In their early days, Twitter, Flickr, Etsy, and many other companies experienced sudden spikes in activity that took their web services down in minutes. Today, determining how much capacity you need for handling traffic surges is still a common frustration of operations engineers and software developers. This hands-on guide provides the knowledge and tools you need to measure, deploy, and manage your web application infrastructure before you experience explosive growth. In this thoroughly updated edition, authors Arun Kejariwal (MZ) and John Allspaw provide a systematic, robust, and practical approach to capacity planning-rather than theoretical models-based on their own experiences and those of many colleagues in the industry. They address the vast sea change in web operations, especially cloud computing. Understand issues that arise on heavily trafficked websites or mobile apps Explore how capacity fits into web/mobile app availability and performance Use tools for measuring and monitoring computer performance and usage Turn measurement data into robust forecasts and learn how trending fits into the planning process Examine related deployment concepts: installation, configuration, and management automation Learn how cloud autoscaling enables you to scale your app's capacity up or down

Certifiable Software Applications 1: Main Processes is dedicated to the establishment of quality assurance and safety assurance. It establishes the context for achieving a certifiable software application. In it, the author covers recent developments such as the module, component and product line approach. Applicable standards are presented and security principles are described and discussed. Finally, the requirements for mastering quality and configuration are explained. In this book the reader will find the fundamental practices from the field and an introduction to the concept of software application.

Welcome to this one-stop shop for learning Angular. Pro Angular is the most concise and comprehensive guide available, giving you the knowledge you need to take full advantage of this popular framework for building your own dynamic JavaScript applications. Angular is an open-source JavaScript library maintained by Google. It has many excellent options when it comes to server-side development and is used in some of the largest and most complex web applications in the world to enhance HTML in the browser. Its cornerstone is the ability to create applications that are extendable, maintainable, testable, and standardized. Knowing Angular's foundations and understanding its applications is an asset in any developer toolbox. The fifth edition of this popular guide explains how to get the most from Angular, presenting the range of benefits it can offer. You will begin learning how to use Angular in your projects, starting with the nuts-and-bolts concepts, and progressing to more advanced and sophisticated features. Each topic in this full-color book provides you with precisely enough learning and detail to be effective. In true Adam Freeman style, the most important features are given full-court press treatment, while also addressing common problems and how to avoid them. What You Will Learn Access accompanying online files for Angular 13 and 14 (when it is released) Create rich and dynamic web app clients using Angular Tap into some of the best aspects of server-side development Know when to use Angular and when to seek an alternative Use the ng tools to create and build an Angular project Extend and customize Angular Take advantage of popular component libraries Utilize source code located at github.com/Apress/pro-angular-5ed Who This Book Is For This book is for web developers who want to create rich client-side applications. Foundational knowledge of HTML and JavaScript is recommended. "Adam's books provide a finely tuned blend of architectural overview, technical depth, and experience-born wisdom. His clear, concise writing style, coupled with project-driven, real-world examples make me comfortable recommending his books to a broad audience, ranging from developers working with a technology for the first time to seasoned professionals who need to learn a new skill quickly." Keith Dublin, Staff Architect, Upfront Health Care "Adam's books are the print version of a chat bot. His investment in learning how developers learn pays off in dividends, making this one of the most comprehensive resources available. Novices and experienced professionals alike will gain knowledge from the accessible and insightful material." Mark Donile, Software Engineer, MS CS

