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npm is most commonly used for managing Node.js modules, but it works for the front-end too. Bower is created solely for the front-end and is optimized with that in mind.

The biggest difference is that npm does nested dependency tree (size heavy) while Bower requires a flat dependency tree (puts the burden of dependency resolution on the user).

A nested dependency means that your dependencies can have their own dependencies which can have their own, and so on. This is really great on the server where you don’t have to care much about the space and latency.

Let’s say you setup one server in one AWS region,  moving that AWS EC2 instance to another region may result in a headache, who don’t know copying AMI instead of creating new instance and setup server, deploy code again. All I mean manually copying not required.

Let’s change region of AWS EC2 –

Step1: Create an AMI of existing EC2 instance.

Step2: Copy that newly created AMI in the desired region.

Step3: Change AWS region in the AWS console and check AMI menu, and launch copied AMI, select options in next steps for a new instance.

Step 4: Cleanup AMI, snapshots in both regions which are not required after launching instances.

Note – In case of you are running web application, after changing region, let say you changed production server to work it on domain, update IP DNS records.

Composer is a cross-platform dependency manager for PHP libraries. Let’s install it on OS X and add an alias/shortcut/command so you can use it from anywhere.

Downloading Composer will create a Phar (PHP Archive) file called “composer.phar”

From your terminal, run the following command:

curl -sS https://getcomposer.org/installer | php // S option to show any errors if occurred while downloading

mv composer.phar /usr/local/bin/composer

Now, try composer command in terminal.

People who are used to integarte GCM in ionic apps, its time to migrate to FCM( Firebase Cloud Messaging )

App/Device/Client side steps :

Use plugin https://github.com/fechanique/cordova-plugin-fcm

STEP 1
cordova plugin add cordova-plugin-fcm

STEP 2

if(window.cordova) {

FCMPlugin.onNotification(
function(data){
if(data.wasTapped){
// $state.go(‘message’, {id:data.pageId});
// $location.path(‘app/userList’);
alert(‘onNotification tapped true’);
} else {
alert(“xxxxxxxxxxxx”+data);
}
},
function(msg){
// alert(“asdf”+msg)
alert(‘onNotification callback successfully registered: ‘ + msg);
FCMPlugin.onTokenRefresh(function(token){
console.log( token );
window.localStorage.setItem(“deviceId”,token);
});
},
function(err){
// alert(“fjkjg”+err)
alert(‘Error registering onNotification callback: ‘ + err);
}
);
}

Update version 1.0.0 to 1.2.3
dependencies {
classpath ‘com.android.tools.build:gradle:1.0.0+’
}

STEP 3

to fix crash, add app id to  existing defaultConfig like below,
defaultConfig {
applicationId “com.init.solutions”
// remaining code
}

Server Side:

var request = require(‘request’);

var options = {
url: ‘https://fcm.googleapis.com/fcm/send’,
headers: {
// ‘User-Agent’: ‘request’,
‘Content-Type’: ‘application/json’,
‘Authorization’ : ‘KEY=XXXXde90z3A:APadasdasdasdasddsA’
},
body : JSON.stringify({
“notification”:{
“title”:”Notification title”,
“body”:”Notification body”,
“sound”:”default”,
“click_action”:”FCM_PLUGIN_ACTIVITY”,
“icon”:”fcm_push_icon”
},
“data”:{
“param1″:”value1”,
“param2″:”value2”
},
“to”:”c7fgnn9QJ50:APA91bGaLIdYmhpy0O0T…..”,
//”priority”:”high”,
//”restricted_package_name”:””
})

};

request.post( options, function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body) // Show the HTML for the Google homepage.
} else {
console.log(body) // Show the HTML for the Google homepage.
}
})