Develop Reference

How do I receive push notifications of new Outlook emails to an Android device?

I'm making an Android app in which I want user to sign in to their Outlook account and receive push notifications to the app from the Microsoft Graph API when an email is received in their inbox. How can I do this?
I can subscribe to inbox changes using a HTTP subscription request (as specified here https://learn.microsoft.com/en-us/graph/webhooks?view=graph-rest-1.0), with something like:
POST https://graph.microsoft.com/v1.0/subscriptions
Content-Type: application/json
{
"changeType": "updated",
"notificationUrl":
"https://webhook.azurewebsites.net/notificationClient",
"resource": "/me/mailfolders('inbox')/messages",
"expirationDateTime": "2016-03-20T11:00:00.0000000Z",
"clientState": "SecretClientState"
}
In this request I need to specify a "notificationUrl" where notification updates are sent to - how can I set this up? Is there functionality for this on Azure?
From there I believe I can use the instructions here to send push notifications to the Android device https://learn.microsoft.com/en-us/azure/notification-hubs/notification-hubs-android-push-notification-google-fcm-get-started.
This involves setting up a notification hub on Azure which connects to Firebase, which then sends notifications the app. Is this the best/only way to do this?
Any help much appreciated!

The notificationUrl can be the webhook url of the azure function app. https://azure.microsoft.com/en-us/resources/videos/create-a-web-hook-or-api-azure-function/.
Therefore, you can use azure function to invoke Firebase API to send notifications.
Please see https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-notification-hubs#packages---functions-1x and https://firebase.google.com/docs/cloud-messaging/migrate-v1.
Besides, I would recommend you to use azure logic app. It has built in connector to use when a message arrives your inbox.
Take a look here https://learn.microsoft.com/en-us/azure/connectors/connectors-create-api-office365-outlook.

Does IBM MobileFirst capture Analytics if we are connection directly to rest server using WLResourceRequest

I am trying to connect to my Development Rest Server using Ibm MobileFirst Apis(WLResourceRequest).And it works fine for me ....
I used it as mentioned in the following link
Does Mobilefirst provide a provision to access web services directly?
My question is as MobileFirst captures all the analytics for adapters calls like Backend Response Time,Average Request Size etc. Will all these data also gets captured for direct rest server calls.
If not how would I make it capture analytics for rest service calls also...

If you use WLResourceRequest to connect backends other than the MobileFirst server then you will get some analytics information but not as detailed.
For example if you use the following:
var req = new WLResourceRequest('https://www.yourotherbackendservice.com/your/resource/path/', 'GET');
req.send().then(function(e){
// OK
}, function(e){
// handle error
});
The you will get things like Roundtrip Time and Response Size but you will NOT get Backend Response Time because that is calculated by the MobileFirst Server.

Android GCM : understanding XMPP

I'm trying to implement a XMPP protocol in my GCM using app, but even after searching extensively, I don't understand the concepts behind it.
Also, maybe I don't really need XMPP for what I want to do with my app, but I like to learn things.
Let's take this example of what I could do with HTTP :
my app send "hello word" and the regId to my little personnal server : url.openConnection(""), then OutputStream for sending POST data and InputStream for getting the response
the server, at this url, put the "hello word" message in a database with the regId, and then use the curl library of php to send data to GCM servers as a json string like {"myResponse":"I'm not world I'm Dan"} (using a test destinator id, in an emulator)
GCM server do his business
my app (maybe on another phone) use an IntentService in a WakefulBroadcastReceiver that get the message as intent.getExtras().getString("myResponse")
This works well and I could send messages from one phone to another using my app, and collecting data on my server the way through.
Very little Question
Is this way of handling HTTP ok theorically ? (I saw a lot of posts and tutorials, especially Google ones, but still not sure)
Big real Question
What are the steps to do the same with XMPP ?
I don't want a tutorial or pieces of codes, I want to understand the way the info goes through this protocol I don't know well (I managed to install ejabberd on my server and use pidgin on my PC and Xabber on my phone).

