public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequestMessage req, TraceWriter log)
{
log.Info($"Webhook was triggered!");
// Initialize the azure bot
using (new AzureFunctionsResolveAssembly())
using (BotService.Initialize())
{
// Deserialize the incoming activity
string jsonContent = await req.Content.ReadAsStringAsync();
var activity = JsonConvert.DeserializeObject <Activity>(jsonContent);
// authenticate incoming request and add activity.ServiceUrl to MicrosoftAppCredentials.TrustedHostNames
// if request is authenticated
if (!await BotService.Authenticator.TryAuthenticateAsync(req, new[] { activity }, CancellationToken.None))
{
return(BotAuthenticator.GenerateUnauthorizedResponse(req));
}
if (activity != null)
{
// one of these will have an interface and process it
switch (activity.GetActivityType())
{
case ActivityTypes.Message:
await Conversation.SendAsync(activity, () => new EchoDialog());
break;
case ActivityTypes.ConversationUpdate:
var client = new ConnectorClient(new Uri(activity.ServiceUrl));
IConversationUpdateActivity update = activity;
if (update.MembersAdded.Any())
{
var reply = activity.CreateReply();
var newMembers = update.MembersAdded?.Where(t => t.Id != activity.Recipient.Id);
foreach (var newMember in newMembers)
{
reply.Text = "Welcome";
if (!string.IsNullOrEmpty(newMember.Name))
{
reply.Text += $" {newMember.Name}";
}
reply.Text += "!";
await client.Conversations.ReplyToActivityAsync(reply);
}
}
break;
case ActivityTypes.ContactRelationUpdate:
case ActivityTypes.Typing:
case ActivityTypes.DeleteUserData:
case ActivityTypes.Ping:
default:
log.Error($"Unknown activity type ignored: {activity.GetActivityType()}");
break;
}
}
return(req.CreateResponse(HttpStatusCode.Accepted));
}
}
protected void Application_Start()
{
GlobalConfiguration.Configure(WebApiConfig.Register);
BotService.Initialize();
}
