public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Items.Add(Item);
await _context.SaveChangesAsync();
//use your own private and public key:
//generator here: https://web-push-codelab.glitch.me/
var vapidDetails = new VapidDetails(@"<youremail>",
"<publickey>",
"<privatekey>");
var pushSubscriptions = await _context.PushSubscriptions.ToListAsync();
var webPushClient = new WebPushClient();
var tasks = new List <Task>();
foreach (var pushSubscription in pushSubscriptions)
{
var webPushSubscription = new WebPush.PushSubscription(pushSubscription.EndPoint, pushSubscription.P256dh, pushSubscription.Auth);
tasks.Add(webPushClient.SendNotificationAsync(webPushSubscription, "test", vapidDetails));
}
await Task.WhenAll(tasks);
return(RedirectToPage("./Index"));
}
public async Task SendNotificationAsync(PushSubscriptionUser subscription, WebPushNotificationMessages message, CancellationToken cancellationToken)
{
var vapidDetails = new VapidDetails(this._options.Subject, this._options.PublicKey, this._options.PrivateKey);
PushSubscription pushSubscription = new WebPush.PushSubscription(subscription.Endpoint, subscription.P256DH, subscription.Auth);
//var payload = System.Text.Json.JsonSerializer.Serialize(message);
var settings = new JsonSerializerSettings();
settings.ContractResolver = new DefaultContractResolver {
NamingStrategy = new JsonLowerCaseNamingStrategy()
};;
var payload = JsonConvert.SerializeObject(message, settings);
try
{
await _pushClient.SendNotificationAsync(pushSubscription, payload, vapidDetails);
}
catch (WebPushException ex)
{
{
using (IStoreRepositoryAccessor pushstoreAccessor = _pushStoreAccessorProvider.GetStoreRepositoryAccessor())
{
subscription.DateEndTime = DateTime.Now;
await pushstoreAccessor.StoreRepository.UpdateSubscriptionAsync(subscription);
}
_logger?.LogInformation("Subscription has expired or is no longer valid and has been removed.");
}
Console.Error.WriteLine("(WebPush) Error sending push notification: " + ex.Message);
}
}
public async Task SendNotificationAsync(WP.PushSubscription subscription, PushMessage message, string target)
{
_logger.LogInformation($"Sending VAPID push: {message.Content}: Image {_options.ImageUrl}");
var sub = new WebPush.PushSubscription(
subscription.Endpoint,
subscription.Keys["p256dh"],
subscription.Keys["auth"]
);
var vapid = new VapidDetails(_options.Subject, _options.PublicKey, _options.PrivateKey);
var payload = JsonConvert.SerializeObject(new {
notification = new {
title = message.Topic,
body = message.Content,
icon = _options.ImageUrl,
click_action = string.IsNullOrEmpty(target) ? _options.ClickUrl : target
}
});
var client = new WebPushClient();
try {
_logger.LogDebug($"VAPID: Push to {subscription.Endpoint}");
await client.SendNotificationAsync(sub, payload, vapid);
} catch (WebPushException ex) {
_logger.LogError($"ERROR in VAPID: {ex.Message}");
_logger.LogError($"{subscription.Endpoint}");
} catch (Exception ex) {
_logger.LogError($"ERROR in VAPID: {ex.Message}");
_logger.LogError($"{subscription.Endpoint}");
}
}
public void SendNotification(Subscription subscription, Notification payload)
{
var webPushSubscription = new WebPush.PushSubscription(
subscription.EndPoint,
subscription.Code,
subscription.Auth);
_pushClient.SendNotification(webPushSubscription, Newtonsoft.Json.JsonConvert.SerializeObject((WebPushAdapter)payload));
}
