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Scale single sign-on with App ID for your Node.js cloud apps
In this tutorial, you will learn about implementing scalable Node.js applications when you are using the App ID service. This IBM Cloud service allows you to add authentication to your mobile and web apps and protect your APIs and back-ends running on IBM Cloud. App ID provides authentication with email/password through a scalable user registry or you can add social login, so that users can sign in with their Facebook or Google credentials. With App ID, you can also host user profile info that you can use to build engaging experiences.
Also available in: Chinese   Japanese   Portuguese  
14 Mar 2018
Make your websites smarter with Schema.org, Part 1: Introduction to the Schema.org information model
Schema.org is an initiative originally created by search engine companies and experts to support web publishers by describing the things that web pages are actually about. This series, in which I explain the Schema.org core information model, helps you expand your web developer skills and get a head start on advances in search engine platforms and personal assistants like Siri, Google Assistant, and Alexa.
Also available in: Chinese  
05 Dec 2017
Add language translation to your apps with IBM Watson
Add language translation to your IBM Cloud apps. Use Node-RED and the Language Translation service to create an app that translates text that the user enters and performs sentiment analysis on that text.
Also available in: Chinese   Russian   Japanese   Spanish  
27 Jul 2017
Write a Clojure web app on IBM Cloud
Getting started with functional programming? Clojure is a popular functional programming language based on Lisp. Learn how to use Node.js to run Clojure programs as part of a web application deployed on IBM Cloud.
Also available in: Chinese   Japanese  
26 Jul 2017
Conserve water with the Internet of Things, Part 3
This third tutorial in a three-part series shows how to build a low-cost plant-monitoring solution based on Raspberry Pi. In this final installment, you'll build an HTML5 application that provides a visualization of the sensor data for desktop and mobile devices. You'll create an open data API to make the data available from the Cloudant data store.
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18 Jul 2017
Conserve water with the Internet of Things, Part 2
This second tutorial in a three-part series shows how to build a low-cost plant-monitoring solution based on Raspberry Pi. Secure the Node-RED app and set up automated deployment to IBM Cloud in response to code changes.
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18 Jul 2017
Write runnable and deployable code for the IBM Cloud Functions platform
One of the great things about the developerWorks sandbox is that you can run your code in the browser or deploy it to Bluemix. Your deployed code is an action on the IBM Cloud Functions platform. However, the Cloud Functions platform requires your JavaScript or Java code to support a particular interface before you can deploy it. This tutorial explains the rules and requirements to make everything work.
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10 Jul 2017
Invoking actions on the IBM Cloud Functions platform
One of the great things about the developerWorks sandbox is its ability to deploy code to IBM Cloud. The deployed code becomes an action in the IBM Cloud Functions environment. This article shows you four ways to access that action after it's been deployed.
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28 Jun 2017
Get started with the JavaScript language, Part 5: Conditional statements
Continuing on the foundational understanding of the JavaScript language, this article explores conditional statements in the JavaScript language and how you can use them. Code examples to show how it's all done are included as are places to practice what you're learning.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 3: Operators
Continuing on the foundational understanding of the JavaScript language, this article explores all of the available operators in the JavaScript language and how you can use them. Code examples to show how it's all done are included as are places to practice what you're learning.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 4: Arrays
Continuing on the foundational understanding of the JavaScript language, this article explores all of the available operators in the JavaScript language and how you can use them. Code examples to show how it's all done are included as are places to practice what you're learning.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 6: Functions
Continuing on the foundational understanding of the JavaScript language, this article explores functions in the JavaScript language and how you can use them. Code examples to show how it's all done are included as are places to practice what you're learning.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 7: Loops
Continuing on the foundational understanding of the JavaScript language, this article explores loops in the JavaScript language and how you can use them.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 2: Variables
Continue your JavaScript language journey with this interactive tutorial about variables. Variables store data that can later be retrieved or updated with new data.
Also available in: Japanese  
10 May 2017
Get started with the JavaScript language, Part 1: The basics
Want a foundational understanding of the JavaScript language? This tutorial series series gets you started by covering basic JavaScript concepts for beginners, and provides code examples to show how it's all done.
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08 May 2017
The busy JavaScript developer's guide to ECMAScript 6, Part 3: Classes in JavaScript
Love it or hate it, JavaScript has long been a language without classesobject-based but not object-oriented. Find out how ECMAScript 6 changes all that, and what it means for prototypical inheritance in your JavaScript programs.
