Azure Event grid - Domain Event

CandidateEvent.cs

 public class CandidateEvents : ICandidateEvents
    {
        string topicEndpoint;
        string topicKey ;
        string topicHostname ;
        TopicCredentials topicCredentials ;
        EventGridClient client;

        public CandidateEvents()
        {
            topicEndpoint = "https://yourtopicendpoint/api/events";
            topicKey = "yourtopickey";
            topicHostname = new Uri(topicEndpoint).Host;
            topicCredentials = new TopicCredentials(topicKey);
            client = new EventGridClient(topicCredentials);
        }

        public async Task CandidateCreatedEvent(Candidate candidate)
        {
            List<EventGridEvent> eventsList = new List<EventGridEvent>();

            EventGridEvent ev = new EventGridEvent()
            {
                Id = new Guid().ToString(),
                Data = candidate,
                EventTime = DateTime.Now,
                EventType = "Somevent.CandidateCreated",
                DataVersion = "1.0",
                Subject = candidate.CandidateName.Identifier

            };

            eventsList.Add(ev);

            await client.PublishEventsAsync(topicHostname, eventsList );
        }

        public Task CandidateUpdatedEvent(Candidate candidate)
        {
            List<EventGridEvent> eventsList = new List<EventGridEvent>();

            EventGridEvent ev = new EventGridEvent()
            {
                Id = new Guid().ToString(),
                Data = candidate,
                EventTime = DateTime.Now,
                EventType = "Somevent.CandidateUpdated",
                DataVersion = "1.0",
                Subject = candidate.CandidateName.Identifier

            };

            eventsList.Add(ev);

            await client.PublishEventsAsync(topicHostname, eventsList );
        }
    }