Official definition:
The Google Cloud Messaging (GCM) Cloud Connection Server (CCS) is an
XMPP endpoint that provides a persistent, asynchronous, bidirectional
connection to Google servers.
Establishing a connection with CCS is the first and most important step here. Once you are done with this and maintain a long-lived connection, other parts are not that tricky.
Some differences between the two:
1) Unlike HTTP, with XMPP messages you do not need to include Authentication headers with every payload since server is authenticated at the time of connecting and we are maintaining the same connection.
2) CCS uses XMPP as a Transport Layer and therefore after you have successfully established connection you can exchange stanzas.
3) You could keep using HTTP for downstream though and use XMPP only for upstream if you wish.
4) Instead of registration_ids param use to: in XMPP and we can only send to one RegID through one stanza.
So if I were to explain how your example would work with XMPP:
- Establish a connection with CCS
- Send an upstream message to your server from the client "Hello, World!"
- Acknowledge once your server receives this message by sending ACK to GCM
- For downstream message you have choice of using either of HTTP or XMPP
- But if XMPP: receive, save in database and when sending response ({"myResponse":"I'm not world I'm Dan"}) back to the client (same or different RegID) send a downstream stanza to CCS; CCS will send ACK/NACK to acknowledge that it has received the message
- You will also receive delivery_receipt (if requested) once the client app has received the message.
Other than this, you can understand more in depth by reading the official documentation which I have linked throughout the post.
Hope this helps!

Can't connect to GCM using node-xmpp client

I am attempting to run gcm server using node-xmpp, but xmpp client does not seem to open at all and closes after timeout.
var xmpp = require('node-xmpp-client');
var options = {
type: 'client',
jid: 'fake-project-123#gcm.googleapis.com',
password: 'ApiKeyHere',
port: 5235,
host: 'gcm.googleapis.com',
legacySSL: true,
preferredSaslMechanism : 'PLAIN'
};
console.log("Creating XMPP Application");
var cl = new xmpp.Client(options);
cl.on('online', function()
{
console.log("XMPP Online");
});
Rest of the code was omitted. In the console, I never get to see "XMPP Online".
How do I check if xmpp is even connecting, and where it fails to open?

I got the same problem and found out that the Connection.startStream() was never called, although the socket was opened successfully.
Here's my pull request:
https://github.com/node-xmpp/node-xmpp-client/pull/61
Until it gets merged, you can use my fork, which should work for GCM:
https://github.com/Riplexus/node-xmpp-client

I followed this from gcm google groups and it worked for me.
And for timeouts you can try
xmppClient.connection.socket.setTimeout(0)
xmppClient.connection.socket.setKeepAlive(true, 10000)
Don't forget to whitelist your server ip in google console.

I have given up the hope of using node-xmpp and game smack client a try. Sadly it did not work, but I did get an error saying my project is not whitelisted. When project is whitelisted, it can receive messages from android devices, which is exactly what I need and is the sole reason why I went straight to CCS (XMPP). Without the whitelist, it is not possible to use CCS (XMPP) for sending the messages to android devices. In order to use HTTP method, the project does not need to be whitelisted, but has a limitation to being able to send messages only. I have signed up upstream GCM but have yet to receive response.
https://services.google.com/fb/forms/gcm/

Http Client for cloud-to-device

Hello I write application for Android with push notification, I read documentation and there client is only for server with XMPP protocol, http://developer.android.com/google/gcm/client.html. I write application such will get data from server(time to start alarm) and it is not nessecary to do feedback. Do you have examples of HTTP client for cloud-to-device?

The client code in the link you posted works for both XMPP connection server and HTTP connection server. The only difference is that for HTTP server you can't use the GoogleCloudMessaging.send method (called by the onClick method), because that method sends a message from device to cloud.
The handling of the registration to GCM and incoming cloud to device messages is the same for both server implementations.

Our Http application server (cloud to device) is just an api call to an end point. This api call can be done in many ways, One is https://github.com/mseshachalam/GCMMessage-MultiCURL