I am developing a Windows store app, however I used this method to generate an user id when the app open by first time
private string host = "http://etc.com";
public async void RegisterUsuario() {
string displayName = await UserInformation.GetDisplayNameAsync();
string url = host + "/json/Register.php?code=" + displayName;
try
{
var http = new HttpClient();
var jsonText = await http.GetStringAsync(url);
var jsonValues = JsonArray.Parse(jsonText)[0];
var status = jsonValues.GetObject().GetNamedString("status");
if (status == "error")
{
var dialog = new MessageDialog("No se pudo registrar tu usuario", "¡Oops!");
await dialog.ShowAsync();
}
else
{
ApplicationDataContainer localSettings = ApplicationData.Current.LocalSettings;
localSettings.Values["usuario"] = jsonValues.GetObject().GetNamedNumber("id");
}
}
catch {
alertCatch("No se pudo registrar tu usuario");
}
}
THE JSON RESPONSE:
[{"status":"success","id":32}]
The problem:
In my pc always works fine, but when I submit the app to the windows store I always get this:
http://imgur.com/lOT09l7
the same error that will show the app in the CATCH.
Can you help me, maybe something in the appxmanifest?
In capabilities I selected private and public networks
Related
Experienced problems with C# SDK documentation which can be found here:
http://googleapis.github.io/google-cloud-dotnet/docs/Google.Cloud.Dialogflow.V2/api/Google.Cloud.Dialogflow.V2.SessionsClient.html#Google_Cloud_Dialogflow_V2_SessionsClient_Create_Google_Api_Gax_Grpc_ServiceEndpoint_Google_Cloud_Dialogflow_V2_SessionsSettings_
No reference for method ToChannelCredentials().
We cannot connect the SDK to dialogflow, even with blank project. Is this method still existing or deprecated?
using Google.Cloud.Dialogflow.V2;
using Google.Apis.Auth.OAuth2;
using Grpc.Auth;
using Grpc.Core;
...
GoogleCredential cred = GoogleCredential.FromFile("/path/to/credentials.json");
Channel channel = new Channel(
SessionsClient.DefaultEndpoint.Host, SessionsClient.DefaultEndpoint.Port, cred.ToChannelCredentials());
SessionsClient client = SessionsClient.Create(channel);
...
// Shutdown the channel when it is no longer required.
channel.ShutdownAsync().Wait();
Have you tried connecting using the service account private key ? (Json file)
Follow these steps (working example in C#)
After you create a Dialogflow agent go to the agent's settings --> General --> click on the Service Account link
You will be sent to to google cloud platform where you can create a service account
After you create a service account, there will be an option to create a KEY, create it and download the (JSON) format of it
This key will be used to connect from your C# project to the Dialogflow agent
Install Google.Cloud.Dialogflow.V2 package in your project
Create for example a Dialogflow manager class (check below for an example)
public class DialogflowManager {
private string _userID;
private string _webRootPath;
private string _contentRootPath;
private string _projectId;
private SessionsClient _sessionsClient;
private SessionName _sessionName;
public DialogflowManager(string userID, string webRootPath, string contentRootPath, string projectId) {
_userID = userID;
_webRootPath = webRootPath;
_contentRootPath = contentRootPath;
_projectId = projectId;
SetEnvironmentVariable();
}
private void SetEnvironmentVariable() {
try {
Environment.SetEnvironmentVariable("GOOGLE_APPLICATION_CREDENTIALS", _contentRootPath + "\\Keys\\{THE_DOWNLOADED_JSON_FILE_HERE}.json");
} catch (ArgumentNullException) {
throw;
} catch (ArgumentException) {
throw;
} catch (SecurityException) {
throw;
}
}
private async Task CreateSession() {
// Create client
_sessionsClient = await SessionsClient.CreateAsync();
// Initialize request argument(s)
_sessionName = new SessionName(_projectId, _userID);
}
public async Task < QueryResult > CheckIntent(string userInput, string LanguageCode = "en") {
await CreateSession();
QueryInput queryInput = new QueryInput();
var queryText = new TextInput();
queryText.Text = userInput;
queryText.LanguageCode = LanguageCode;
queryInput.Text = queryText;
// Make the request
DetectIntentResponse response = await _sessionsClient.DetectIntentAsync(_sessionName, queryInput);
return response.QueryResult;
}
}
And then this can be called like this for example to get detect Intents
DialogflowManager dialogflow = new DialogflowManager("{INSERT_USER_ID}",
_hostingEnvironment.WebRootPath,
_hostingEnvironment.ContentRootPath,
"{INSERT_AGENT_ID");
var dialogflowQueryResult = await dialogflow.CheckIntent("{INSERT_USER_INPUT}");
My service is register with azzure notification hub. And using my .net server API it push notification to particular device within particular time frame.