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03 May 2017
The busy JavaScript developer's guide to ECMAScript 6, Part 4: New objects and types in the standard library
Get started with a handful of worthy additions to the standard library new objects and types that, over time, could revolutionize the way you code in JavaScript.
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03 May 2017
The busy JavaScript developer's guide to ECMAScript 6, Part 2: Functional enhancements
Some of the new features you'll find in ECMAScript 6 are associated with functional programming, including the arrow and generator functions. Get started with using these and other functional elements in your JavaScript programs.
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03 May 2017
The busy JavaScript developer's guide to LoopBack, Part 2: Models
In Part 2 of this series on the LoopBack framework, learn how to define and use models and data sources as you walk through the development of a basic web API.
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24 Apr 2017
Use the Node.js event loop effectively
For new Node.js application developers, part of the learning curve is getting comfortable with how the single-threaded event loop works and how it can lead to unexpected results. You can practice using the event loop in the three interactive samples in this tutorial. In no time, you'll be writing fast, efficient code that handles asynchronous calls easily.
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20 Apr 2017
Protect your apps from cross-site scripting (XSS) attacks
One of the most common techniques for cross-site scripting attacks is injecting code into a web page. This code snippet shows you how to use escape sequences so that any injected code can't run.
Also available in: Chinese  
14 Apr 2017
Develop an Angular Ionic mobile app using IBM Cloud Push services
This tutorial takes you through the minimum steps needed to properly use the bms-push plugin in an Ionic AngularJS mobile app.
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24 Mar 2017
The busy JavaScript developer's guide to LoopBack, Part 1: Hello, World!
LoopBack is one of many open source Node.js frameworks that have recently rebooted the possibilities for server-side JavaScript development. Set up LoopBack in your development environment, then write your first LoopBack API using the command line and IBM API Connect, an API lifecycle management platform.
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07 Mar 2017
An easy way to provision and invoke actions in IBM OpenWhisk
IBM OpenWhisk is a simple open source service that rapidly launches and runs code tidbits on-demand, in response to an incoming REST request. In this tutorial, learn how to issue OpenWhisk commands manually. Then see how to use a Python library that makes it even easier to issue those commands.
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25 Oct 2016
Build a hybrid mobile app with IBM Cloud, Watson, and Apache Cordova
This article describes how to take an existing web app and easily transform it into a hybrid mobile application. Hybrid mobile apps are built using the tools you know and love, JavaScript, HTML5 and CSS. They are wrapped in a thin layer of native code and provide access to device capabilities, including location, accelerometer, camera, contacts and more. They run natively on iOS, Android, Windows phone, and other platforms. You can even find them in the app store.
Also available in: Japanese  
04 Aug 2016
Deploy a Meteor-based web and mobile chat server
Discover developerWorks Premium and host a private Rocket.Chat server on IBM Bluemix for your development team or friends/family, with you in full control. A developerWorks Premium membership can give you a head start on cloud services deployment.
Also available in: Chinese  
26 May 2016
Use jspm to harness the future of JavaScript modules
The jspm framework breaks new ground in JavaScript client-side dependency management. Find out how you can use future JavaScript (ECMAScript 6) language features now, thanks to jspm. Learn how jspm automates module resolution through registries such as npm and GitHub, and take a look at value-added tools that jspm includes.
Also available in: Chinese   Japanese  
09 Mar 2016
Docker: A boon for the modern developer
Use Docker to code more productively and expand your skills more efficiently. Declutter your development environment, eliminate dependency conflicts, and reduce development and learning time by working with containerized applications.
Also available in: Chinese   Japanese  
05 Jan 2016
Build a notepad application with PHP, MongoDB, and IBM Bluemix
This article shows you to use IBM Bluemix to build and deploy a web-based notepad application with PHP, MongoDB, and Bootstrap. It uses MongoDB for fast and scalable document storage, the Slim PHP micro-framework for the application's business logic, and Bootstrap for a responsive, mobile-friendly user interface.
Also available in: Chinese   Japanese  
15 Dec 2015
Reader favorites: Top 5 cloud computing tutorials for 2015
As you may have noticed, much of the cloud computing content we've published on developerWorks this year has focused on IBM Bluemix. Indeed, I've already posted a list of our top 5 Bluemix tutorials for 2015. But there's a whole lot more to developing for cloud than that one (very powerful) product. That's why I've pulled together this separate list: top 5 developerWorks tutorials published in 2015 that focus on cloud topics other than Bluemix. I chose these based on developerWorks traffic data for 2015 to date -- that's right, these are your favorites for the year.