Exam topics covered include tasks and scheduling, remoting, the Spring Web Services framework, RESTful services with Spring MVC, the Spring JMS module, JMS and JTA transactions with Spring, batch processing with Spring Batch and the Spring Integration framework. Prepare with confidence for the Pivotal Enterprise Integration with Spring Exam. One of the important aspects of this book is a focus on new and modern abstractions provided by Spring. Therefore most of the features are shown with Java annotations alongside established XML configurations. Most of the examples in the book are also based on the Spring Boot framework. Spring Boot adoption is exponential because of its capability to significantly simplify Spring configuration using sensible opinionated defaults. But Spring Boot is not the target of the exam, therefore all the features are also covered with plain Spring configuration examples. How to use Spring to create concurrent applications and schedule tasks How to do remoting to implement client-server applications How to work with Spring Web services to create loosely coupled Web services and clients How to use Spring MVC to create RESTful web services and clients How to integrate JMS for asynchronous messaging-based communication How to use local JMS transactions with Spring How to configure global JTA transactions with Spring How to use Spring Integration to create event-driven pipes-and-filters architectures and integrate with external applications How to use Spring Batch for managed, scalable batch processing that is based on both custom and built-in processing components

Create high-performance, visually stunning 3D applications for the Web, using HTML5 and related technologies such as CSS3 and WebGL--the emerging web graphics standard. With this book, you'll learn how to use the tools, frameworks, and libraries for building 3D models and animations, mind-blowing visual effects, and advanced user interaction in both desktop and mobile browsers.

In two parts--Foundations and Application Development Techniques--author Tony Parisi provides a thorough grounding in theory and practice for designing everything from a simple 3D product viewer to immersive games and interactive training systems. Ideal for developers with Javascript and HTML experience.Explore HTML5 APIs and related technologies for creating 3D web graphics, including WebGL, Canvas, and CSSWork with the popular JavaScript 3D rendering and animation libraries Three.js and Tween.jsDelve into the 3D content creation pipeline, and the modeling and animation tools for creating killer 3D contentLook into several game engines and frameworks for building 3D applications, including the author's Vizi frameworkCreate 3D environments with multiple objects and complex interaction, using examples and supporting codeExamine the issues involved in building WebGL-based 3D applications for mobile browsers

Whether you're a marketer with development skills or a full-on web developer/analyst, Practical Google Analytics and Google Tag Manager for Developers shows you how to implement Google Analytics using Google Tag Manager to jumpstart your web analytics measurement. There's a reason that so many organizations use Google Analytics. Effective collection of data with Google Analytics can reduce customer acquisition costs, provide priceless feedback on new product initiatives, and offer insights that will grow a customer or client base. So where does Google Tag Manager fit in? Google Tag Manager allows for unprecedented collaboration between marketing and technical teams, lightning fast updates to your site, and standardization of the most common tags for on-site tracking an d marketing efforts. To achieve the rich data you're really after to better serve your users' needs, you'll need the tools Google Tag Manager provides for a best-in-class implementation of Google Analytics measurement on your site. Written by data evangelist and Google Analytics expert Jonathan Weber and the team at LunaMetrics, this book offers foundational knowledge, a collection of practical Google Tag Manager recipes, well-tested best practices, and troubleshooting tips to get your implementation in tip-top condition. It covers topics including: * Google Analytics implementation via Google Tag Manager * How to customize Google Analytics for your unique situation * Using Google Tag Manager to track and analyze interactions across multiple devices and touch points * How to extract data from Google Analytics and use Google BigQuery to analyze Big Data questions What You'll Learn Implementation approaches for Google Analytics, including common pitfalls and troubleshooting strategies. How to use tools like Google Tag Manager and jQuery to jumpstart your Google Analytics implementation. How to track metrics beyond page views to other critical user interactions, such as clicks on outbound links or downloads, scrolling and page engagement, usage of AJAX forms, and much more. How to incorporate additional, customized data into Google Analytics to track individual users or enrich data about their behavior. Who This Book Is For Web developers, data analysts, and marketers with a basic familiarity with Google Analytics from an end-user perspective, as well as some knowledge of HTML and JavaScript.

