public class RequestCustomeMiddleware
    {
        private readonly RequestDelegate _next;

        public RequestCultureMiddleware(RequestDelegate next)
        {
            _next = next;
        }

        public Task Invoke(HttpContext context)
        {
            //......
            // do something

            // Call the next delegate/middleware in the pipeline
            return this._next(context);
        }
    }

    public static class RequestCustomMiddlewareExtensions
    {
        public static IApplicationBuilder UseRequestCustomCulture(
            this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<RequestCustomMiddleware>();
        }
    }

    public void Configure(IApplicationBuilder app)
    {
        app.UseRequestCulture();
    }