Also available in: Chinese  
15 Dec 2015
Build and deploy an investment tracking application in the cloud with IBM Bluemix, Part 2
In Part 2 of this two-part series, I show you how to use the financial data in a PHP application developed in Part 1 to provide an instant, accurate valuation of an investment portfolio.
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07 Dec 2015
Build and deploy an investment tracking application in the cloud with IBM Bluemix, Part 1
In Part 1 of this two-part series, I show you how to connect and retrieve financial data using an open API. A mobile-compliant interface framework enables the application to work equally well on desktop computers and mobile devices. And hosting it on IBM Bluemix ensures reliability and scalability.
Also available in: Chinese   Japanese  
02 Dec 2015
Microservices in action, Part 2: Containers and microservices — a perfect pair
Discover how Linux containers are revolutionizing software development and powering microservices to shift an entire industry. Know the requirements that are critical to success in microservices adoption and how container-based infrastructures make it easier to meet those requirements.
Also available in: Chinese   Portuguese  
13 Nov 2015
Playful web development, Part 2: Unleash Play in the cloud
Follow a step-by-step guide to preparing, securing, and deploying a nontrivial Play Framework application to run in IBM Bluemix. The app implements user management and authentication, using MongoDB for persistence and SendGrid for email services.
Also available in: Chinese   Japanese  
12 Nov 2015
Playful web development, Part 1: Manage user authentication with the Play Framework and Scala
Implement user management for your Play Framework applications and put your Scala skills to work. Pablo Pedemonte takes you through building a basic Play application that handles authentication and authorization. You can even use the application code as a starter for your own Play projects to shorten user-management development time.
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12 Nov 2015
Publish onsite REST APIs to Bluemix using the Secure Gateway and API Management services
With the Secure Gateway and API Management services, you can easily publish a REST API service onsite as a new custom service on Bluemix. In this article, I begin with an onsite sample REST API service, expose it to Bluemix, manage it and publish it as a new custom service, then build a sample app for validation. If you need your Bluemix applications to access an onsite environment, you should find this article helpful.
Also available in: Chinese   Japanese  
19 Oct 2015
Add interactive documentation to your JavaScript apps with Intro.js
Add easy-to-absorb, interactive user documentation to your JavaScript apps with Intro.js. Learn from a sample tour implementation how to demonstrate your application's features the modern way from within the app's UI.
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09 Oct 2015
Build a simple face detection web app
Develop a simple application in PHP to use the powerful cognitive computing features of the AlchemyAPI service on IBM Bluemix. The app demonstrates how the face detection functions of the AlchemyAPI service can: study images and find faces, identify the gender, estimate the age, and often identify the specific person. You don't need to know anything about cognitive computing or deep learning algorithms to develop the cognitive app on Bluemix with only a few lines of code in this step-by-step example.
Also available in: Chinese   Japanese   Portuguese  
08 Oct 2015
Develop full-stack Java apps with Vaadin in the cloud
Use the Vaadin Rich Web Starter boilerplate to deploy a customized DB2-backed, three-tier order-desk web app to the Bluemix cloud in minutes.
Also available in: Chinese   Japanese  
30 Sep 2015
Core dump debugging for the IBM SDK for Node.js
Debug Node.js application crashes and memory leaks with an Eclipse add-on that works alongside the IBM SDK for Node.js to help you diagnose core dumps.
Also available in: Chinese   Japanese  
30 Sep 2015
Full-stack Java web dev with Vaadin
Java web developers are often forced to learn JavaScript, CSS, and HTML5 (cornerstone of all modern browsers) in order to create compelling interactive user experiences for their web applications. Vaadin open source framework empowers Java developers by giving them full-stack control within a 100% Java world.
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30 Sep 2015
Data integration at scale: Explore OSLC examples
Explore simple but useful examples of how the conceptual layers presented so far in this series combine to integrate information easily and seamlessly across various tools. The examples use Open Services for Lifecycle Collaboration (OSLC) vocabularies and standards, but they are equally useful for any group of participants wanting to connect information quickly to find value across data stores.
