shoc-backend/Api.SeaHavenIndustries/Filters/ConcurrencyExceptionFilter.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.EntityFrameworkCore;

namespace Api.SeaHavenIndustries.Filters
{
    public class ConcurrencyExceptionFilter : IExceptionFilter
    {
        public void OnException(ExceptionContext context)
        {
            if (context.Exception is not DbUpdateConcurrencyException) return;

            context.Result = new ConflictObjectResult(new
            {
                status = "Conflict",
                message = "The record was modified by another user. Refresh and retry.",
                code = 409
            });
            context.ExceptionHandled = true;
        }
    }
}