Gain an in-depth understanding of PHP 7 arrays. After a quick overview of PHP 7, each chapter concentrates on single, multi-dimensional, associative, and object arrays. PHP Arrays is a first of its kind book using PHP 7 that demonstrates inserting, appending, updating, and deleting array data. This book also covers validation methods to insure that the data provided by a user is good before the data is entered into an array. You'll see how PHP 7 try/catch modules are used to capture exceptions and errors that may be caused by invalid data. The code examples demonstrate common real-world scenarios. Moreover, examples of every PHP 7 array function (over 75) are demonstrated. The appendix provides a two-dimensional array case study on the logical design of a checkers game. PHP Arrays answers the following questions: Why do we need arrays? When do we need to use arrays? Are arrays efficient? Can arrays reduce coding time? When do you use multi-dimensional and associative arrays? What is an object array? What You'll Learn Handle array data from an HTML form Manage array data from a text file Deal with array data from a MySQL database Who This Book Is For Experienced PHP programmers or web developers using PHP.

Is Ajax a new technology, or the same old stuff web developers have been using for years? Both, actually. This book demonstrates not only how tried-and-true web standards make Ajax possible, but how these older technologies allow you to give sites a decidedly modern Web 2.0 feel. Ajax: The Definitive Guide explains how to use standards like JavaScript, XML, CSS, and XHTML, along with the XMLHttpRequest object, to build browser-based web applications that function like desktop programs. You get a complete background on what goes into today's web sites and applications, and learn to leverage these tools along with Ajax for advanced browser searching, web services, mashups, and more. You discover how to turn a web browser and web site into a true application, and why developing with Ajax is faster, easier and cheaper. The book also explains: * How to connect server-side backend components to user interfaces in the browser * Loading and manipulating XML documents, and how to replace XML with JSON * Manipulating the Document Object Model (DOM) * Designing Ajax interfaces for usability, functionality, visualization, and accessibility * Site navigation layout, including issues with Ajax and the browser's back button * Adding life to tables & lists, navigation boxes and windows * Animation creation, interactive forms, and data validation * Search, web services and mash-ups * Applying Ajax to business communications, and creating Internet games without plug-ins * The advantages of modular coding, ways to optimize Ajax applications, and more This book also provides references to XML and XSLT, popular JavaScript Frameworks, Libraries, and Toolkits, and various Web Service APIs. By offering web developers a much broader set of tools and options, Ajax gives developers a new way to create content on the Web, while throwing off the constraints of the past. Ajax: The Definitive Guide describes the contents of this unique toolbox in exhaustive detail, and explains how to get the most out of it.

There's plenty of documentation on installing and configuring the Apache web server, but where do you find help for the day-to-day stuff, like adding common modules or fine-tuning your activity logging? That's easy. The new edition of the Apache Cookbook offers you updated solutions to the problems you're likely to encounter with the new versions of Apache. Written by members of the Apache Software Foundation, and thoroughly revised for Apache versions 2.0 and 2.2, recipes in this book range from simple tasks, such installing the server on Red Hat Linux or Windows, to more complex tasks, such as setting up name-based virtual hosts or securing and managing your proxy server. Altogether, you get more than 200 timesaving recipes for solving a crisis or other deadline conundrums, with topics including: * Security * Aliases, Redirecting, and Rewriting * CGI Scripts, the suexec Wrapper, and other dynamic content techniques * Error Handling * SSL * Performance This book tackles everything from beginner problems to those faced by experienced users. For every problem addressed in the book, you will find a worked-out solution that includes short, focused pieces of code you can use immediately. You also get explanations of how and why the code works, so you can adapt the problem-solving techniques to similar situations. Instead of poking around mailing lists, online documentation, and other sources, rely on the Apache Cookbook for quick solutions when you need them. Then you can spend your time and energy where it matters most.

This book constitutes the thoroughly refereed post-conference proceedings of Current Trends in Web Engineering, ICWE Workshops 2015 which was held in June 2015 in Rotterdam, The Netherlands. The 16 revised full papers were selected form 23 submissions and cover topics on natural language processing for informal text, pervasive Web technologies, trends and challenges, and mining in the social Web.

This book constitutes the thoroughly refereed proceedings of the 6th International Conference on e-Infrastructure and e-Services for Developing Countries, AFRICOMM 2014, held in Kampala, Uganda, November 24-25, 2014. The 31 revised full papers were carefully selected from 57 submissions and cover topics such as communication infrastructure, health, IoT, cloud computing and TVWS, ICT4D applications, access to information, and ICT4D miscellaneous.

