CalendarAggregator.Discovery.GetMeetupGroups2 C# (CSharp) Метод

        public static List<TaggableSource> GetMeetupGroups2(Calinfo calinfo, int delay, Dictionary<string, string> settings)
        {
            var meetup_key = settings["meetup_api_key"];
            var template = "https://api.meetup.com/2/open_events?key={0}&lat={1}&lon={2}&radius={3}";
            var url = String.Format(template,
                        meetup_key,
                        calinfo.lat,
                        calinfo.lon,
                        calinfo.radius);

            var json = HttpUtils.SlowFetchUrl(new Uri(url), delay).DataAsString();

            var dict = JsonConvert.DeserializeObject<Dictionary<String, object>>(json);
            var results = (JArray)dict["results"];
            var ids_and_cities = from result in results
                                 select new
                                 {
                                     id = result["group"]["id"].Value<string>(),
                                     city = GetMeetupCity(result)
                                 };

            var unique_ids_and_cities = ids_and_cities.Distinct();

            var taggable_sources = new List<TaggableSource>();

            Parallel.ForEach(source: unique_ids_and_cities, body: (id_and_city) =>
            {
                if (id_and_city.city != calinfo.City)
                    return;
                string name_and_pk = "meetupsources";
                try
                {
                    template = "https://api.meetup.com/2/groups?key={0}&group_id={1}";
                    url = String.Format(template,
                            meetup_key,
                            id_and_city.id);
                    json = HttpUtils.SlowFetchUrl(new Uri(url), delay).DataAsString();
                    dict = JsonConvert.DeserializeObject<Dictionary<String, object>>(json);
                    results = (JArray)dict["results"];
                    var result = results.First();
                    var name = result["name"].Value<string>();
                    var urlname = result["urlname"].Value<string>();
                    var home_url = "http://www.meetup.com/" + urlname;
                    var ical_url = string.Format("http://www.meetup.com/{0}/events/ical/{1}/",
                        urlname,
                        Uri.EscapeDataString(name));
                    ical_url = ical_url.Replace("%20", "+");  // otherwise meetup weirdly reports a 505 error
                    var taggable = new TaggableSource(
                            name,
                            calinfo.id,
                            home_url,
                            ical_url,
                            id_and_city.city);
                    taggable_sources.Add(taggable);
                    RememberTaggable(name_and_pk, id_and_city.id, taggable);
                }
                catch (Exception e)
                {
                    GenUtils.PriorityLogMsg("exception", "FindMeetupGroups", e.Message + e.StackTrace);
                }
            });
            return taggable_sources;
        }