public async Task RunAsync(CancellationToken cancellationToken = default)
{
var subscriptions = await _dbContext.PushSubscriptions
.ToArrayAsync(cancellationToken)
.ConfigureAwait(false);
var teams = await _dbContext.Teams
.ToArrayAsync(cancellationToken)
.ConfigureAwait(false);
var webPushClient = new WebPushClient();
foreach (var sub in subscriptions)
{
if (string.IsNullOrWhiteSpace(sub.Data))
{
continue;
}
dynamic jsonObj = JsonConvert.DeserializeObject(sub.Data);
string pushEndpoint = (string)jsonObj.endpoint;
string p256Dh = (string)jsonObj.keys?.p256dh;
string auth = (string)jsonObj.keys?.auth;
if (string.IsNullOrWhiteSpace(auth))
{
continue;
}
string payload = CreatePayload(teams);
try
{
var subscription = new WebPush.PushSubscription(pushEndpoint, p256Dh, auth);
await webPushClient.SendNotificationAsync(subscription, payload, _vapidDetails);
}
catch (WebPushException e)
when(e.Message.Contains("no longer valid", StringComparison.OrdinalIgnoreCase))
{
_logger.LogWarning(e, "Remvoing invalid subscription.");
await RemoveSubscription(sub, cancellationToken)
.ConfigureAwait(false);
}
catch (WebPushException e)
{
_logger.LogError(e, "Unable to push notfications");
}
}
}
public void SendNotification(string payload)
{
var subscription = this.context.PushSubscription.FirstOrDefault(x => x.Id == 2);
var endpoint = subscription.Endpoint;
var p256dh = subscription.P256;
var auth = subscription.Auth;
//VapidDetails vapidDetails = VapidHelper.GenerateVapidKeys();
var subject = @"mailto:[email protected]";
var publicKey = "BME6-YvoCvVwtas9T87mOfqI5ZfuQJiQRq-GaHWUWk3T7xW36gFUNrltXDgRZReOaSwEXq__EIuhH8DU7eQ9ITI";
var privateKey = "4GCQq4G5QY8eQyPdngx18hfzSMrEuwmURBX1csaybPk";
var subs = new WebPush.PushSubscription(endpoint, p256dh, auth);
var vapid = new VapidDetails(subject, publicKey, privateKey);
pushClient.SendNotification(subs, payload, vapid);
}
public async Task <IActionResult> Post([FromBody] JObject body)
{
dynamic jsonObj = body;
string pushEndpoint = (string)jsonObj.endpoint;
string p256dh = (string)jsonObj.keys?.p256dh;
string auth = (string)jsonObj.keys?.auth;
string payload = JsonConvert.SerializeObject(new PushNotification
{
Title = "Nice! You are subscribed to push notifications.",
Options = new PushNotificationOptions
{
Icon = "favicon.ico",
}
});
string json = body.ToString();
await _dbContext.PushSubscriptions.AddAsync(new Data.PushSubscription
{
Data = json,
});
await _dbContext.SaveChangesAsync();
var webPushClient = new WebPushClient();
try
{
var subscription = new PushSubscription(pushEndpoint, p256dh, auth);
await webPushClient.SendNotificationAsync(subscription, payload, _vapidDetails);
}
catch (WebPushException exception)
{
Console.WriteLine("Http STATUS code" + exception.StatusCode);
}
return(Ok());
}
public void Broadcast(string message)
{
var devices = _context.Devices.ToList();
foreach (var device in devices)
{
try
{
string vapidPublicKey = _configuration.GetSection("VapidKeys")["PublicKey"];
string vapidPrivateKey = _configuration.GetSection("VapidKeys")["PrivateKey"];
var pushSubscription = new PushSubscription(device.PushEndpoint, device.PushP256DH, device.PushAuth);
var vapidDetails = new VapidDetails("mailto:[email protected]", vapidPublicKey, vapidPrivateKey);
_webPushClient.SendNotification(pushSubscription, message, vapidDetails);
}
catch (Exception ex)
{
_logger.LogError(ex.StackTrace, ex);
}
}
}
/// <summary>
/// Handle Web Push responses.