Tips, tricks, and little-known methods used by professional SEO consultants to rank in some of the most competitive search phrases Search engine optimization (SEO) is the process of creating, formatting and promoting web pages in a manner that ensures that they are ranked highly for chosen keyword phrases after a user performs a Web search. This unique book taps the relatively unknown market of advanced SEO knowledge, and reveals secrets used by only the best SEO consultants. You'll take your Internet marketing skills to the next level as you gain a thorough understanding of standard SEO techniques such as on-page optimization, off-page optimization, and link building. Packed with real-world examples, this essential guide demonstrates how real SEO consultants work with Fortune 500 companies to get the results they desire. Coverage includes: * Understanding Search Engine Optimization * Relearning How You See the Web * Picking the Right SEO Tools * Finding SEO Problems * Solving SEO Problems * SEO Best Practices * The SEO Consulting Process * Comprehensive Site Audit (Informational Website) * Comprehensive Site Audit (E-Commerce Website) * Understanding the SEO Industry * Search Engine Verticals * Optimizing for Alternative Search Engines * Setting Up a Testing Platform * SEO Resources * Attending SEO Conferences

This book constitutes the refereed proceedings of the 15th International Conference on Web Engineering, ICWE 2015, held in Rotterdam, The Netherlands, in June 2015. The 26 full research papers, 11 short papers, 7 industry papers, 11 demonstrations, 6 posters and 4 contributions to the PhD symposium presented were carefully reviewed and selected from 100 submissions. Moreover 2 tutorials are presented. The papers focus on eight tracks, namely Web application modeling and engineering; mobile Web applications; social Web applications; semantic Web applications; quality and accessibility aspects of Web applications; Web applications composition and mashups; Web user interfaces; security and privacy in Web applications.

Beginning Amazon Web Services with Node.js teaches any novice Node.js developer to configure, deploy, and maintain scalable small to large scale Node.js applications in Amazon Web Services. Hosting a Node.js application in a production environment usually means turning to PaaS hosting, but this approach brings problems. Deploying Node.js directly to AWS solves the problems you encounter in these situations, enabling you to cut out the middle man. You will begin with a basic RESTful web service in Node.js, using the popular Express.js framework, pre-built and ready to run in your local environment. You will be introduced to the most powerful tools in AWS, and learn how to configure your project to take advantage of them. You will be guided through the steps of getting the various key components to work together on AWS. Through code samples using the AWS JavaScript SDK and tutorials in the AWS console, you will gain the knowledge to incorporate secure user authentication, server auto-scaling, a load balancer, CDN, customized caching behavior, and outage monitoring. Node.js is single-threaded, and designed to run high input / high output applications, making it ideal for the cloud environment. If your main task is handling a high volume of requests over HTTP / the web, it will scale very well in proportion to the computing power you allocate to it. Amazon Web Services offers a broad set of services that help organizations move faster, lower costs, and scale applications. Trusted by the largest enterprises and start-ups alike, AWS powers a wide variety of workloads across a broad spectrum. If leveraged properly, you can build a Node.js app on AWS which can automatically power itself up to handle a massive volume of traffic, and then scale back down to a lighter configuration when user demand has dropped. Amazon Web Services offers a broad set of services that help organizations move faster, lower costs, and scale applications. Get started with Node.js and AWS using this book today.

