Goal of Create ESRI React App is to connect ESRI and React application with minimal effort by using create-react-app to create react application and esri-loader to add the ArcGIS JS API to React app. A prerequisite for this application is Create React App already installed in your development environment. If Create React App is not installed on your system run:

npm install create-react-app -g 

To install Create ESRI React App application run:

$ npm install create-esri-react-app -g - or - $ yarn global add create-esri-react-app 

To create ESRI React application run:

$ create-esri-react-app esri_app 

It will create a directory called esri_app inside the current folder.
Inside that directory, it will generate the initial project structure and install the transitive dependencies:

esri_app ├── README.md ├── node_modules ├── package.json ├── .gitignore ├── public │ └── favicon.ico │ └── index.html │ └── manifest.json └── src └── App.css └── App.js └── App.test.js └── index.css └── index.js └── logo.svg └── registerServiceWorker.js 

You can specify version of ESRI ArcGIS JS api during creation process. If you don't specify ESRI ArcGIS JS api version default version will be v4.

$ create-esri-react-app esri_app_v4 - or - $ create-esri-react-app esri_app_v3 -a 3 

Create React apps with no build configuration.

• Getting Started – How to create a new app.
• User Guide – How to develop apps bootstrapped with Create React App.

Create React App works on macOS, Windows, and Linux.
If something doesn’t work please file an issue.