Eric lippert - Amazon Web Services

var channelTable = tables.getTable(‘ChannelSub’);
channelTable.read({
success: function(channels) {
channels.forEach(function(channel) {
if((channel.acceptBroadcast && channel.myId != item.
myId) ||
(channel.myId==item.toId)){
push.wns.sendToastText04(channel.channel, {
text1: item.myId + ‘: ‘ + item.fakeTweetText +
(item.toId === ‘’ ‘ BROADCAST’: ‘’)
}, {
success: function(pushResponse) {
console.log(“Sent push:”, pushResponse);
}
});
} });
} }); }}
Notification 2: KirkyBoy sees the ‘BROADCAST’ tag and is irked at
‘DVader’ for broadcasting a message and retorts back to DVader
directly.
Here in the sendNotifications method, we are looping through all
the subscribers and sending them a message if the Incoming
request’s ‘toId’ matches (and it’s not the same as the sender) or if
the channel subscribers are subscribed to receive broadcast
messages.
Demo
With the scripts in place, we load this application up on two
machine, a Desktop and a Surface RT. On Desktop we have a user
called DVader and on the Surface we have a user called KirkyBoy.
Both are subscribed to receive broadcast messages.
Notification 1: DVader sends out a Broadcast message asking if
KirkyBoy is around. KirkyBoy receives a toast notification for this
as follows
Nice eh!
Wrapping it up
With that little squabble between our fictitious characters, we
have seen Azure Mobile Service Notifications in full swing. It is
quite amazing how the complex task of co-ordination between
AppServer and WNS as well as registration and security ID were all
handled by Azure Mobile services.
Going forth, be it social media apps or business apps,
implementing Push notifications are really going to be a breeze
and with the cost of one shared SQL Server DB instance, the
amount of plumbing work saved, definitely offsets the expenditure
of developing and maintaining a stable notification system from
ground up
The complete code sample can be downloaded from
bit.ly/dncm6-zutw but you do need to put in our Azure
Mobile Service Application ID.
Sumit is a .NET consultant and has been
working on Microsoft Technologies for the
past 12 years. He edits, he codes and he
manages content when at work. C# is his
first love, but he is often seen flirting with
Java and Objective C. You can Follow him on
twitter @sumitkm and read his articles at bit.ly/KZ8Zxb
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