I am using Twilio Flex to support a call center. I have a TaskRouter workflow set up where Task Reservation Timeout is set to 120 seconds. In its filter, I've created two routing steps. The first one finds matching workers in the main queue and has a timeout of 120 seconds. After 120 seconds, it should move to Call Forward Queue. In the call forward queue, no workers exist (target worker expression: 1==2). I'm catching all these events with a "trEventListener" function. Once a task is moved into the Call Forward queue, I call the "callForward" function which uses twiml.dial() to connect the call to an external number. I also change this task's status to "canceled" with a custom reason so I can track it in flex insights. I am using the guide in this link to form my logic: https://support.twilio.com/hc/en-us/articles/360021082934-Implementing-Voicemail-with-Twilio-Flex-TaskRouter-and-WFO.
Call forwarding is working fine but according to Flex insights, there are some calls that get handled after 120 seconds (between 120 - 300 seconds). Ideally, these should be forwarded as well. There is also no error logged for me to track down why this is happening to only a handful of calls.
Furthermore, in some cases, when I try to change the task status to cancel with my custom reason, it spits out the following error: Cannot cancel task because it is not pending or reserved. In other cases, it works fine. It's again hard to figure out why it's selectively working and not consistent in its behavior.
Here is the function code.
trEventListener.js:
exports.handler = function(context, event, callback) {
const client = context.getTwilioClient();
let task = '';
let workspace = '';
console.log(`__[trEventStream]__: Event recieved of type: ${event.EventType}`);
// setup an empty success response
let response = new Twilio.Response();
response.setStatusCode(204);
// switch on the event type
switch(event.EventType) {
case 'task-queue.entered':
// ignore events that are not entering the 'Call Forward' TaskQueue
if (event.TaskQueueName !== 'Call Forward') {
console.log(`__[trEventStream]__: Entered ${event.TaskQueueName} queue - no forwarding required!`);
return callback(null, response);
}
console.log(`__[trEventStream]__: entered ${event.TaskQueueName} queue - forwarding call!`);
task = event.TaskSid;
workspace = event.WorkspaceSid;
const ta = JSON.parse(event.TaskAttributes);
const callSid = ta.call_sid;
let url = `https://${context.DOMAIN_NAME}/forwardCall`;
// redirect call to forwardCall function
client.calls(callSid).update({
method: 'POST',
url: encodeURI(url),
}).then(() => {
console.log(`__[trEventStream]__: [SUCCESS] ~> Task with id ${task} forwarded to external DID`);
// change task status to canceled so it doesn't appear in flex or show up as a pending task
client.taskrouter.workspaces(workspace)
.tasks(task)
.update({
assignmentStatus: 'canceled',
reason: 'Call forwarded'
})
.then(task => {
console.log(`__[trEventStream]__: [SUCCESS] ~> Task canceled`);
return callback(null, response);
}).catch(err => {
console.log(`__[trEventStream]__: [ERROR] ~> Task not marked complete: `, err);
// doesn't warrant reponse 500 since call still forwarded :)
return callback(null, response);
});
}).catch(err => {
console.log(`__[trEventStream]__: [ERROR] ~> Task failed to forward to external DID: `, err);
response.setStatusCode(500);
return callback(err, response);
});
break;
default:
return callback(null, response);
}
};
callForward.js:
exports.handler = function(context, event, callback) {
console.log(`forwarding call`);
// set-up the variables that this Function will use to forward a phone call using TwiML
// REQUIRED - you must set this
let phoneNumber = event.PhoneNumber || context.NUMBER;
// OPTIONAL
let callerId = event.CallerId || null;
// OPTIONAL
let timeout = event.Timeout || null;
// OPTIONAL
let allowedCallers = event.allowedCallers || [];
let allowedThrough = true;
if (allowedCallers.length > 0) {
if (allowedCallers.indexOf(event.From) === -1) {
allowedThrough = false;
}
}
// generate the TwiML to tell Twilio how to forward this call
let twiml = new Twilio.twiml.VoiceResponse();
let dialParams = {};
if (callerId) {
dialParams.callerId = callerId;
}
if (timeout) {
dialParams.timeout = timeout;
}
if (allowedThrough) {
twiml.dial(dialParams, phoneNumber); // making call :)
}
else {
twiml.say('Sorry, you are calling from a restricted number. Good bye.');
}
// return the TwiML
callback(null, twiml);
};
Any kind of help and/or guidance will be appreciated.