Everything goes right except when I try to send multiple push in same code it stuck with "BadRequest" except first one.
Below is the code
public static async void SendAzzurePushNotification()
{
for (int i = 0; i < 10; i++)
{
HttpStatusCode pushNotificationStatus = await CreateAndPushAsync("user_37");
Console.WriteLine(pushNotificationStatus);
}
}
static async Task<HttpStatusCode> CreateAndPushAsync(string tag)
{
HttpStatusCode pushNotificationStatus = HttpStatusCode.NotImplemented;
try
{
HttpResponseMessage response = null;
string uri = "<HUBURI>";
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("SharedAccessSignature", <SASTOKEN>);
client.DefaultRequestHeaders.Add("ServiceBusNotification-Format", "gcm");
client.DefaultRequestHeaders.Add("ServiceBusNotification-Tags", tag);
client.DefaultRequestHeaders.Add("x-ms-version", "2015-01");
response = await client.PostAsync(uri,
new StringContent("{\"data\":{\"message\":\"Notification Hub test notification\"}}", Encoding.UTF8, "application/json"));
pushNotificationStatus = response.StatusCode;
}
catch (Exception ex)
{
throw;
}
return pushNotificationStatus;
}
Above code give me Created status for first time and then BadRequest after that. If same api I call from client like postman. It work fine.
I also tried nuget package from azure notification hub, regarding which code is as below. Which solve my above issue but it won't return me any status code which I can have in my above code for success.
NotificationHubClient hub = NotificationHubClient.CreateClientFromConnectionString("<CONNECTIONSTRING>", "<HUB>");
NotificationOutcome outcome = await hub.SendGcmNativeNotificationAsync("{\"data\":{\"message\":\"Notification Hub test notification\"}}", "user_37");
Call send method with your tags and your notification-data
private static readonly string Endpoint = #"Your End Point";
private static readonly string HubName = #"You Hub Name";
private static NotificationHubClient Hub { get { return NotificationHubClient.CreateClientFromConnectionString(Endpoint, HubName); } }
public static async Task Send(string[] tags, object data)
{
try
{
string payload = string.Empty;
string json_gcm = string.Empty;
if (data.GetType() != typeof(string))
{
//If your notification data is of type
payload = JsonConvert.SerializeObject(data);
json_gcm = "{ \"data\" : " + payload + "}";
}
else
{
//If your notification data is simply is in string
payload = Convert.ToString(data);
json_gcm = "{ \"data\" : {\"message\":\"" + payload + "\"}}";
}
// Android
NotificationOutcome gcmOutcome = null;
gcmOutcome = await Hub.SendGcmNativeNotificationAsync(json_gcm, tags);
if (gcmOutcome != null)
{
if (!((gcmOutcome.State == NotificationOutcomeState.Abandoned) || (gcmOutcome.State == NotificationOutcomeState.Unknown)))
{
//Do code when notification successfully send to Android
}
}
}
catch (Exception ex)
{
//Do code when any exception occurred while sending notification
}
}
NotificationOutcomeState: Gives you status code in the form of enum that represent your notification has been successfully sent or not.
You may ignore if-else block as your need.
Try once may it help you
I am developing an app where I use the call httpclient.getasync(url).
This is working in UWP. Infact this code was working in windows 8 also.But when I tried today,It is giving weird exception(I didnot find anything in internet about this exception),Already spent lots of time.