Learn all that's needed to build a fully functional web application from scratch. Key Features Delve deep into the principle behind RESTful API Learn how to build a scalable web application with the RESTful API architecture and Flask framework Know what are the exact tools and methodology to test your applications and how to use them Book DescriptionPython is a flexible language that can be used for much more than just script development. By knowing the Python RESTful APIs work, you can build a powerful backend for web applications and mobile applications using Python. You'll take your first steps by building a simple API and learning how the frontend web interface can communicate with the backend. You'll also learn how to serialize and deserialize objects using the marshmallow library. Then, you'll learn how to authenticate and authorize users using Flask-JWT. You'll also learn how to enhance your APIs by adding useful features, such as email, image upload, searching, and pagination. You'll wrap up the whole book by deploying your APIs to the cloud. By the end of this book, you'll have the confidence and skill to leverage the power of RESTful APIs and Python to build efficient web applications. What you will learn Understand the concept of a RESTful API Build a RESTful API using Flask and the Flask-Restful extension Manipulate a database using Flask-SQLAlchemy and Flask-Migrate Send out plaintext and HTML format emails using the Mailgun API Implement a pagination function using Flask-SQLAlchemy Use caching to improve API performance and efficiently obtain the latest information Deploy an application to Heroku and test it using Postman Who this book is forThis book is ideal for aspiring software developers who have a basic-to-intermediate knowledge of Python programming and who want to develop web applications using Python. Knowledge of how web applications work will be beneficial but is not essential.

Designers, developers, and entrepreneurs today must grapple with creating social interfaces to foster user interaction and community, but grasping the nuances and the building blocks of the digital social experience is much harder than it appears. Now you have help. In the second edition of this practical guide, UX design experts Christian Crumlish and Erin Malone share hard-won insights into what works, what doesn't, and why. With more than 100 patterns, design principles, and best practices, you'll learn how to balance opposing forces and grow healthy online communities by co-creating the experience with your users. Understand the overarching principles before applying tactical design patterns Cultivate healthy participation and rein in misbehaving users Learn patterns for adding social components to an existing site Encourage users to interact with one another, whether it's one-to-one or many-to-many Use a rating system to build a social experience around products or services Orchestrate collaborative groups and discover the real power of social networks Explore numerous examples of each pattern, with an emphasis on mobile apps Learn how to apply social design patterns to enterprise environments

Beginning JSON is the definitive guide to JSON - JavaScript Object Notation - today's standard in data formatting for the web. The book starts with the basics, and walks you through all aspects of using the JSON format. Beginning JSON covers all areas of JSON from the basics of data formats to creating your own server to store and retrieve persistent data. Beginning JSON provides you with the skill set required for reading and writing properly validated JSON data. The first two brief chapters of the book contain the foundations of JavaScript as it relates to JSON, and provide the necessary understandings for later chapters. Chapters 3 through 12 reveal what data is, how to convert that data into a transmittable/storable format, how to use AJAX to send and receive JSON, and, lastly, how to reassemble that data back into a proper JavaScript object to be used by your program. The final chapters put everything you learned into practice.

This book constitutes the thoroughly refereed proceedings of the 5th International Conference on e-Infrastructure and e-Services for Developing Countries, AFRICOMM 2013, held in Blantyre, Malawi, in November 2013. The 32 revised full papers presented were carefully reviewed and selected from 94 submissions. The papers discuss issues and trends, resent research, innovation advances and on-the-field experiences related to e-governance, e-infrastructure, and e-business with a focus on developing countries.

This book constitutes the refereed proceedings of the 14th International Conference on Web Engineering, ICWE 2014, held in Toulouse, France, in July 2014. The 20 full research papers, 13 late breaking result papers, 15 poster papers, and 4 contributions to the PhD symposium presented were carefully reviewed and selected from 100 submissions. Moreover 3 tutorials and 3 workshops are presented. The papers focus on six research tracks, namely cross-media and mobile Web applications, HCI and the Web, Modelling and Engineering Web applications, quality aspects of Web applications, social Web applications, Web applications composition and mashups.

Learn the nuts and bolts of cloud computing with Windows Azure, Microsoft's new Internet services platform. Written by a key member of the product development team, this book shows you how to build, deploy, host, and manage applications using Windows Azure's programming model and essential storage services.

