package com.example.demo.controller;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @GetMapping("/hello")
    public ResponseEntity<String> hello(@RequestParam(required = false) String name) {
        String message = (name != null && !name.isBlank())
                ? "Hello, " + name + "!"
                : "Hello, World!";
        return ResponseEntity.ok(message);
    }
}