/// </summary>
/// <param name="response"></param>
/// <param name="subscription"></param>
private static void HandleResponse(HttpResponseMessage response, PushSubscription subscription)
{
// Successful
if (response.IsSuccessStatusCode)
{
return;
}
// Error
var responseCodeMessage = @"Received unexpected response code: " + (int)response.StatusCode;
switch (response.StatusCode)
{
case HttpStatusCode.BadRequest:
responseCodeMessage = "Bad Request";
break;
case HttpStatusCode.RequestEntityTooLarge:
responseCodeMessage = "Payload too large";
break;
case (HttpStatusCode)429:
responseCodeMessage = "Too many request";
break;
case HttpStatusCode.NotFound:
case HttpStatusCode.Gone:
responseCodeMessage = "Subscription no longer valid";
break;
}
var details = response.Content?.ReadAsStringAsync().GetAwaiter().GetResult();
var message = string.IsNullOrEmpty(details)
? responseCodeMessage
: $"{responseCodeMessage}. Details: {details}";
throw new WebPushException(message, subscription, response);
}
public async Task SendNotificationAsync(Lib.Net.Http.WebPush.PushSubscription subscription, PushMessage message, CancellationToken cancellationToken)
{
try
{
WebPush.PushSubscription sub = new WebPush.PushSubscription();
foreach (KeyValuePair <string, string> en in subscription.Keys)
{
Console.WriteLine("Keys and Values: ");
Console.WriteLine(en.Key + " : " + en.Value);
}
sub.Auth = subscription.Keys["auth"];
sub.Endpoint = subscription.Endpoint;
sub.P256DH = subscription.Keys["p256dh"];
await _webPushClient.SendNotificationAsync(sub, message.Content, vapidDetails);
}
catch (Exception ex)
{
await HandlePushMessageDeliveryExceptionAsync(ex, subscription);
}
}
/// <summary>
/// To get a request without sending a push notification call this method.
///
/// This method will throw an ArgumentException if there is an issue with the input.
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="options">Options for the GCM API key and vapid keys can be passed in if they are unique for each notification.</param>
/// <returns>A HttpRequestMessage object that can be sent.</returns>
public HttpRequestMessage GenerateRequestDetails(PushSubscription subscription, string payload, Dictionary <string, object> options = null)
{
if (!Uri.IsWellFormedUriString(subscription.Endpoint, UriKind.Absolute))
{
throw new ArgumentException(@"You must pass in a subscription with at least a valid endpoint");
}
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, subscription.Endpoint);
if (!String.IsNullOrEmpty(payload) && (String.IsNullOrEmpty(subscription.Auth) || String.IsNullOrEmpty(subscription.P256DH)))
{
throw new ArgumentException(@"To send a message with a payload, the subscription must have 'auth' and 'p256dh' keys.");
}
string currentGCMAPiKey = _gcmAPIKey;
VapidDetails currentVapidDetails = _vapidDetails;
int timeToLive = DefaultTtl;
Dictionary <string, object> extraHeaders = new Dictionary <string, object>();
if (options != null)
{
List <string> validOptionsKeys = new List <string> {
"headers", "gcmAPIKey", "vapidDetails", "TTL"
};
foreach (string key in options.Keys)
{
if (!validOptionsKeys.Contains(key))
{
throw new ArgumentException(key + " is an invalid options. The valid options are" + String.Join(",", validOptionsKeys));
}
}
if (options.ContainsKey("headers"))
{
Dictionary <string, object> headers = options["headers"] as Dictionary <string, object>;
if (headers == null)
{
throw new ArgumentException("options.headers must be of type Dictionary<string,object>");
}
extraHeaders = headers;
}
if (options.ContainsKey("gcmAPIKey"))
{
string gcmAPIKey = options["gcmAPIKey"] as string;
if (gcmAPIKey == null)
{
throw new ArgumentException("options.gcmAPIKey must be of type string");
}
currentGCMAPiKey = gcmAPIKey;
}
if (options.ContainsKey("vapidDetails"))
{
VapidDetails vapidDetails = options["vapidDetails"] as VapidDetails;
if (vapidDetails == null)
{
throw new ArgumentException("options.vapidDetails must be of type VapidDetails");
}
currentVapidDetails = vapidDetails;
}
if (options.ContainsKey("TTL"))
{
int?ttl = options["TTL"] as int?;
if (ttl == null)
{
throw new ArgumentException("options.TTL must be of type int");
}
//at this stage ttl cannot be null.
