public static void Main(string[] args)
{
IRealtimeGitterService realtimeGitterService = new RealtimeGitterService(_token);
realtimeGitterService.Connect();
realtimeGitterService.SubscribeToChatMessages(_roomId)
.Subscribe(message =>
{
Console.WriteLine("Message received.");
Console.WriteLine(JsonConvert.SerializeObject(message));
});
Console.ReadKey(true);
}
protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
{
//Logger
var logger = applicationContext.ProfilingLogger.Logger;
//Gitter API token
var apiToken = ConfigurationManager.AppSettings["GitterApiToken"];
if (string.IsNullOrEmpty(apiToken))
{
logger.Warn <GitterUmbracoEventHandler>("No Gitter API AppSetting key found in 'GitterApiToken'");
return;
}
//Register & setup/connect to Gitter Realtime API
var realtimeGitterService = new RealtimeGitterService(apiToken);
//Used to communicate & fire events from server code to SignalR connected JS clients
var gitter = GlobalHost.ConnectionManager.GetHubContext <GitterHub>();
//Let's connect & listen...
//This has to be done first before subscribe's
try
{
realtimeGitterService.Connect();
}
catch (Exception e)
{
//Could be connection issues
//Could be invalid API key etc...
//Log the error but don't attempt anymore Gitter bootup
var err = "Could not connect to Gitter's Realtime API Service.";
logger.Error <GitterUmbracoEventHandler>(err, e);
return;
}
//Get the room names from the appsetting
//'umbraco/playground,umbraco/some-other-room'
//The Room ID we want to listen for events from
//This appSetting contains a CSV of room IDs
var roomNames = ConfigurationManager.AppSettings["GitterRooms"];
if (string.IsNullOrEmpty(roomNames))
{
logger.Warn <GitterUmbracoEventHandler>("No Gitter Room Names are found in AppSetting key 'GitterRooms'");
return;
}
//Gitter API
var gitterService = new GitterService();
//Do some AutoMapper - so we get our new dervived class with computed friendly date to use in the JSON
AutoMapper.Mapper.CreateMap <Message, UmbracoMessage>();
var rooms = roomNames.Split(',');
//Setup the events for each room ID
foreach (var roomName in rooms)
{
//Call the API & get the Room ID
//Store the topic & other info of the room object into the cache
//Only at startup here will it ever get updated
var room =
applicationContext.ApplicationCache.StaticCache.GetCacheItem <Room>("GitterRoom__" + roomName,
() =>
{
return(gitterService.GetRoomInfo(roomName).Result);
});
//User presence
realtimeGitterService.SubscribeToUserPresence(room.Id)
.Subscribe(x =>
{
//Invoke signalR JS function prescenceEvent()
//Currently only fires a console.log with the data
gitter.Clients.Group(room.Id).prescenceEvent(new { prescenceEvent = x, room = room.Id });
}, onError: OnError);
//Room Events
realtimeGitterService.SubscribeToRoomEvents(room.Id)
.Subscribe(x =>
{
//Invoke signalR JS function roomEvent()
//Currently only fires a console.log with the data
gitter.Clients.Group(room.Id).roomEvent(new { roomEvent = x, room = room.Id });
}, onError: OnError);
//Users in room
realtimeGitterService.SubscribeToRoomUsers(room.Id)
.Subscribe(x =>
{
//Invoke signalR JS function userEvent()
//Currently only fires a console.log with the data
gitter.Clients.Group(room.Id).userEvent(new { userEvent = x, room = room.Id });
}, onError: OnError);
//Chat messages
realtimeGitterService.SubscribeToChatMessages(room.Id)
.Subscribe(x =>
{
try
{
//Cast them with AutoMapper to our derivied class - with the computed friendly date on it
var umbracoMessage = AutoMapper.Mapper.Map <UmbracoMessage>(x.Model);
//Invoke signalR JS function chatMessage()
gitter.Clients.Group(room.Id).chatMessage(new { operation = x.Operation, message = umbracoMessage, room = room.Id });
}
catch (Exception e)
{
//Error with JSON serialisation for SignalR
//OR Error with AutoMapper Mapping
logger.Error <GitterUmbracoEventHandler>("Error sending realtime message", e);
}
}, onError: OnError);
}
}