Chapters in "Programming Windows Azure" are organized to reflect the platform's buffet of services. The book's first half focuses on how to write and host application code on Windows Azure, while the second half explains all of the options you have for storing and accessing data on the platform with high scalability and reliability. Lots of code samples and screenshots are available to help you along the way. Learn how to build applications using the Windows Azure toolset Discover how Windows Azure works under the hood, and learn the how and the why behind several features Choose to write application code in .NET or other languages such as C/C++, PHP, or Ruby Understand the various options for managing your service Get up to speed on Azure's storage services, including blobs, queues, and tables Build a secure backup system, and learn about cloud application security, cryptography, and performance

Do you have a biological question that could be readily answered by computational techniques, but little experience in programming? Do you want to learn more about the core techniques used in computational biology and bioinformatics? Written in an accessible style, this guide provides a foundation for both newcomers to computer programming and those interested in learning more about computational biology. The chapters guide the reader through: a complete beginners' course to programming in Python, with an introduction to computing jargon; descriptions of core bioinformatics methods with working Python examples; scientific computing techniques, including image analysis, statistics and machine learning. This book also functions as a language reference written in straightforward English, covering the most common Python language elements and a glossary of computing and biological terms. This title will teach undergraduates, postgraduates and professionals working in the life sciences how to program with Python, a powerful, flexible and easy-to-use language.

Kafka in Action is a practical, hands-on guide to building Kafka-based data pipelines. Filled with real-world use cases and scenarios, this book probes Kafka's most common use cases, ranging from simple logging through managing streaming data systems for message routing, analytics, and more. In systems that handle big data, streaming data, or fast data, it's important to get your data pipelines right. Apache Kafka is a wicked-fast distributed streaming platform that operates as more than just a persistent log or a flexible message queue. Key Features * Understanding Kafka's concepts * Implementing Kafka as a message queue * Setting up and executing basic ETL tasks * Recording and consuming streaming data * Working with Kafka producers and consumers from Java applications * Using Kafka as part of a large data project team * Performing Kafka developer and admin tasks Written for intermediate Java developers or data engineers. No prior knowledge of Kafka is required. About the technology Apache Kafka is a distributed streaming platform for logging and streaming data between services or applications. With Kafka, it's easy to build applications that can act on or react to data streams as they flow through your system. Operational data monitoring, large scale message processing, website activity tracking, log aggregation, and more are all possible with Kafka. Dylan Scott is a software developer with over ten years of experience in Java and Perl. His experience includes implementing Kafka as a messaging system for a large data migration, and he uses Kafka in his work in the insurance industry.

"Swing Hacks" helps Java developers move beyond the basics of Swing, the graphical user interface (GUI) standard since Java 2. If you're a Java developer looking to build enterprise applications with a first-class look and feel, Swing is definitely one skill you need to master. This latest title from O'Reilly is a reference to the cool stuff in Swing. It's about the interesting things you learn over the years--creative, original, even weird hacks--the things that make you say, "I didn't know you could even do that with Swing!"

"Swing Hacks" will show you how to extend Swing's rich component set in advanced and sometimes non-obvious ways. The book touches upon the entire Swing gamut-tables, trees, sliders, spinners, progress bars, internal frames, and text components. Detail is also provided on JTable/JTree, threaded component models, and translucent windows. You'll learn how to filter lists, power-up trees and tables, and add drag-and-drop support.

"Swing Hacks" will show you how to do fun things that will directly enhance your own applications. Some are visual enhancements to make your software look better. Some are functional improvements to make your software do something it couldn't do before. Some are even just plain silly, in print only to prove it could be done. The book will also give you give you a small glimpse of the applications coming in the future. New technology is streaming into the Java community at a blistering rate, and it gives application developers a whole new set of blocks to play with.

With its profusion of tips and tricks, "Swing Hacks" isn't just for the developer who wants to build a better user interface. It's also ideally suited for client-sideJava developers who want to deliver polished applications, enthusiasts who want to push Java client application boundaries, and coders who want to bring powerful techniques to their own applications.

Whatever your programming needs, "Swing Hacks" is packed with programming lessons that increase your competency with interface-building tools.