IM_NEW/GroupService.WebApi/Application/EventHandler/GroupMemberJoinedHandler.cs

using GroupService.Domain.Events;
using IM.Commons.IntegrationEvents;
using MassTransit;
using MediatR;

namespace GroupService.WebApi.Application.EventHandler
{
    public class GroupMemberJoinedHandler : INotificationHandler<GroupMemberJoinedDomainEvent>
    {
        private readonly IPublishEndpoint endpoint;

        public GroupMemberJoinedHandler(IPublishEndpoint endpoint)
        {
            this.endpoint = endpoint;
        }

        public async Task Handle(GroupMemberJoinedDomainEvent notification, CancellationToken cancellationToken)
        {
            var member = notification.Member;
            await endpoint.Publish(new GroupMemberJoinedEvent(member.Id,
                member.UserId, member.GroupId, member.GroupNickName, member.Avatar,
                member.Role.ToString()), cancellationToken);
        }
    }
}