Exception is Unable to cast object of type 'Windows.UI.Core.CoreDispatcher' to type 'System.Threading.IDispatcherQueue'
Here is my complete code.
public MainPage()
{
this.InitializeComponent();
getMarketList();
}
public async Task<string> GetUserPlayList(string url) // Get currents users all public playlists
{
try
{
HttpClient client = new HttpClient();
string url1 = url;
HttpResponseMessage response = await client.GetAsync(url1);
var res = response.Content;
return await response.Content.ReadAsStringAsync();
}
catch (Exception ex)
{
return null;
}
}
private ObservableCollection<food> foodData = new ObservableCollection<food>();
public async Task getMarketList()
{
string url = "I have a valid url";
string format = await GetUserPlayList(url);
var data = JsonConvert.DeserializeObject<ApiCallResponse>(format);
foreach (var temp in data.result)
{
foodData.Add(temp);
}
}
Note-This was working earlier in windows 8 also and I am using preview builds of windows 10 and visual studio 2015
I have a notification hub, and it, have a hub-namespace and it is almost full.
I'll create another hub, how do I programmatically know (Android), which one should I enter the user?
Android source code:
public class NotificationSettings {
public static String SenderId = "MyFirebaseSenderId";
public static String HubName = "myhub-hub";
public static String HubListenConnectionString = "Endpoint=sb://myapp.serv.../;SharedAccessKeyName=D..ure;SharedAccessKey=K..t/n8I/X..=";
}
RegistrationIntent:
public class RegistrationIntentService extends IntentService {
private static final String TAG = "RegIntentService";
private NotificationHub hub;
public RegistrationIntentService() {
super(TAG);
}
public ApplicationUtils getApplicationUtils() {
return (ApplicationUtils) getApplication();
}
#Override
protected void onHandleIntent(Intent intent) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String resultString = null;
String regID = null;
String storedToken = null;
String tag = null;
try {
tag ="_UserId:" + getApplicationUtils().getUsuario().Id;
} catch (Exception e){
return;
}
try {
if(FirebaseInstanceId.getInstance() == null){
FirebaseApp.initializeApp(this);
}
String FCM_token = FirebaseInstanceId.getInstance().getToken();
SaveSharedPreferences.setFCM(getApplicationContext(),FCM_token);
Log.d(TAG, "FCM Registration Token: " + FCM_token);
// Storing the registration id that indicates whether the generated token has been
// sent to your server. If it is not stored, send the token to your server,
// otherwise your server should have already received the token.
if (((regID=sharedPreferences.getString("registrationID", null)) == null)){
NotificationHub hub = new NotificationHub(NotificationSettings.HubName,
NotificationSettings.HubListenConnectionString, this);
Log.d(TAG, "Attempting a new registration with NH using FCM token : " + FCM_token);
regID = hub.register(FCM_token, tag).getRegistrationId();
// If you want to use tags...
// Refer to : https://azure.microsoft.com/en-us/documentation/articles/notification-hubs-routing-tag-expressions/
// regID = hub.register(token, "tag1,tag2").getRegistrationId();
resultString = "New NH Registration Successfully - RegId : " + regID;
Log.d(TAG, resultString);
sharedPreferences.edit().putString("registrationID", regID ).apply();
sharedPreferences.edit().putString("FCMtoken", FCM_token ).apply();
}
// Check if the token may have been compromised and needs refreshing.
else if (!((storedToken=sharedPreferences.getString("FCMtoken", "")).equals(FCM_token))) {
NotificationHub hub = new NotificationHub(NotificationSettings.HubName,
NotificationSettings.HubListenConnectionString, this);
Log.d(TAG, "NH Registration refreshing with token : " + FCM_token);
regID = hub.register(FCM_token, tag).getRegistrationId();
// If you want to use tags...
// Refer to : https://azure.microsoft.com/en-us/documentation/articles/notification-hubs-routing-tag-expressions/
// regID = hub.register(token, "tag1,tag2").getRegistrationId();
resultString = "New NH Registration Successfully - RegId : " + regID;
Log.d(TAG, resultString);
sharedPreferences.edit().putString("registrationID", regID ).apply();
sharedPreferences.edit().putString("FCMtoken", FCM_token ).apply();
}
else {
resultString = "Previously Registered Successfully - RegId : " + regID;
}
} .............................................
Now, it follows my downend code below, I do not know if it would be important in this case. But, it is developed in C # .Net:
public static async void sendPushNotification(ApiController controller, DataObjects.Notification notification)
{
// Get the settings for the server project.