Twilio developer evangelist here.
When you redirect a call from a task, its task is cancelled with the reason "redirected" so you don't need to cancel it yourself.
Your code was failing to update the task occasionally because of a race condition between your code and the task getting cancelled by Twilio.
I am running an NodeJS server with the following code to connect to the Hyperledger Runtime:
const BusinessNetworkConnection = require("composer-client")
.BusinessNetworkConnection;
this.businessNetworkConnection = new BusinessNetworkConnection();
this.CONNECTION_PROFILE_NAME = "hlfv1";
this.businessNetworkIdentifier = "testNetwork";
this.businessNetworkConnection
.connect(
this.CONNECTION_PROFILE_NAME,
this.businessNetworkIdentifier,
"admin",
"adminpwd"
)
.then(result => {
this.businessNetworkDefinition = result;
console.log("BusinessNetworkConnection: ", result);
})
.then(() => {
// Subscribe to events.
this.businessNetworkConnection.on("events", events => {
console.log("**********business event received**********", events);
});
})
// and catch any exceptions that are triggered
.catch(function(error) {
throw error;
});
I see data returned after the connection has been made in the result object and it is the correct network data that has been deployed.
However, when I submit transactions and made request VIA my generated REST APIs no events are seen by my server. In the Historian, I can see that events are emitted. Is there something else that I should be doing to see those events emitted by my transactions?
I tried same kind of test and I could receive events. I compared my test code and yours, and I found following difference:
this.bizNetworkConnection.on('events'
this.bizNetworkConnection.on('event'
I hope it helps.
I am trying to implement 'hold call' functionality into my system. I have looked at this question and some twilio docs, and recommended way to do this is to dequeue the call, which will automatically play the hold music, and then retrieve from queue when hold is complete(un-hold).
This works perfectly fine, when I have an incoming call from a mobile, to my twilio client, and I can dequeue the call, and all works fine.
However when I do it with the outgoing call from the twilio client to the mobile, if I update the call to issue dequeue instruction, I get to hear the hold music on the client side itself, and the phone gets disconnected. I suppose this is because I have set the client leg of the call on hold. So the question is how do I get the call sid for the mobile leg of the call.
I have tried querying CallResource by ParentCallId, but that does not return anything in the case of outgoing calls. Any ideas?
Call is initiated on the client with:
var params = {
To: num
};
console.log('Calling ' + num + '...');
Twilio.Device.connect(params);
The connect API callback uses a simple Dial verb.
Client code for saving callid on connect:
Twilio.Device.connect(function (conn) {
if (conn._direction === 'OUTGOING') {
$scope.outgoing_call_sid = conn.parameters.CallSid;
$scope.number = conn.message.To;
} else {
$scope.incoming_call_sid = conn.parameters.CallSid;
$scope.number = conn.parameters.From;
}
$scope.message = 'In call with ' + $scope.number;
$scope.status = 'InCall';
});
Client code on hold button click:
$scope.hold = function () {
$scope.status = 'Hold';
$scope.message = 'Putting on hold...';
if ($scope.outgoing_call_sid) {
return $http.get(serviceBase + 'api/twilio/hold?callid=' + $scope.outgoing_call_sid);
}
};
Server side Hold API call:
public IHttpActionResult Hold(string callid) { /
//callid = GetLegCallId(callid); //Try to replace with child call
CallResource.Update(new UpdateCallOptions(callid) { Url = ConfigurationManager.AppSettings["ngrokUrl"] + "/api/twilio/enqueue", Method = HttpMethod.Get });
return Ok();
}
Code for getting any child calls:
public string GetLegCallId(string callId)
{
var calls = CallResource.Read(new ReadCallOptions() { ParentCallSid = callId });
if (calls.GetEnumerator().Current != null)
return calls.GetEnumerator().Current.Sid;
}
My bad. Twilio wasnt the issue. Issue was with usage of calls.GetEnumerator().Current != null.
