jetherald/JetHerald/Controllers/HelloController.cs

using System.Reflection;
using Microsoft.AspNetCore.Mvc;

namespace JetHerald.Controllers
{
    [ApiController]
    public class HelloController : ControllerBase
    {
        [Route("api/hello")]
        [HttpGet]
        public object Hello()
        {
            return new
            {
                status = "OK",
                server_name = "JetHerald",
                server_version = Assembly.GetExecutingAssembly().GetCustomAttribute<AssemblyInformationalVersionAttribute>().InformationalVersion
            };
        }
    }
}