I have been using Azure Notification Hubs along with GCM to send notifications to the users of my app. This was all working great until I published the app to the Play Store.
Now it gives a 500 Server error whenever I try to post a notification. I have no idea why this error is happening. Perhaps the app is not picking up the RavenDB where the notifications are stored?
But it looks more like the service is not getting back users that are registered on the Hub. I really don't know... Any help would be so appreciated!
This is my stacktrace when run locally, it is the same but less detailed when published:
"Message": "An error has occurred.",
"ExceptionMessage": "Value cannot be null.\r\nParameter name: source",
"ExceptionType": "System.ArgumentNullException",
"StackTrace": " at System.Linq.Enumerable.Where[TSource](IEnumerable`1 source, Func`2 predicate)\r\n
at AcademicAssistantService.Controllers.NotificationController.<GetRecipientNamesFromNotificationHub>d__8.MoveNext()
in C:\\Users\\Kenneth\\Documents\\College\\Semester 8\\AcademicAssistantService\\AcademicAssistantService\\Controllers\\NotificationController.cs:line 105
This is the Controller action:
// POST api/notification
public async Task<IHttpActionResult> Post([FromBody]Notification notification, String key)
{
var notificationToSave = new Notification
{
NotificationGuid = Guid.NewGuid().ToString(),
TimeStamp = DateTime.UtcNow,
Message = notification.Message,
SenderName = notification.SenderName
};
var recipientNames = await GetRecipientNamesFromNotificationHub(key);
var recipientNamesString = CreateCustomRecipientNamesString(recipientNames);
string notificationJsonPayload =
"{\"data\" : " +
" {" +
" \"message\": \"" + notificationToSave.Message + "\"," +
" \"senderName\": \"" + notificationToSave.SenderName + "\"," +
" \"recipientNames\": \"" + recipientNamesString + "\"" +
" }" +
"}";
if (key == null)
{
var result = await _hubClient.SendGcmNativeNotificationAsync(notificationJsonPayload);
notificationToSave.TrackingId = result.TrackingId;
notificationToSave.Recipients = recipientNames;
}
else
{
foreach (string r in recipientNames)
{
if ((r != notification.SenderName))
{
var result = await _hubClient.SendGcmNativeNotificationAsync(notificationJsonPayload, "user:" + r);
notificationToSave.TrackingId = result.TrackingId;
notificationToSave.Recipients = recipientNames;
}
}
}
await Session.StoreAsync(notificationToSave);
return Ok(notificationToSave);
}
To get names from hub:
public async Task<List<string>> GetRecipientNamesFromNotificationHub(String key)
{
var registrationDescriptions = await _hubClient.GetAllRegistrationsAsync(Int32.MaxValue);
var recipientNames = new List<String>();
foreach (var registration in registrationDescriptions)
{
if (registration is GcmRegistrationDescription)
{
var userName = registration.Tags
.Where(t => t.StartsWith("user"))
.Select(t => t.Split(':')[1].Replace("_", " "))
.FirstOrDefault();
userName = userName ?? "Unknown User";
Conversation convo = db.Conversations.Find(key);
foreach (User u in convo.Users)
{
if (u.Email == userName && !recipientNames.Contains(userName))
{
recipientNames.Add(userName);
}
}
}
}
return recipientNames;
}
Could you use Service Bus Explorer and verify indeed you have tags starts with "user". And I also see you are using GetAllRegistrationsAsync API, which is recommend to use only for debugging purpose. This is heavily throttled API.
Thanks,
Sateesh
Related
I have this ASP.NET Core 2.1 web application. The admin gets online game codes from the page below. Selecting the game (Razer Gold Pin), quantity and email to send those codes.
A Rest API call is made for the purchase. There is a limit for purchasing, a maximum of 200 purchases can be made at one time.
At first, there wasn't much to buy so there was no problem. But the demand has increased, when there are 10 thousand, 20 thousand purchases, it is necessary to purchase from this screen for hours. I wonder can we make a large number of purchases without waiting in front of the screen with scheduling?
Here is the the Javascript in the cshtml:
$("#btn_add").html(
'<span class="spinner-border spinner-border-sm" role="status" id="spinner" aria-hidden="true"></span> Loading...'