Should do MoveNext on the Enumerator, before Current will have a value. Resolved by doing that. Stupid:(
I am trying to get real time feed updates using the Pubsubhubbup and Laravel, i have created 2 functions one for subscribe and the other one is a callback function.
when the subscribe function called it worked and the callback function receives a confirmation from the hub and respond with the hub_challenge code, all this works OK but the callback function doesn't receive any feed updates after that although it should receive it from the hub when there are updates but this is not happen !!
can you help to find what is the problem ??
thanks for your time.
the functions
public function subscribe(Feed $feed)
{
$hub_url = "http://pubsubhubbub.appspot.com";
$callback_url = url('feed/getFeedUpdates');
$subscriber = new Subscriber($hub_url, $callback_url);
$subscriber->subscribe($feed->feed_url);
Flash::success('Feed has been saved.');
return redirect('feed');
}
public function getFeedUpdates(Request $request)
{
// Subscribe Confirmation
if ($request->has('hub_mode') && $request->hub_mode == 'subscribe') {
$response = new Response($request->hub_challenge, 200);
$response->header('Content-Type', 'text/plain');
return $response;
} else { // Receive Updates
$updates = file_get_contents("php://input");
// put the updates to the database
}
}
I have spent lot of time to find correct cordova plugin for parse push notifications for both Android & iOS platforms.
My requirements are:
To receive parse push notification (in both android & iOS)
Able to store all the incoming push notifications in mobile local storage Sqlite.
I have tried all the below parse push cordova plugins for both Android & iOS platforms.
https://github.com/avivais/phonegap-parse-plugin
https://github.com/taivo/parse-push-plugin
https://github.com/campers/parse-push-plugin
https://github.com/manishiitg/parse-push-plugin
For Android: All the above plugins are working perfectly to fulfill my above mentioned requirements.
For iOS: Only 1st plugin i.e https://github.com/avivais/phonegap-parse-plugin is working. And that too i was not able to save the notifications in local storage sqlite. That means only my 1st requirement is fulfilled but not my 2nd requirement.
All the github pages of remaining plugins (i.e 2nd, 3rd, 4th) states that:
"Please note that I've only worked on the Android aspect of this fork. The iOS side is not yet up to date."
Is there any plugin which will work for both Android & iOS platforms to fulfill my 2 requirements?
(or)
If there is no common plugin for both the platforms, then how can I store the incoming plugins in iOS sqlite?
Please help me. Thanks in advance.
I happen to maintain https://github.com/taivo/parse-push-plugin
It looks like you caught my fork at its infancy. I picked it up when the upstream fork seemed stagnant for a while and at that time I was only addressing the Android aspect. Since then I've provided full iOS support. And it works for parse-server as well as the out-going parse.com. I also did one better and made installation just a matter of
cordova add https://github.com/taivo/parse-push-plugin
and writing a few config.xml tags to indicate server url, and app id.
That should take out the big pain of manually messing with Android Manifest, Java, and Objective C when setting up the plugin.
It should now meet or exceed your requirement. To receive push notification and store in sqlite, all you have to do is set an event handler in javascript. Be sure to wrap it with some sort of device ready or platform ready event handler to ensure the plugin has properly loaded.
$ionicPlatform.ready(function(){
if(window.ParsePushPlugin){
ParsePushPlugin.on('receivePN', function(pn){
console.log('yo i got this notif:' + JSON.stringify(pn) );
//
// do your sqlite storage here
//
});
}
});
You just might be interested in the Azure Push Notifications. It combines both Push notification services so you can send messages to both devices from one central point.
I quote:
Notification Hubs A scalable, cross-platform solution for sending push
notifications to mobile devices, Notification Hubs works well with
Cordova apps. Notification Hubs manages the registrations with each
PNS. More important, Notification Hubs lets you create template
registrations so you can send messages to all registered devices,
regardless of platform, with only a single line of code. You can also
use tags to send targeted notifications only to devices with specific
registrations. For more information about Notification Hubs, see the
Azure Web site at aka.ms/nkn4n4.
