public async Task SendEmailParticipantService(IEnumerable <FriendDTO> friends)
{
foreach (var friend in friends)
{
var viewModel = new
{
Friend = friend,
Date = DateTime.Now.ToString("dd/MM/yyyy")
};
var html = _emailTemplate.GenerateTemplateDrawEmail(DrawEmailTemplate, viewModel);
await SendEmailService(friend.Email, await html);
}
}