);
var selText = $("#validationCustom04").val();
var gameName = $("#validationCustom04 option:selected").text();
var quantity = $("#quantity").val();
var email = $("#email").val();
var price = $("#total").val();
var company = $("#validationCustom05").val();
if ($("#total").val() !== '') {
price = $("#total").val();
}
var serviceUrl = '/GameBanks/A101PinAsync?quantity=' + quantity + '&game=' + selText + '&email=' + email + '&prc=' + price + '&gameName=' + gameName + '&company=' + company;
$.ajax({
type: "GET",
url: serviceUrl,
dataType: 'json',
success: function (data) {
//alert(JSON.stringify(data));
ShowResult(data);
$("#spinner").remove();
$("#btn_add").html('Add');
}, error: function (xhr, status, error) {
$("#spinner").remove();
$("#btn_add").html('Add');
var errorMessage = xhr.responseText;
alert('Error - ' + errorMessage);
}
});
Here is the controller method:
[HttpGet]
public async Task<IActionResult> A101PinAsync(int quantity, string game, string email, int prc, string gameName, string company)
{
var price = 0;
try
{
string result = null;
var dList = new DemoList();
if (prc > 0)
{
price = prc;
}
var games = new Game { Product = game, Quantity = quantity };
var content = await games.CallGameAsync("Test", "12345", game, quantity, company);
var deserializedResult = JObject.Parse(content);
var root = JsonConvert.DeserializeObject<Root>(content);
if ((string)deserializedResult["coupons"]?[0]?["Serial"] == null)
{
result = result + gameName + ":" + (string)deserializedResult["Message"] + "\n";
}
else
{
foreach (var coupon in root.coupons)
{
result = result + gameName + " Serial:" + coupon.Serial + " Pin:" + coupon.Pin + "\n";
}
}
dList.gameList = result;
// NLOG
NLogPin(logger, User.Identity.Name, DateTime.Now, result, email);
return new JsonResult(dList);
}
catch (Exception e)
{
// NLOG
NLog(logger2, "OyunPalas " + e.Message, DateTime.UtcNow,0);
return StatusCode(500,e.Message);
}
}
Here is the Web API calling method:
public class Game
{
public string Username { get; set; }
public string Password { get; set; }
public string Product { get; set; }
public int Quantity { get; set; }
public string ShopNo { get; set; }
private static readonly Logger logger2 = LogManager.GetLogger("exceptionFile");
public async Task<string> CallGameAsync(string username, string password, string product, int quantity, string company)
{
try
{
HttpWebRequest request = null;
request = (HttpWebRequest)WebRequest.Create("http://111.111.111.111:1907//api/v2/web/purchase");
var svcCredentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(username + ":" + password));
request.Headers.Add("Authorization", "Basic " + svcCredentials);
request.Method = "POST";
request.KeepAlive = false;
request.ContentType = "application/x-www-form-urlencoded";
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("productCode", product),
new KeyValuePair<string, string>("quantity", quantity.ToString()),
new KeyValuePair<string, string>("shopNo", company),
new KeyValuePair<string, string>("safeNo", company),
new KeyValuePair<string, string>("cashierNo", company)
});
var urlEncodedString = await content.ReadAsStringAsync();
using (var streamWriter = new StreamWriter(await request.GetRequestStreamAsync()))
{
await streamWriter.WriteAsync(urlEncodedString);
}
var httpResponse = (HttpWebResponse) (await request.GetResponseAsync());
var response = new HttpResponseMessage
{
StatusCode = httpResponse.StatusCode,
Content = new StreamContent(httpResponse.GetResponseStream()),
};
//Read response
var htmlResponse = await response.Content.ReadAsStringAsync();
return htmlResponse;
}
catch (Exception e)
{
//NLOG
NLog(logger2, "Test" + e.Message);
throw;
}
}
public void NLog(Logger logger, string user)
{
var sb = new StringBuilder();
sb.AppendLine("Test: " + user);
logger.Info(sb.ToString());
}
}
I have to pass product (game type) to the job. I read the https://www.quartz-scheduler.net/documentation/quartz-3.x/tutorial/more-about-jobs.html#jobdatamap documentation but not fully understand how to use in my case. And I wonder if I can stop/cancel the job from this page before its end time?
I really appreciate any help you can provide. I'm sorry if the question is too silly as I have no experience with this scheduling.
Edit:
I thought of a solution like this, but I'm not sure if it's viable.