HttpConfiguration config = controller.Configuration;
MobileAppSettingsDictionary settings =
controller.Configuration.GetMobileAppSettingsProvider().GetMobileAppSettings();
// Get the Notification Hubs credentials for the Mobile App.
string notificationHubName = settings.NotificationHubName;
string notificationHubConnection = settings
.Connections[MobileAppSettingsKeys.NotificationHubConnectionString].ConnectionString;
// Create a new Notification Hub client.
NotificationHubClient hub = NotificationHubClient.CreateClientFromConnectionString(notificationHubConnection, notificationHubName);
// Android payload
JObject data = new JObject();
data.Add("Id", notification.Id);
data.Add("Descricao", notification.Descricao);
...
//alteração com a colocação da tag priority em caso de erro teste sem
var androidNotificationPayload = "{ \"data\" : {\"message\":" + JsonConvert.SerializeObject(data) + "}}";
try
{
// Send the push notification and log the results.
String tag = "_UserId:"+notification.Id_usuario;
//var result = await hub.SendGcmNativeNotificationAsync(androidNotificationPayload);
var result = await hub.SendGcmNativeNotificationAsync(androidNotificationPayload, tag);
// Write the success result to the logs.
config.Services.GetTraceWriter().Info(result.State.ToString());
}
catch (System.Exception ex)
{
// Write the failure result to the logs.
config.Services.GetTraceWriter().Error(ex.Message, null, "Push.SendAsync Error");
}
}
I need a lot of help on this issue.
Thank you so much for this.
According to your description, I suggest you could write a api method which will insert new user to the notification hub(not on the client side) after checking the registrations is full or not.
We could use NotificationHubClient.GetAllRegistrationsAsync Method to get all AllRegistrations to local. Then we could count its number.
After checking successfully, then we will check enter user to which hub.
The workflow is:
New user registered:
Client: Send the user information to server web api method
Server: Check the notification hub is full(By calling NotificationHubClient.GetAllRegistrationsAsync or directly registered user if it failed registered into new hub)
Besides, notification hub provides different pricing tier.
I suggest you could consider scaling up your pricing tier to support multiple active devices.
I am following the Windows Live SDK 5.6 example codes and have my own simple app trying to login OneDrive. With my Microsoft account given step by step, seems everything is fine, however, i always get System.NullReferenceException, when application goes to this page again, when i click the single button:
private async void signInBtn_Click(object sender, RoutedEventArgs e)
{
try
{
authClient = new LiveAuthClient();
System.Diagnostics.Debug.WriteLine("authClient = " + authClient);
loginResult = await authClient.LoginAsync(new string[] { "wl.signin", "wl.skydrive", "wl.skydrive_update", "wl.photos" });
if (loginResult.Status == LiveConnectSessionStatus.Connected)
{
liveClient = new LiveConnectClient(loginResult.Session);
var meResult = await liveClient.GetAsync("me");
System.Diagnostics.Debug.WriteLine(meResult.Result["name"].ToString() + ", " + "You have logged in OneDrive!");
}
}
catch (LiveAuthException authExp)
{
System.Diagnostics.Debug.WriteLine("LiveAuthException = " + authExp.ToString());
}
catch (LiveConnectException connExp)
{
System.Diagnostics.Debug.WriteLine("LiveConnectException = " + connExp.ToString());
}
}
it throws exception at this line:
loginResult = await authClient.LoginAsync(new string[] { "wl.signin", "wl.skydrive", "wl.skydrive_update", "wl.photos" });
Anything goes wrong in my codes? Even referred to the sample codes?
Try passing a list instead of a String array:
public static async Task<LiveLoginResult> LoginAsync()
{
List<String> oneDriveScopes = new List<String>() { "wl.signin", "wl.basic", "wl.skydrive_update" };
LiveAuthClient authClient = new LiveAuthClient();
LiveLoginResult authResult;
try
{
authResult = await authClient.LoginAsync(oneDriveScopes);
}
catch
{
return null;
}
return authResult;
}
I finally managed to get the code working: before running the code, i have to associate my app in the windows store, so that in the project, there is one file called Package.StoreAssociation.xml generated.
With authentication, my live account information is retrieved correctly and no exception any more.