Also available in: Chinese   Portuguese  
02 Sep 2015
Build your first Node.js website, Part 1
Do you want to build a dynamic website with Node.js but are unsure where to start? This three-part article introduces you to Node.js development step by step, with no software installation required. Using only a web browser, you create a Node.js application, write server-side JavaScript, display dynamic data on HTML pages, and store data in a Redis database.
Also available in: Chinese   Russian   Japanese   Portuguese   Spanish  
20 Aug 2015
Looking at the evolution of service composition, from SOA to cognitive services
Today, developers can create a wide variety of service compositions with a new breed of cognitive computing services. There are endless possibilities for creating service compositions, but that wasn't always the case back in the early days of service-oriented architecture (SOA) services. In this article, I review the history of service composition development and show how much it has evolved.
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20 Aug 2015
Data integration at scale: OSLC and the Linked Data Platform
Learn how the Open Services for Lifecycle Collaboration (OSLC) community applies the concepts that are introduced in this series to collaborative software development. OSLC uses Linked Data and other Semantic Web standards to make it easier for requirements-tracking, development, and testing tools to work together throughout the software lifecycle.
Also available in: Chinese   Japanese   Portuguese  
05 Aug 2015
Mastering MEAN: Testing the MEAN stack
Take a walk through the "small pieces, loosely joined" of the MEAN stack's testing infrastructure. No application, MEAN or otherwise, is ready for production without passing a rigorous, comprehensive test suite. See how to use Karma, Mocha, Jasmine, and istanbul, helped by PhantomJS, to test the UGLI app.
Also available in: Chinese   Japanese  
28 Jul 2015
React Native: Into a new world of rapid iOS development
Get on the mobile fast track with React Native, the fastest-growing platform and tool set for iOS development. Put aside the Objective-C and Swift tutorials, and start coding iOS apps with JavaScript. Get an introduction to React Native, learn about its architecture and internal operations, and work through an example application that highlights React Native programming techniques.
Also available in: Chinese   Japanese  
15 Jul 2015
Data integration at scale: Linked Data
Linked Data technologies effectively make one data set out of many. Now that you understand the Resource Description Framework (RDF) data model and the SPARQL Protocol and RDF Query Language (SPARQL), learn how those standards combine with the web's architecture to create and use easily consumable interconnected data.
Also available in: Chinese   Russian   Japanese  
22 Jun 2015
PHP renewed: Creating environments with Vagrant and PuPHPet
Thanks to Vagrant and PuPHPet, you can easily build consistent PHP development and deployment environments that take advantage of virtual-machine technology. These open source tools work with desktop-virtualization software such as VirtualBox to help you do away with apparent bugs that result from discrepancies between systems. PHP expert Eli White shows you how to put Vagrant and PuPHPet to work for your team.
Also available in: Chinese   Russian   Japanese  
03 Jun 2015
Instant web applications with Meteor
With the Meteor web development platform, JavaScript developers can design and build highly interactive and responsive rich-client web applications easily and rapidly. Gain hands-on experience building Meteor apps that take advantage of industry-standard JavaScript libraries. Sing Li goes beyond the hype and explores the promise of Meteor with nontrivial, functional application examples. Ed note: This tutorial has been updated to reflect changes in the Meteor framework, from early beta in 2013 to the current version, 1.1.x.
Also available in: Chinese   Russian   Japanese  
27 May 2015
Migrate an app from Heroku to Bluemix
With all of the cloud platforms currently on the market, migrating applications from one to another can present challenges. This tutorial provides a step-by-step method of migrating a sample app from Heroku to IBM Bluemix.
Also available in: Chinese   Japanese  
18 May 2015
PHP renewed: Composer for PHP dependency handling
Today's complex PHP projects often use multiple third-party libraries that in turn have their own dependencies. Find out how Composer, an open source project built in PHP for the PHP community, takes the pain out of dependency handling for your modern PHP applications.
Also available in: Chinese   Russian   Japanese  
13 May 2015
Build a managed API with IBM Bluemix
Use the API Management service in Bluemix to create and publish your own APIs in the cloud. This tutorial helps you explore how API Management and Bluemix can help you participate in the API economy.
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13 May 2015
Build a data mining app using Java, Weka, and the dashDB service
The dashDB (formerly known as Analytics Warehouse and BLU Acceleration) service provides data warehousing and analytics as a service on IBM Bluemix. Developers can develop and deploy a heavy-duty analytic application using blazing-fast IBM BLU database technology offered in the cloud. Learn how to develop a data mining application using the Weka statistical analysis tool and leveraging the IBM BLU columnar database.