The user will enter which game, how many they want to buy, and their e-mail address on the screen.
This data will be saved in a table (BulkRequest) containing this information and the status field in the SQL database. (game: ABC, quantity:20000, status:0)
One IHostedService will get the saved data in a schedule which status=0 from the BulkRequest table and the save requests with status information in a new table (GameRequests) in multiples of 100. (game: ABC, quantity:100, status:0)
Another IHostedService will get the records in 10 minutes schedule which status=0 from the GameRequests table and make the 3rd party API call. Write a response to another table (GameResponses) and set the status=1 if there is no error.
When all requests are completed (status = 1), the status in the BulkRequest table will also be updated to 1.
A third IHostedService will check the status of BulkRequest, if status=1 then maybe a fourth service will prepare a file and send the responses to the e-mail.
I do suggest reviewing message queuing tools such RabbitMQ. With this architecture you will do all the jobs using messaging protocols with no need for "scheduling" and any "x minutes schedule" s would be ommited. Also it is more stable and error handling could be done using best practice standards. More important, it is scalable and you can have multiple hostedServices even on different servers process items in queue:
When request is registered send a message (publish) to the queue.
The hostedService1 receives the item and process it (consume). Multiple services may subscribe to process requests.
The hostedService1 may do all the job it self or even dispatch some parts to other services using the same method
The solution you proposed is doing the same job with an ad-hoc process. In fact you are reinventing the wheel. Hope it helps.
I need to log exceptions and bad requests in my API. Currently I am using try catch to catch the exception and add to my logs in the catch block. Is this the right way? I read about Global Error Handling in ASP.NET. How can I implement that approach for this case?
Below is my API Controller example:
[HttpPost]
[Authorize]
[ValidateModel]
[Route("CheckProgramOwner")]
public async Task<IHttpActionResult> CheckProgramOwner([FromBody] CheckProgramOwner _data)
{
try
{
using (var db = new VisualVoiceFlowEntities())
{
var Result= await db.VVF_ScriptFlow.Where(s => s.ProgramId == _data.ProgramId).OrderByDescending(s => s.ID).FirstOrDefaultAsync();
if(Result== null)
{
Log.Error("Error in CheckProgramOwner POST Request - " + "ProgramId not found");
return Content(HttpStatusCode.BadRequest, "ProgramId not found");
}
string CurrentOwner = Result.ReadBy.ToString();
return Ok(CurrentOwner);
}
}
catch (Exception ex)
{
Log.Error("Error in CheckProgramOwner POST Request - " + ex.Message, ex);
NewRelic.Api.Agent.NewRelic.NoticeError("Error in CheckProgramOwner POST Request - " + ex.Message, null);
return Content(HttpStatusCode.InternalServerError, "Internal Server Error. Please Contact Admin.");
}
}
If you read the document previously posted by Casey, you will find a link to the following document, which explains how to implement and register an exception filter globally:
https://learn.microsoft.com/en-us/aspnet/web-api/overview/error-handling/exception-handling#registering_exception_filters
You could then implement your logging logic in the filter's body thus avoiding having to repetitively log errors on each try/catch. I would suggest logging the more obvious errors using your original approach and use the filter to log any other errors (that you might not expect.)
I did it using ExceptionFilter.
I created Exception Filter Class as below -
public class MyExceptionFilter : ExceptionFilterAttribute
{
public override void OnException(HttpActionExecutedContext context)
{
log4net.ThreadContext.Properties["addr"] = HttpContext.Current.Request.UserHostAddress;
log4net.ThreadContext.Properties["Hostname"] = Dns.GetHostName().ToString();
log4net.ThreadContext.Properties["PCName"] = Dns.GetHostAddresses(Environment.MachineName)[0].ToString();
string RequestMethod = context.Request.Method.Method;
dynamic ControllerInfo = context.ActionContext.ControllerContext.Controller;
string RequestName = ControllerInfo.Url.Request.RequestUri.LocalPath.ToString().Replace("/api/", "").Replace("/VVFAPI", "");
Log.Error("Error in " + RequestName +" "+ RequestMethod+ " Request - " + context.Exception.Message, context.Exception);
NewRelic.Api.Agent.NewRelic.NoticeError("Error in " + RequestName + " " + RequestMethod + " Request - " + context.Exception.Message, null);
HttpResponseMessage msg = new HttpResponseMessage(HttpStatusCode.InternalServerError)
{
Content = new StringContent("Internal Server Error. Please Contact Admin."),
ReasonPhrase = "Critical Exception."
