public async Task JoinGroup(string groupname)
{
if (!_repository.GroupExists(groupname))
{
throw new Exception("Cannot join a group that doesn't exist.");
}
await Groups.AddToGroupAsync(Context.ConnectionId, groupname);
await Clients.Group(groupname).SendAsync("JoinGroup", groupname);
var history = _repository.GetAllNewsItems(groupname);
await Clients.Client(Context.ConnectionId).SendAsync("History", history);
}
public List <NewsItem> CallFeeds(string newsSource)
{
return(newsRepository.GetAllNewsItems(appProperties.newsSourcesURLs[newsSource]));
}