timeToLive = (int)ttl;
}
}
string cryptoKeyHeader = null;
request.Headers.Add("TTL", timeToLive.ToString());
foreach (KeyValuePair <string, object> header in extraHeaders)
{
request.Headers.Add(header.Key, header.Value.ToString());
}
if (!String.IsNullOrEmpty(payload))
{
if (String.IsNullOrEmpty(subscription.P256DH) || String.IsNullOrEmpty(subscription.Auth))
{
throw new ArgumentException(@"Unable to send a message with payload to this subscription since it doesn't have the required encryption key");
}
EncryptionResult encryptedPayload = Encryptor.Encrypt(subscription.P256DH, subscription.Auth, payload);
request.Content = new ByteArrayContent(encryptedPayload.Payload);
request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
request.Content.Headers.ContentLength = encryptedPayload.Payload.Length;
request.Content.Headers.ContentEncoding.Add("aesgcm");
request.Headers.Add("Encryption", "salt=" + encryptedPayload.Base64EncodeSalt());
cryptoKeyHeader = @"dh=" + encryptedPayload.Base64EncodePublicKey();
}
else
{
request.Content = new ByteArrayContent(new byte[0]);
request.Content.Headers.ContentLength = 0;
}
bool isGCM = subscription.Endpoint.StartsWith(@"https://android.googleapis.com/gcm/send");
if (isGCM)
{
if (!String.IsNullOrEmpty(currentGCMAPiKey))
{
request.Headers.TryAddWithoutValidation("Authorization", "key=" + currentGCMAPiKey);
}
}
else if (currentVapidDetails != null)
{
Uri uri = new Uri(subscription.Endpoint);
string audience = uri.Scheme + "://" + uri.Host;
Dictionary <string, string> vapidHeaders = VapidHelper.GetVapidHeaders(audience, currentVapidDetails.Subject, currentVapidDetails.PublicKey, currentVapidDetails.PrivateKey);
//request.Headers.Add(@"Authorization", vapidHeaders["Authorization"]);
request.Headers.Authorization = new AuthenticationHeaderValue(vapidHeaders["Authorization"].Split(" ")[0], vapidHeaders["Authorization"].Split(" ")[1]);
if (String.IsNullOrEmpty(cryptoKeyHeader))
{
cryptoKeyHeader = vapidHeaders["Crypto-Key"];
}
else
{
cryptoKeyHeader += @";" + vapidHeaders["Crypto-Key"];
}
}
request.Headers.Add("Crypto-Key", cryptoKeyHeader);
return(request);
}
/// <summary>
/// To get a request without sending a push notification call this method.
/// This method will throw an ArgumentException if there is an issue with the input.
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="options">
/// Options for the GCM API key and vapid keys can be passed in if they are unique for each
/// notification.
/// </param>
/// <returns>A HttpRequestMessage object that can be sent.</returns>
public HttpRequestMessage GenerateRequestDetails(
PushSubscription subscription,
string payload,
Dictionary <string, object> options = null,
string googleFirebaseAppId = null,
string googleFirebaseSenderId = null)
{
if (!Uri.IsWellFormedUriString(subscription.Endpoint, UriKind.Absolute))
{
throw new ArgumentException(@"You must pass in a subscription with at least a valid endpoint");
}
var request = new HttpRequestMessage(HttpMethod.Post, subscription.Endpoint);
if (!string.IsNullOrEmpty(payload) && (string.IsNullOrEmpty(subscription.Auth) ||
string.IsNullOrEmpty(subscription.P256DH)))
{
throw new ArgumentException(
@"To send a message with a payload, the subscription must have 'auth' and 'p256dh' keys.");
}
var currentGcmApiKey = _gcmApiKey;
var currentVapidDetails = _vapidDetails;
var timeToLive = DefaultTtl;
var extraHeaders = new Dictionary <string, object>();
if (options != null)
{
var validOptionsKeys = new List <string> {
"headers", "gcmAPIKey", "vapidDetails", "TTL"
};
foreach (var key in options.Keys)
{
if (!validOptionsKeys.Contains(key))
{
throw new ArgumentException(key + " is an invalid options. The valid options are" +
string.Join(",", validOptionsKeys));
}
}
if (options.ContainsKey("headers"))
{
var headers = options["headers"] as Dictionary <string, object>;
if (headers == null)
{
throw new ArgumentException("options.headers must be of type Dictionary<string,object>");
}
extraHeaders = headers;
}
if (options.ContainsKey("gcmAPIKey"))
{
var gcmApiKey = options["gcmAPIKey"] as string;
if (gcmApiKey == null)
{
throw new ArgumentException("options.gcmAPIKey must be of type string");
}
currentGcmApiKey = gcmApiKey;
}
if (options.ContainsKey("vapidDetails"))
{
var vapidDetails = options["vapidDetails"] as VapidDetails;
if (vapidDetails == null)
{
throw new ArgumentException("options.vapidDetails must be of type VapidDetails");
}
currentVapidDetails = vapidDetails;
}
if (options.ContainsKey("TTL"))
{
var ttl = options["TTL"] as int?;
if (ttl == null)
{
throw new ArgumentException("options.TTL must be of type int");
}
//at this stage ttl cannot be null.