};
context.Response = msg;
}
}
Also, I changed my controller accordingly
[HttpPost]
[Authorize]
[ValidateModel]
[MyExceptionFilter]
[Route("CheckProgramOwner")]
public async Task<IHttpActionResult> CheckProgramOwner([FromBody] CheckProgramOwner _data)
{
Log.Info("CheckProgramOwner POST Request");
using (var db = new VisualVoiceFlowEntities())
{
var Result = await db.VVF_ScriptFlow.Where(s => s.ProgramId == _data.ProgramId).OrderByDescending(s => s.ID).FirstOrDefaultAsync();
if (Result == null)
{
Log.Error("Error in CheckProgramOwner POST Request - " + "ProgramId not found");
return Content(HttpStatusCode.BadRequest, "ProgramId not found");
}
string CurrentOwner = Result.ReadBy.ToString();
return Ok(CurrentOwner);
}
}
I need to create/update and delete Shared Access Policy programmatically from my application on an existing Service Bus.
I can do that just fine from portal.azure.com but how do I do that programmatically? Is there a rest API for this? I've read through this document but can't seem to make it work.
Any help will be highly appreciated, thanks!
It is possible to create Shared access policy for Azure bus Service queus or topics. Please refer the below link for programmatical implementation with .Net
https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-sas#generate-a-shared-access-signature-token
Please use the below code for creating the Shared access policy programatically.
public async Task<ResourceAuthorizationRule> UpdateAuthorizationRuleForQueueAsync(string connectionString, string queuePath, string RuleName, IList<RuleRequest> RuleRequest)
{
ResourceAuthorizationRule _sharedAccessAuthorizationRule = new ResourceAuthorizationRule();
NamespaceManager namespaceManager = NamespaceManager.CreateFromConnectionString(connectionString);
var queue = await namespaceManager.GetQueueAsync(queuePath);
queue.Authorization.Clear();
int index = connectionString.IndexOf("SharedAccessKeyName=");
var queueConnectionString = connectionString.Substring(0, index);
foreach (RuleRequest _authorization in RuleRequest)
{
var rightList = new List<Microsoft.ServiceBus.Messaging.AccessRights>();
foreach (var rule in _authorization.Rights)
{
if (rule.Equals(Models.Azure.AccessRights.Manage))
{
rightList.AddRange(new[]
{Microsoft.ServiceBus.Messaging.AccessRights.Manage, Microsoft.ServiceBus.Messaging.AccessRights.Send, Microsoft.ServiceBus.Messaging.AccessRights.Listen});
break;
}
else
{
if (rule.Equals(Models.Azure.AccessRights.Send))
{
rightList.Add(Microsoft.ServiceBus.Messaging.AccessRights.Send);
}
if (rule.Equals(Models.Azure.AccessRights.Listen))
{
rightList.Add(Microsoft.ServiceBus.Messaging.AccessRights.Listen);
}
}
}
queue.Authorization.Add(new SharedAccessAuthorizationRule(_authorization.RuleName,
_authorization.PrimaryKey ?? SharedAccessAuthorizationRule.GenerateRandomKey(),
_authorization.SecondaryKey ?? SharedAccessAuthorizationRule.GenerateRandomKey(),
rightList));
}
dynamic result = await namespaceManager.UpdateQueueAsync(queue);
foreach (var _authorization in result.Authorization)
{
_sharedAccessAuthorizationRule.Rights = new List<Models.Azure.AccessRights?>();
if (_authorization.KeyName == RuleName)
{
_sharedAccessAuthorizationRule.Name = _authorization.KeyName;
_sharedAccessAuthorizationRule.PrimaryKey = _authorization.PrimaryKey;
_sharedAccessAuthorizationRule.SecondaryKey = _authorization.SecondaryKey;
foreach (Models.Azure.AccessRights right in _authorization.Rights)
{
_sharedAccessAuthorizationRule.Rights.Add(right);
}
_sharedAccessAuthorizationRule.PrimaryConnectionString = queueConnectionString + "SharedAccessKeyName=" + RuleName + ';' + _authorization.ClaimType + '=' + _authorization.PrimaryKey + ";EntityPath=" + queuePath;
_sharedAccessAuthorizationRule.SecondaryConnectionString = queueConnectionString + "SharedAccessKeyName=" + RuleName + ';' + _authorization.ClaimType + '=' + _authorization.SecondaryKey + ";EntityPath=" + queuePath;
}
}
return _sharedAccessAuthorizationRule;
}
I'm having an issue with sending a POST request for Pinterest in a UWP app I'm working on. I already have the access code from a previous WebAuthenticationBroker function. I've tried using the WebAuthenticationBroker with the UseHttpPost option under options with authenticating async, but, as I've provided my if functions, it returns ERROR. I just get a "message": "405: Method Not Allowed" and "type" : "http". I've looked all over, I've even tried using an HttpClient and PostAsync(), but I couldn't get it to get the access token. Any advise to what I'm doing wrong?