Also available in: Chinese   Chinese   Russian   Japanese   Portuguese   Spanish  
08 May 2015
Enable social network logins by using the Bluemix Single Sign On service
This tutorial shows you how to add user authentication to your IBM Bluemix applications by using Single Sign On services. Learn how to create and deploy a Node.js application, bind the Single Sign On service to the application, and add popular identity sources such as LinkedIn, Facebook, and Google+, or a custom Cloud Directory to your application.
Also available in: Chinese   Russian   Japanese  
04 May 2015
Build a remote-controlled Raspberry Pi 2 monitor for your IBM Cloud apps
Demystify the Internet of Things with a hands-on project that uses the IBM Watson IoT Platform to interconnect your devices and apps. Set up a Raspberry Pi 2 to monitor uptime and access time for a running IBM Cloud app, capturing the results in a graphing app that you can deploy to IBM Cloud. And code a desktop application that controls the Raspberry Pi 2 monitor remotely.
Also available in: Chinese   Russian   Japanese   Portuguese  
28 Apr 2015
Data integration at scale: Query RDF data with SPARQL
Now that you understand the Resource Description Framework (RDF) data model, learn ways to use the SPARQL Protocol and RDF Query Language (SPARQL) to get answers from RDF data sets. Later in this five-part series on data-integration standards and technologies, you'll put your SPARQL knowledge to work by querying Open Services for Lifecycle Collaboration (OSLC) data.
Also available in: Chinese   Japanese  
22 Apr 2015
PHP renewed: Password security in modern PHP
Keep your PHP web applications' passwords safe from hackers. PHP continues to evolve with the web, and more web applications need to store passwords securely. In the second installment of a four-part series on the new face of PHP, learn about the new password-handling features added in the PHP 5.5 release.
Also available in: Chinese   Russian   Japanese   Portuguese  
15 Apr 2015
Data integration at scale: Creating webs of data with RDF
In the first installment of a five-part series on data-integration standards and technologies, Brian Sletten introduces the Resource Description Framework (RDF) as the basis for a new set of standards called Open Services for Lifecycle Collaboration (OSLC). As part of the World Wide Web Consortium (W3C) Semantic Web technology stack, RDF is designed to facilitate information integration among multiple participants without the need for extensive precoordination.
Also available in: Chinese   Russian   Japanese   Portuguese  
31 Mar 2015
PHP renewed: The new face of PHP
PHP has evolved significantly since its early days as a templating language. In the first installment of a four-part series on modern-day PHP programming, PHP expert Eli White examines some of the advancements in PHP 5.3 and higher. Get up to speed on namespaces, traits, closures, generators, and more.
Also available in: Chinese   Russian   Japanese   Portuguese  
25 Mar 2015
Mastering MEAN: Managing authentication with OAuth and Passport
In the previous Mastering MEAN installment, you used Meetup.com's RESTful API to pull in JSON that contains meeting information. This time, you'll use Meetup.com's OAuth service to provide login capabilities.
Also available in: Chinese   Russian   Japanese   Portuguese  
13 Mar 2015
Create an IBM Watson explorer with React
Use the React library and Material-UI components to create an app on IBM Bluemix for exploring IBM Watson services.
Also available in: Chinese   Russian   Japanese   Portuguese  
27 Feb 2015
Build your first Node.js website, Part 2
Do you want to build a dynamic website with Node.js but are unsure where to start? This three-part article introduces you to Node.js development step by step, with no software installation required. Using only a web browser, you create a Node.js application, write server-side JavaScript, display dynamic data on HTML pages, and store data in a Redis database.
Also available in: Chinese   Russian   Japanese   Portuguese  
25 Feb 2015
Build your first Node.js website, Part 3
Do you want to build a dynamic website with Node.js but are unsure where to start? This three-part article introduces you to Node.js development step by step, with no software installation required. Using only a web browser, you create a Node.js application, write server-side JavaScript, display dynamic data on HTML pages, and store data in a Redis database.
Also available in: Chinese   Russian   Japanese   Portuguese  
25 Feb 2015
Mastering MEAN: MEAN meets Meetup.com and microdata
In the fourth Mastering MEAN installment, integrate your MEAN application with Meetup.com's RESTful API. Along the way, make your web page more search-engine friendly by mixing in a bit of microdata to mark up your HTML semantically.