Here i have a helper class for registering your device with the pushnotification service. For sending push notifications, you can use an azure portal and send styled push notifications in json format.
var Pushman = {
Initialize: function (hubConnString, hubName, gcmSenderId, callbackRegistered, callbackUnRegistered, callbackInlineNotification, callbackBackgroundNotification, callbackError) {
//store connection and callback information on app startup for Push Registration later
Pushman.HubConnectionString = hubConnString;
Pushman.HubName = hubName;
Pushman.GcmSenderId = gcmSenderId;
//callbacks
Pushman.RegisteredCallback = callbackRegistered;
Pushman.UnRegisteredCallback = callbackUnRegistered;
Pushman.NotificationForegroundCallback = callbackInlineNotification;
Pushman.NotificationBackgroundCallback = callbackBackgroundNotification;
Pushman.ErrorCallback = callbackError;
},
RegisterForPushNotifications: function (tags) {
//setup Azure Notification Hub registration
Pushman.Hub = new WindowsAzure.Messaging.NotificationHub(Pushman.HubName, Pushman.HubConnectionString, Pushman.GcmSenderId);
Pushman.Hub.registerApplicationAsync(tags).then(Pushman.onRegistered, Pushman.onError);
//setup PushPlugin registration
Pushman.Push = window.PushNotification;
var push;
//register depending on device being run
if (device.platform == 'android' || device.platform == 'Android' || device.platform == "amazon-fireos") {
//android
push = Pushman.Push.init(
{ "android": { "senderID": Pushman.GcmSenderId } }
);
push.on('registration', Pushman.onRegistered);
push.on('notification', Pushman.onAndroidNotification);
push.on('error', Pushman.onError);
} else {
//iOS
push = Pushman.Push.init(
{ "ios": { "alert": "true", "badge": "true", "sound": "true" } }
);
push.on('registration', Pushman.onRegistered);
push.on('notification', Pushman.onIOSNotification);
push.on('error', Pushman.onError);
}
},
UnRegisterForPushNotifications: function () {
if (Pushman.Hub != null) {
//dont pass through error handler
//unreg azure
Pushman.Hub.unregisterApplicationAsync()
.then(Pushman.onUnRegistered, null);
//unreg native
Pushman.Push.unregister(Pushman.onUnRegistered, null);
}
},
onRegistered: function (msg) {
Pushman.log("Registered: " + msg.registrationId);
//only call callback if registrationId actually set
if (msg.registrationId.length > 0 && Pushman.RegisteredCallback != null) {
Pushman.RegisteredCallback(msg);
}
},
onUnRegistered: function () {
Pushman.log("UnRegistered");
if (Pushman.UnRegisteredCallback != null) {
Pushman.UnRegisteredCallback();
}
},
onInlineNotification: function (msg) {
Pushman.log("OnInlineNotification: " + msg);
if (Pushman.NotificationForegroundCallback != null) {
Pushman.NotificationForegroundCallback(msg);
}
},
onBackgroundNotification: function (msg) {
Pushman.log("OnBackgroundNotification: " + msg);
if (Pushman.NotificationBackgroundCallback != null) {
Pushman.NotificationBackgroundCallback(msg);
}
},
onColdStartNotification: function (msg) {
Pushman.log("OnColdStartNotification: " + msg);
if (Pushman.NotificationBackgroundCallback != null) {
Pushman.NotificationBackgroundCallback(msg);
}
},
onError: function (error) {
Pushman.log("Error: " + error);
if (Pushman.ErrorCallback != null) {
Pushman.ErrorCallback(error);
}
},
onAndroidNotification: function (e) {
switch (e.event) {
case 'registered':
if (e.regid.length > 0) {
Pushman.onRegistered("Registered");
}
break;
case 'message':
if (e.foreground) {
//if this flag is set, this notification happened while app in foreground
Pushman.onInlineNotification(e.payload.message);
} else {
//otherwise app launched because the user touched a notification in the notification tray.