private void OutputToken(string TokenUri)
{
int tokenString = TokenUri.IndexOf('=');
string TheTokenUri = TokenUri.Substring(tokenString + 54);
PinterestReturnedTokenText.Text = TheTokenUri;
outputToken = TheTokenUri;
}
private async void auth()
{
try
{
string CallbackUrl = "https://localhost/";
string PinterestUrl = "https://api.pinterest.com/v1/oauth/token?grant_type=authorization_code&client_id=" + PinterestClientID + "&client_secret=" + PinterestClientSecret + "&code=" + outputCode;
Uri StartUri = new Uri(PinterestUrl);
Uri EndUri = new Uri(CallbackUrl);
WebAuthenticationResult WebAuthenticationResult = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.UseHttpPost, StartUri, EndUri);
if (WebAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
{
OutputToken(WebAuthenticationResult.ResponseData.ToString());
await GetPinterestNameAsync(WebAuthenticationResult.ResponseData.ToString());
}
else if (WebAuthenticationResult.ResponseStatus == WebAuthenticationStatus.ErrorHttp)
{
OutputToken("HTTP Error returned by AuthenticateAsync() : " + WebAuthenticationResult.ResponseErrorDetail.ToString());
}
else
{
OutputToken("Error returned by AuthenticateAsync() : " + WebAuthenticationResult.ResponseStatus.ToString());
}
}
catch (Exception Error)
{
PinterestReturnedTokenText.Text = "ERROR";
}
}
I am a newbie to C# & am trying to use the Lync SDK to search for a Lync user programmatically to get their status. I am not sure how to pass the results to the webservice response when the async callback gets executed.
This is the code:
Webservice Controller GET endpoint:
// GET: api/Lync/5
public String Get(int id)
{
log.Info("[GET] Search for Lync User: " + id);
Lync lync = new Lync();
////lync.signIn();
Boolean isSignedIn = lync.isUserSignedIn();
if (isSignedIn)
{
log.Info("User is Signed In");
Console.Write("Enter search key : ");
lync.Search("medina");
//lync.Search("medina",
//(lyncContacts) =>
//{
// log.Debug("Search Results Callback fired!");
// log.Info("Results found: " + lyncContacts.Count);
// return lyncContacts.ToString();
//});
//Console.WriteLine(name);
//Console.ReadLine();
return "testUser";
}
else
{
log.Info("User is not Signed In!");
// TODO: Return status 500
return "testUser";
}
//Console.ReadLine();
//return "testUser";
}
The above method calls the business service lync.search(..) which is as follows:
public void Search(string searchKey)
{
List<LyncContact> contactList = new List<LyncContact>();
//List<ContactInformationType> ContactInformationList = new List<ContactInformationType>();
//ContactInformationList.Add(ContactInformationType.Activity);
//ContactInformationList.Add(ContactInformationType.Availability);
// ContactInformationList.Add(ContactInformationType.CapabilityString);
//ContactSubscription contactSubscription = LyncClient.GetClient().ContactManager.CreateSubscription();
Console.WriteLine("Searching for contacts on " + searchKey);
LyncClient.GetClient().ContactManager.BeginSearch(
searchKey,
(ar) =>
{
SearchResults searchResults = LyncClient.GetClient().ContactManager.EndSearch(ar);
if (searchResults.Contacts.Count > 0)
{
log.Info("Search results found: " + searchResults.Contacts.Count);
Console.WriteLine(searchResults.Contacts.Count.ToString() + " found");
foreach (Contact contact in searchResults.Contacts)
{
String displayName = contact.GetContactInformation(ContactInformationType.DisplayName).ToString();
ContactAvailability currentAvailability = (ContactAvailability)contact.GetContactInformation(ContactInformationType.Availability);
Console.WriteLine(
contact.GetContactInformation(ContactInformationType.DisplayName).ToString() + " " + contact.GetContactInformation(ContactInformationType.Availability).ToString());
log.Debug("Display Name: " + displayName);
log.Debug("Availability: " + currentAvailability);
LyncContact lyncContact = new LyncContact.Builder().DisplayName("Snehil").Availability("Busy").build();
contactList.Add(lyncContact);
//done(contactList);
}
return;
}
else
{
log.Info("No Results found!");
//done(contactList);
return;
}
},
null);
} else
{
log.Info("No Results found!");
//done(contactList);
return;
}
},
null);
}
I tried to use Task+await but I am having a hard time trying to figure out how can i return the results from the callback funtion as results from the search method. How do i capture this in the controller class?
