Full Stack Developer

You can use quick native ubuntu crontab command to setup schedule for your node app.

Make sure you have cron installed on your ubuntu server.

$ sudo apt-get update

$ sudo apt-get install cron

Now setup your crontab.

$ cronttab -e

It opens editor to enter your cron command. You can add command like below to run your node script. Then Contrl + O to save changes and Cntrl+X to exit editor.

Following command runs every one minute. You can change schedule by changing cron frequency format from * * * * * to desired. You can google for valid formats for other time periods. here is one example http://www.thegeekstuff.com/2009/06/15-practical-crontab-examples/

* * * * * cd /home/ubuntu/apps && sudo /usr/local/bin/node today.js >> 'today.log'

You can view current crontab info

$ crontab -l

Crontab can be removed quickly. Make sure to backup your command script before removing it.

1. Copy link to Node.js Linux binary tar file from https://nodejs.org/download/

2. You can download this file from the browser or from the console. The latter is shown below (note: the specific Node.js version might be different for you):

$ wget http://nodejs.org/dist/v0.12.3/node-v0.12.3-linux-x64.tar.gz

3. From a console window, go to the directory where the Node.js binary was downloaded to, and then execute the following command to install the Node.js binary package in “/usr/local/”:

sudo tar -C /usr/local --strip-components 1 -xzf node-v0.12.3-linux-x64.tar.gz

4. You should now have both node and npm installed in “/usr/local/bin”. You can check this typing:

$ node -v

v0.12.3

$ npm -v

To access your instance:

 Open an SSH client. (find out how to connect using PuTTY)

 Locate your private key file (wonupit.pem). The wizard automatically detects the key you used to launch the instance.

Your key must not be publicly viewable for SSH to work. Use this command if needed:

chmod 400 myserver.pem

4. Connect to your instance using its Elastic IP:

11.111.111.11

Example:

ssh -i myserver.pem [email protected]

Install Mongo

>sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

>echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list

>sudo apt-get update

>sudo apt-get install -y mongodb-org

>sudo service mongod start

>tail -f /var/log/mongodb/mongod.log

Install Nodejs

>curl -sL https://deb.nodesource.com/setup | sudo bash -

>sudo apt-get install nodejs

>sudo apt-get install build-essential

Here is my route require('dotenv').load(); var Promise=require('bluebird'); var KalturaConstants = require('../kaltura/KalturaTypes.js'); var Kaltura = require('../kaltura/KalturaClient.js'); var KalturaClient = null; var Session = null; var pager = new Kaltura.objects.KalturaFilterPager(); pager.pageSize=10000; pager.pageIndex=1; exports.initialize = function(callback) { var config = new Kaltura.KalturaConfiguration(parseInt(process.env.KALTURA_PARTNERID)); KalturaClient = new Kaltura.KalturaClient(config); KalturaClient.session.start(function(session) { KalturaClient.setKs(session); Session = session; callback(); }, process.env.KALTURA_ADMINSECRET, process.env.KALTURA_USERID, KalturaConstants.KalturaSessionType.ADMIN, parseInt(process.env.KALTURA_PARTNERID), '10000'); } exports.listMedia = function(userid) { var deferred = Promise.pending(); var filter = new Kaltura.objects.KalturaMediaEntryFilter(); if(userid != undefined) { filter.userIdEqual = userid; } filter.nameMultiLikeOr="hd_still_1"; KalturaClient.media.listAction(function(results) { if (results.objectType === 'KalturaAPIException') { return deferred.reject(results); } deferred.resolve(results.objects); }, filter, pager); return deferred.promise; } Here is my app.js

var routes = require('./routes'); var _ = require('lodash'); routes.kaltura.initialize(function(){ routes.kaltura.listUser().then(function(users){

I have been playing with RabbitMQ since heard about it from local Node meetup. AMQP very cool and powerful protocol to do your data exchange between applications can be either client server or web or mobile. They are very fast.

I developed sample for my own learning based on this blog article.

https://blog.appfog.com/tutorial-rabbitmq-node-js-on-appfog/

I had to make few corrections to it to make it work on my mac.

Install and Run RabbitMQ on your mac.

https://www.rabbitmq.com/install-standalone-mac.html

Create new project in Webstorm 9 and copy these files in to project to run.

It is so easy to spinoff quick server at Digital Ocean with Docker already installed and configured (simply choose docker pre installed droplet).

You simply write your Dockerfile and upload to your server root along with your node app and then run docker build and docker run commands on the server via SSH to quickly containerize your node application in Docker.

$docker build -t varmab/mynodejs-server .

$docker run -d --name mynodejs-server -p 80:80 varmab/mynodejs-server:latest

Developing rest API is breeze now using StrongLoop's Loopback and  Webstorm 9.

Assuming you have node.js and npm are installed already on your mac.

Create new Webstorm 9 empty project

Go to View > Tool Windows > Terminal

Type following commands

1. Install Strongloop

$ npm install -g strongloop

$ npm install -g strong-studio

2. Bootstrap loopback app

$ slc loopback

Enter key twice to answer default app name and location to bootstrap.

After it complete,

$ strong-studio

It opens Studio in web browser where you can create new models and setup database connection to mongodb.

$ slc run

This command starts the node server where you can check generated API with nicely formatted API documentation.

Install both cli and feedparser

$ npm install cli

$ npm install feedparser

make sure your js file had permission to execute

$ chmod +x gigpost.js

Run your js file now

You can install both npm and node.js by installing package below

http://nodejs.org/

Uninstall any previous versions before installing above package.

See following stackoverflow for more tips on how to uninstall previous versions.