timeToLive = (int)ttl;
}
}
string cryptoKeyHeader = null;
request.Headers.Add("TTL", timeToLive.ToString());
foreach (var header in extraHeaders)
{
request.Headers.Add(header.Key, header.Value.ToString());
}
if (!string.IsNullOrEmpty(payload))
{
if (string.IsNullOrEmpty(subscription.P256DH) || string.IsNullOrEmpty(subscription.Auth))
{
throw new ArgumentException(
@"Unable to send a message with payload to this subscription since it doesn't have the required encryption key");
}
var encryptedPayload = Encryptor.Encrypt(subscription.P256DH, subscription.Auth, payload);
request.Content = new ByteArrayContent(encryptedPayload.Payload);
request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
request.Content.Headers.ContentLength = encryptedPayload.Payload.Length;
request.Content.Headers.ContentEncoding.Add("aesgcm");
request.Headers.Add("Encryption", "salt=" + encryptedPayload.Base64EncodeSalt());
cryptoKeyHeader = @"dh=" + encryptedPayload.Base64EncodePublicKey();
}
else
{
request.Content = new ByteArrayContent(new byte[0]);
request.Content.Headers.ContentLength = 0;
}
var uri = new Uri(subscription.Endpoint);
var audience = uri.Scheme + @"://" + uri.Host;
var vapidHeaders = VapidHelper.GetVapidHeaders(audience, currentVapidDetails.Subject, currentVapidDetails.PublicKey, currentVapidDetails.PrivateKey);
var serverKey = string.Format("key={0}", googleFirebaseAppId);
var senderId = string.Format("id={0}", googleFirebaseSenderId);
if (audience.StartsWith(@"https://updates.push.services.mozilla.com"))
{
request.Headers.Add(@"Authorization", vapidHeaders["Authorization"]);
}
else
{
request.Headers.TryAddWithoutValidation("Authorization", serverKey);
request.Headers.TryAddWithoutValidation("Sender", senderId);
}
var isGcm = subscription.Endpoint.StartsWith(@"https://fcm.googleapis.com/fcm/send");
if (!isGcm && currentVapidDetails != null)
{
if (string.IsNullOrEmpty(cryptoKeyHeader))
{
cryptoKeyHeader = vapidHeaders["Crypto-Key"];
}
else
{
cryptoKeyHeader += @";" + vapidHeaders["Crypto-Key"];
}
}
request.Headers.Add("Crypto-Key", cryptoKeyHeader);
return(request);
}
public async Task Send()
{
var vapidDetails = new VapidDetails(_webPushNotificationSettings.Subject, _webPushNotificationSettings.PublicKey, _webPushNotificationSettings.PrivateKey);
var webPushClient = new WebPushClient();
foreach (var pushUser in _pushUsers)
{
var pushSubscription = pushUser.PushSubscription;
var subscription = new WebPush.PushSubscription(pushSubscription.Endpoint, pushSubscription.Keys.P256dh, pushSubscription.Keys.Auth);
foreach (var roadWay in pushUser.RoadWays)
{
var previousRoadWay = _lastSentNotifications.FirstOrDefault(l => l.PushSubscription.Endpoint == pushUser.PushSubscription.Endpoint).RoadWays.FirstOrDefault(r => r.HmLocation == roadWay.HmLocation);
if (JsonConvert.SerializeObject(roadWay) == JsonConvert.SerializeObject(previousRoadWay))
{
continue;
}
foreach (var subscribedVms in roadWay.VariableMessageSigns)
{
var id = subscribedVms.Id;
var liveVms = _liveData.SingleOrDefault(l => l.Id == id);
var sign = liveVms != null ? liveVms.Sign : "unknown";
subscribedVms.Sign = Reformat(id, sign);
}
var body = string.Join(' ', roadWay.VariableMessageSigns);
string image = null;
var lastSign = roadWay.VariableMessageSigns.Last().Sign;
var isLaneSpecific = !(lastSign.StartsWith("TP|") || lastSign.StartsWith("live/"));
if (!isLaneSpecific)
{
if (lastSign.StartsWith("TP|"))
{
body = lastSign;
}
else if (lastSign.StartsWith("live/"))
{
image = string.Format("{0}/{1}", _webUrl, lastSign);
}
}
var notification = new Notification
{
Title = roadWay.HmLocation,
