src/main/java/ai/giskard/learnspringwebsockets/IndexController.java

package ai.giskard.learnspringwebsockets;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class IndexController {
    @GetMapping("/")
    public String index() {
        return "Hello world!";
    }
}