A very basic "Hello World" application using Spring Boot and React create-react-app.
Spring Boot is acting as a simple web server for your frontend application. To create api calls Redux would need to be introduced along with Rest Controllers on the Spring side.
./mvnw spring-boot:run
or on windows us mvnw.cmd
The application will be accessible on http://localhost:8080/
Open a new terminal window:
$ cd src/main/frontend/
$ yarn start
The frontend will be accessible on http://localhost:3000/