Icon = "images/xanland.png",
Body = isLaneSpecific || lastSign.StartsWith("TP|") ? body : "Klik op de afbeelding voor de volledige beeldstand.",
Image = isLaneSpecific ? null : image,
Tag = isLaneSpecific ? string.Format("{0}={1}@{2}", roadWay.HmLocation, DateTime.UtcNow.Hour, DateTime.UtcNow.Day) : roadWay.HmLocation,
Data = new NotificationData
{
CoordinatesUrl = roadWay.Coordinates != null?string.Format("{0}/?lat={1}&lon={2}&zoom=17", _webUrl, roadWay.Coordinates.X.ToString().Replace(',', '.'), roadWay.Coordinates.Y.ToString().Replace(',', '.')) : null,
},
Actions = new List <NotificationAction>
{
new NotificationAction
{
Action = "go-to-location",
Icon = "images/xanland.png",
Title = "Open locatie"
}
},
HmLocation = roadWay.HmLocation,
LanesShownSign = string.Join(' ', roadWay.VariableMessageSigns),
DripShownSign = false
};
try
{
await webPushClient.SendNotificationAsync(subscription, JsonConvert.SerializeObject(notification, new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
}), vapidDetails);
}
catch (Exception) { }
}
}
PostProcess();
}
/// <summary>
/// To send a push notification call this method with a subscription, optional payload and any options
/// Will exception is unsuccessful
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="gcmAPIKey">The GCM API key</param>
public void SendNotification(PushSubscription subscription, string payload, string gcmAPIKey)
{
SendNotificationAsync(subscription, payload, gcmAPIKey).Wait();
}
/// <summary>
/// To send a push notification call this method with a subscription, optional payload and any options
/// Will exception is unsuccessful
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="options">Options for the GCM API key and vapid keys can be passed in if they are unique for each notification.</param>
public void SendNotification(PushSubscription subscription, string payload = null, Dictionary <string, object> options = null)
{
SendNotificationAsync(subscription, payload, options).Wait();
}
/// <summary>
/// To send a push notification call this method with a subscription, optional payload and any options
/// Will exception is unsuccessful
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="vapidDetails">The vapid details for the notification.</param>
public void SendNotification(PushSubscription subscription, string payload, VapidDetails vapidDetails)
{
SendNotificationAsync(subscription, payload, vapidDetails).Wait();
}
public WebPushException(string message, PushSubscription pushSubscription, HttpResponseMessage responseMessage) : base(message)
{
PushSubscription = pushSubscription;
HttpResponseMessage = responseMessage;
}
public WebPushException(string message, HttpStatusCode statusCode, HttpResponseHeaders headers, PushSubscription pushSubscription) : base(message)
{
StatusCode = statusCode;
Headers = headers;
PushSubscription = pushSubscription;
}
/// <summary>
/// To send a push notification call this method with a subscription, optional payload and any options
/// Will exception if unsuccessful
/// </summary>
/// <param name="subscription">The PushSubscription you wish to send the notification to.</param>
/// <param name="payload">The payload you wish to send to the user</param>
/// <param name="options">
/// Options for the GCM API key and vapid keys can be passed in if they are unique for each
/// notification.
/// </param>
public void SendNotification(PushSubscription subscription, string payload = null,
Dictionary <string, object> options = null)
{
SendNotificationAsync(subscription, payload, options).ConfigureAwait(false).GetAwaiter().GetResult();
}