If you would like to use the async/await pattern for this use Task.FromAsync https://msdn.microsoft.com/en-us/library/system.threading.tasks.taskfactory.fromasync(v=vs.110).aspx
Google for examples. Like this:
public async Task<List<LyncContact>> SearchAsync(string searchKey)
{
List<LyncContact> contactList = new List<LyncContact>();
Console.WriteLine("Searching for contacts on " + searchKey);
var cm = LyncClient.GetClient().ContactManager;
var searchResults = await Task<SearchResults>.Factory.FromAsync<String>(
cm.BeginSearch,
cm.EndSearch, searchKey, null);
if (searchResults.Contacts.Count > 0)
{
Console.WriteLine(searchResults.Contacts.Count.ToString() + " found");
foreach (Contact contact in searchResults.Contacts)
{
String displayName = contact.GetContactInformation(ContactInformationType.DisplayName).ToString();
ContactAvailability currentAvailability = (ContactAvailability)contact.GetContactInformation(ContactInformationType.Availability);
Console.WriteLine(
contact.GetContactInformation(ContactInformationType.DisplayName).ToString() + " " + contact.GetContactInformation(ContactInformationType.Availability).ToString());
LyncContact lyncContact = new LyncContact.Builder().DisplayName("Snehil").Availability("Busy").build();
contactList.Add(lyncContact);
}
}
return contactList
}
In the controller you then can do:
public async Task<String> Get(int id)
{
log.Info("[GET] Search for Lync User: " + id);
Lync lync = new Lync();
////lync.signIn();
Boolean isSignedIn = lync.isUserSignedIn();
if (isSignedIn)
{
log.Info("User is Signed In");
Console.Write("Enter search key : ");
var lyncContacts = await SearchAsync("medina");
log.Info("Results found: " + lyncContacts.Count);
return lyncContacts.ToString();
}
else
{
log.Info("User is not Signed In!");
// TODO: Return status 500
return "testUser";
}
//Console.ReadLine();
//return "testUser";
}
Or you can use a TaskCompletionSource, see http://blog.stephencleary.com/2012/07/async-interop-with-iasyncresult.html (older post but principle is still valid.
Warning
I cannot compile this since I do not have access to the libraries you use. It should work but there might be some compile errors
What does it do
Callbacks are not a nice model to work with, as you have found out. using Tasks and the async/await model are far easier to work with. Luckily for you and me they have created several methods that can act as a bridge between the old and the new model. Using Task.FromAsync you can transform IAsyncResult methods to an easier to use Task based methodology. Stephen Cleary has written some nice blogs about them. See the post I mentioned earlier.
It looks like, by looking at your commented out code, that you tried to provide some sort of callback to your Search function. That would work, it should be of type Action<Microsoft.Lync.Model.SearchResults>
public void Search(string searchKey, Action<SearchResults> callback)
{
....
LyncClient.GetClient().ContactManager.BeginSearch(
searchKey,
(ar) =>
{
SearchResults searchResults = LyncClient.GetClient().ContactManager.EndSearch(ar);
callback(searchResults);
});
....
}
Then just uncomment the code in your controller:
lync.Search("medina",
(lyncContacts) =>
{
log.Debug("Search Results Callback fired!");
log.Info("Results found: " + lyncContacts.AllResults.Count);
});