source: TFP-WebServer/WebServer/src/RequestContext.cs@ 479

using System.Collections.Specialized;
using SpaceWizards.HttpListener;

namespace Webserver {
        public class RequestContext {
                public string RequestPath;
                public readonly ERequestMethod Method;
                public readonly HttpListenerRequest Request;
                private NameValueCollection queryParameters;
                public readonly HttpListenerResponse Response;
                public readonly WebConnection Connection;
                public readonly int PermissionLevel;

                public NameValueCollection QueryParameters => queryParameters ??= Request.QueryString;

                public RequestContext (string _requestPath, HttpListenerRequest _request, HttpListenerResponse _response, WebConnection _connection, int _permissionLevel) {
                        RequestPath = _requestPath;
                        Request = _request;
                        Response = _response;
                        Connection = _connection;
                        PermissionLevel = _permissionLevel;
                        Method = _request.HttpMethod switch {
                                "GET" => ERequestMethod.GET,
                                "PUT" => ERequestMethod.PUT,
                                "POST" => ERequestMethod.POST,
                                "DELETE" => ERequestMethod.DELETE,
                                "HEAD" => ERequestMethod.HEAD,
                                "OPTIONS" => ERequestMethod.OPTIONS,
                                _ => ERequestMethod.Other
                        };
                }
        }
}