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28 Oct 2014
Editors' picks: Top 13 Bluemix tutorials
If you've been following developerWorks over the last few months, you've noticed how excited we are about Bluemix, IBM's open-standards cloud platform. Using Bluemix, along with IBM, third-party, and open source services, you can build, deploy, run, and manage almost any kind of application you can dream of. We've published so much content about Bluemix and its many services and runtimes that we wanted to step back and give you a look at what we think are some of the very best tutorials we've published on this exciting topic. So here it is, the Bluemix Top 13 as chosen by the developerWorks editorial team!
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22 Sep 2014
Mastering MEAN: MEAN and UGLI CRUD with responsive web design
Series author Scott Davis introduces the User Group List and Integration (UGLI) application: software to help manage user groups. Explore the basic create, retrieve, update, and delete (CRUD) functionality of the MEAN stack, and get introduced to the responsive web design capabilities of the Bootstrap framework.
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16 Sep 2014
From the developerWorks trenches: The best open technologies content in 2014
As developerWorks celebrates its 15th anniversary, the technical landscape has never been more exciting or complex. Myriad products, projects, technologies, and techniques abound. Let us cut through the noise and provide a quick look at what's hot right now.
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16 Sep 2014
Mastering MEAN: Tour a MEAN application
In the first Mastering MEAN installment, you used a Yeoman generator to bootstrap a MEAN application. Now take a walking tour of the application, tracing the first incoming HTTP request from the server side (Node.js and Express) through to the client side (AngularJS).
Also available in: Chinese   Russian   Japanese  
11 Sep 2014
Mastering MEAN: Introducing the MEAN stack
Build a modern web application with MongoDB, Express, AngularJS, and Node.js in this six-part series by web development expert Scott Davis. This first installment includes a demo, sample code, and full instructions for creating a basic MEAN application. You'll also learn about Yeoman generators that you can use to bootstrap a new MEAN application quickly and easily.
Also available in: Chinese   Russian   Japanese  
09 Sep 2014
Create an HTML5 chat app on Bluemix with Node.js, Redis, and Socket.io
Create a mobile-friendly HTML5 chat app powered by a Redis service on IBM Cloud. You'll learn how to use the Node.js and Express module to build a server-side JavaScript application and how to update the client in real time using Web Sockets and Socket.io. When you're done, you'll see how you can deploy your app to the cloud in just one step using the IBM Cloud platform.
Also available in: Chinese   Russian   Japanese   Portuguese  
22 Jul 2014
Follow air traffic with a Flight Status and Tracking app built on Bluemix
Create this flight-tracking application that overlays the real-time location of flights as they approach a particular airport on Google Maps. It's a mashup of Bluemix services and external third-party APIs, including the Flight Status by Airport API, Google Maps API, and weather data, to create a unique system of engagement.
Also available in: Chinese   Russian   Japanese   Portuguese  
22 Jul 2014
Create high-performance mobile UIs with Famo.us
With the Famo.us platform, mobile web UIs written in JavaScript can be as compelling as native-code implementations. Work through this article's examples to find out how Famo.us helps you easily create a high-performance user experience in your mobile apps.
Also available in: Chinese   Russian   Japanese   Portuguese  
08 Jul 2014
Learn IBM Bluemix with a simple Node.js file-upload application
Write, deploy, run, and manage a simple Node.js file-upload application in BlueMix.
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30 Jun 2014
Build a portable Java travel app that integrates web services
Learn how to develop and deploy a Java PaaS web app on the cloud.
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27 Jun 2014
Build a reactive sales chart app with Meteor
Create and deploy your own single-page, interactive Meteor application in the cloud updated in real time with nothing more than your browser. Write your code on IBM Bluemix DevOps Services, use the IBM Bluemix MongoDB service for server-side storage, and deploy the app to Bluemix.
Also available in: Chinese   Russian   Japanese   Portuguese   Spanish  
27 Jun 2014
Build a custom YouTube playlist player
The embeddable YouTube playlist player doesn't have all the features of the native player. In this article, Joseph McCarthy shows how to use the YouTube API, jQuery, JsRender, and Bootstrap to create a more fully functional embedded player for YouTube playlists.
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27 Jun 2014
Build a real-time polls application with Node.js, Express, AngularJS, and MongoDB
Build a polling application that updates in real-time as votes roll in. The app I created has a simple architecture that uses JavaScript for everything. Node.js and Express power the back-end, and MongoDB stores the app's data. At the front-end, AngularJS and Bootstrap power the user interface, with Web Sockets enabling the voting to update clients in real-time.
