file at the root of client/src/ dir, I moved the main App in app/index.js and added the components/ and reducers/ dirs. And I added a few import in files to work ...