if (e.coldstart) {
//app was closed
Pushman.onColdStartNotification(e.payload.message);
}
else {
//app was minimized
Pushman.onBackgroundNotification(e.payload.message);
}
}
break;
case 'error':
Pushman.onError(e.msg);
break;
default:
Pushman.onError("Unknown message");
break;
}
},
onIOSNotification: function (event) {
//TODO: not sure how ios works re cold start vs inline msg types?
if (event.alert) {
navigator.notification.alert(event.alert);
}
if (event.badge) {
Push.setApplicationIconBadgeNumber(app.successHandler, app.errorHandler, event.badge);
}
},
tokenHandler: function (result) {
// iOS - not sure its use though appears somewhat important
// Your iOS push server needs to know the token before it can push to this device
// here is where you might want to send it the token for later use.
alert('device token = ' + result);
},
log: function (msg) {
console.log(msg);
},
}
///"class" variables - not sure how to put them into the js "class"
Pushman.Push = null;
Pushman.Hub = null;
Pushman.HubConnectionString = null;
Pushman.HubName = null;
Pushman.GcmSenderId = null;
Pushman.NotificationForegroundCallback = null;
Pushman.NotificationBackgroundCallback = null;
Pushman.RegisteredCallback = null;
Pushman.UnRegisteredCallback = null;
Pushman.ErrorCallback = null;
I did not write this myself, all credit goes to this guy.
Then you just need to initialize the plugin when the application starts:
//azure notificationshub connection information
notificationHubPath = "notificationhub name";
connectionString = "notificatin hub connectionstring";
//sender id for google cloud services
var senderIdGCM = "sender id from google gcm";
//tag registration (csv string), can be empty but not undefined
var registrationTagsCsv = ""; //test1, test2
var app = {
Initialize: function () {
//reg for onload event
this.AppStart();
},
AppStart: function () {
"use strict";
document.addEventListener('deviceready', app.onLoad, false);
document.addEventListener('deviceready', onDeviceReady.bind(this), false);
function onDeviceReady() {
// Handle the Cordova pause and resume events
document.addEventListener('pause', onPause.bind(this), false);
document.addEventListener('resume', onResume.bind(this), false);
// TODO: Cordova has been loaded. Perform any initialization that requires Cordova here.
};
function onPause() {
// TODO: This application has been suspended. Save application state here.
};
function onResume() {
// TODO: This application has been reactivated. Restore application state here.
};
},
onLoad: function () {
app.log("Initializing...");
//setup push notifications
Pushman.Initialize(connectionString, notificationHubPath, senderIdGCM,
app.onNotificationRegistered, app.onNotificationUnRegistered,
app.onNotificationInline, app.onNotificationBackground, app.onNotificationError);
//hookup cmd buttons
app.registerForPush();
//$("#register").click(app.registerForPush);
//$("#unregister").click(app.unRegisterForPush);
app.onAppReady();
},
registerForPush: function (a, c) {
app.log("Registering...");
//register for tags
Pushman.RegisterForPushNotifications(registrationTagsCsv);
},
unRegisterForPush: function (a, c) {
app.log("UnRegistering...");
//register for tags
Pushman.UnRegisterForPushNotifications();
},
onAppReady: function () {
app.log("Ready");
},
onNotificationRegistered: function (msg) {
app.log("Registered: " + msg.registrationId);
},
onNotificationUnRegistered: function () {
app.log("UnRegistered");
},
onNotificationInline: function (data) {
app.log("Inline Notification: " + data);
},
onNotificationBackground: function (data) {
app.log("Background Notification: " + data);
},
onNotificationError: function (error) {
app.log("Error: " + error);
},
log: function (msg) {
console.log(msg);
},
};
If you want to store the messages then you just need to add your code for storing to sql where the messages get received. You'll need an azure account to make this work, here you can get a free trail. It will allow you to send up to 1 million push notifications a month free of charge.
I think this article may be of use, it has more of a direct native workaround for your hybrid app to work
http://www.hiddentao.com/archives/2015/04/10/parse-push-notifications-for-your-android-and-ios-cordova-app/.
I'm working on a Cordova android app, and this seems to be a working solution