Also available in: Chinese   Russian   Japanese   Portuguese   Spanish  
27 Jun 2014
Build a sentiment analysis application with Node.js, Express, sentiment, and ntwitter
Build a Node.js application to analyze public reaction to any given topic on Twitter. This article includes a demo, sample code, and full instructions for creating a basic PaaS app, then adding sentiment analysis to it and connecting it to Twitter. The app you build will use popular Node.js modules. You can reuse it anytime you need a quick mobile app to analyze and monitor large volumes of data over time.
Also available in: Chinese   Japanese  
27 Jun 2014
Build a simple notification service with Node.js and MongoDB
Need to corral a large, disparate set of tools across development groups? Try using a notification service to create, signal, and subscribe to events. It's not hard. I'll walk you through it.
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27 Jun 2014
Build and deploy a REST API on IBM IBM Cloud with PHP and MySQL
REST APIs are increasingly popular for library-agnostic data access and manipulation because they're easy to understand, can be coded quickly, and are usable across all programming languages via built-in HTTP support. This article shows you how to build and instantly deploy a REST API on IBM Cloud with PHP and MySQL. It implements the API using the Bullet micro-framework and Eloquent ORM, together with the PHP Cloud Foundry build pack and a bound MySQL service instance.
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26 Jun 2014
Prevent cross-site request forgery: Know the hidden danger in your browser tabs
Explore two strategies to help prevent cross-site request forgery attacks as you review a detailed, step-by-step cross-site request forgery attack scenario. Also, look at some issues for scanning tools as they try to find cross-site request forgery vulnerabilities.
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25 Mar 2014
Extract information from the web with Ruby
Explore the latest methods for extracting structured information from the web. Using Ruby script examples, author M. Tim Jones demonstrates scraping technology and the use of web APIs for targeted data retrieval.
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17 Dec 2013
Recommender systems, Part 1: Introduction to approaches and algorithms
Most large-scale commercial and social websites recommend options, such as products or people to connect with, to users. Recommendation engines sort through massive amounts of data to identify potential user preferences. This article, the first in a two-part series, explains the ideas behind recommendation systems and introduces you to the algorithms that power them. In Part 2, learn about some open source recommendation engines you can put to work.
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12 Dec 2013
Recommender systems, Part 2: Introducing open source engines
Part 1 of this series introduces the basic approaches and algorithms for the construction of recommendation engines. This concluding installment explores some open source solutions for building recommendation systems and demonstrates the use of two of them. The author also shows how to develop a simple clustering application in Ruby and apply it to sample data.
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12 Dec 2013
Rapid web development with Bootstrap
Learn how to use Bootstrap to kickstart websites and web applications, including mobile-friendly ones. Bootstrap, which is based on the LESS project, was developed by Twitter's internal engineers to provide a consistent framework for web application UIs.
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06 Aug 2013
HTML5 components: Implement standard components
In this series, HTML5 maven David Geary shows you how to implement HTML5 components. In this final installment, see how to implement components using the nascent HTML5 component specifications, with assistance from the Polymer and Mozilla X-Tags projects.
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23 Jul 2013
HTML5 2D game development: Wrapping up the game
In this series, HTML5 maven David Geary shows you how to implement an HTML5 2D video game one step at a time. This installment concludes the series by rounding out Snail Bail with important features and some aesthetic polish. Learn how to replace the game's background, fine-tune gameplay, keep score, dim controls, monitor frame rate, track lives, display credits, tweet scores, and deploy the game to a server.
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23 Jul 2013
Do more in CSS with LESS
Learn how to use LESS to write readable and maintainable Cascading Style Sheets (CSS) for modern websites. CSS makes the terrible old days of layout tricks with tables and invisible images a dim memory. But CSS is still unfriendly, and several initiatives tried to tame it for developers. One of the best is LESS, which extends CSS with dynamic behavior such as variables, mixins, operations, and functions. LESS is a CSS-like language that compiles seamlessly into CSS either on the client side or through server-side preprocessing.
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18 Jul 2013
Improve CSS development with Sass
Syntactically awesome stylesheets (Sass) is a meta-language and cascading stylesheets (CSS) preprocessor. Understanding Sass principles is your key to faster, more efficient CSS development. Sass provides simple, elegant, and robust syntax for CSS so you can create manageable stylesheets. Learn the basics of using Sass to improve the stylesheets for your website in this introduction.
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18 Jul 2013
Data visualization, Part 2: Use D3 component layouts
In this two-article series, learn how to use Scalable Vector Graphics (SVG) with the open source D3 JavaScript library to create data visualizations. Shapes, colors, and layouts can be of great help in making business sense out of data volumes. This article demonstrates various ways to arrange graphical components to represent your data on a canvas, using both D3's and your own calculations.
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15 Jul 2013
Data visualization, Part 1: Visualize browsing metrics with SVG and D3
In this two-article series, learn how to use Scalable Vector Graphics (SVG) with the open source D3 JavaScript library to create data visualizations. Shapes, colors, and layouts can be of great help in making business sense out of data volumes. An example scenario demonstrates the use of SVG and D3 for creating informative graphics out of browsing metrics for social media.
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15 Jul 2013
Use Doctrine with the Zend Framework
Doctrine is an object-relational mapping (ORM) tool for PHP application development. With a modicum of configuration, you can combine it with the Zend Framework so that you can use Doctrine entities to simplify interaction with application data. This article shows you the process for integrating Doctrine 2.3 with a Zend Framework 1.x or 2.x application.
Also available in: Japanese  
25 Jun 2013
HTML5 2D game development: Implement gravity and add sound
In this series, HTML5 maven David Geary shows you how to implement an HTML5 2D video game one step at a time. In this installment, you'll complete Snail Bait's mechanics by learning how to incorporate gravity when the runner falls. Then, you'll see how to implement sound -- both a musical soundtrack and sound effects.
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21 Jun 2013
Prototype web applications with CouchDB and Bootstrap
Combine Apache CouchDB with Twitter's Bootstrap to kickstart web application development in a way that cleanly separates the presentation and database layers. CouchDB is well-known as a relaxing way to develop databases, especially for websites. On the front end, more open source toolkits are emerging for prototyping sites, and even for full deployment. Among them, the Bootstrap framework is especially useful for working up web UIs. Learn how to build on Bootstrap while you use CouchDB for persistence.
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04 Jun 2013
HTML5 components: Ad-hoc components, Part 2
Finish implementing the sophisticated ad-hoc slider component introduced in "Ad-hoc components, Part 1." Learn how to incorporate event listeners, animate the slider's knob, and inject the slider into an existing Document Object Model (DOM) tree.
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07 May 2013
Introducing MicroXML, Part 2: Process MicroXML with microxml-js
MicroXML is a simplification of XML that is compatible with earlier versions. Part 1 of this two-article series covers the basic principles of MicroXML. MicroXML is designed with a straightforward grammar that can be processed with many modern general-purpose parsing tools. James Clark, who led the original push for MicroXML, is among those thinkers who developed a parser for the community specification. Learn how to use Clark's JavaScript MicroXML parser to experiment with the format.
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07 May 2013
Introducing MicroXML, Part 1: Explore the basic principles of MicroXML
Parts of the XML community always grumble that XML is difficult to understand and process. XML is fundamentally complex for various historical reasons, and people proposed simplified versions for more than a decade. JSON and HTML5 threaten some of the most basic XML tenets. MicroXML -- a simplification of XML that is compatible with earlier versions -- emerged from discussions of these issues. MicroXML is now under the guidance of a W3C community group, and several basic implementations are already available for the draft specification. In this first article of a two-part series, learn from one of the MicroXML Community Group co-chairs about MicroXML and its technical differences from the XML 1.x core standards.
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07 May 2013
Creating a Drupal multisite installation
One important feature of the Drupal content management system is that it enables you to run multiple websites from a single base installation of the framework -- a feature called multisite installations. Such installations are particularly useful to web administrators who have to manage and maintain several sites on a long-term basis, and the functionality simplifies the administration of multiple Drupal installations located on the same server by making all of them run from a single script. In this article, see how to install, configure, run, and administer multisite Drupal.
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30 Apr 2013
Get started with GeoServer and its REST API
GeoServer is an open source server for managing geographic information system (GIS) data sources and serving them easily through Web Feature Service (WFS) and Web Map Service (WMS) web services. It includes a comprehensive Representational State Transfer (REST) API for managing data at run time from complex web applications without manual intervention, and it works well in tandem with the OpenLayers mapping tool. This article introduces and explores GeoServer, including the benefits of creating a PHP wrapper class for the API.
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30 Apr 2013
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