Get ready to go from the basics of using Ansible to becoming proficient at implementing configuration management in your projects. This book begins with the basics of Ansible, providing you with details on how to install and configure your environment while working with different Ansible modules from the command line. Next, it introduces you to working with Ansible tasks and organizing configuration code into playbooks. You'll then learn how to extend playbooks further, using roles and templates within the configuration code. Author Vincent Sesto then extends your knowledge further by covering custom Ansible modules using Python and Linux shell scripts and demonstrating how you can start to keep your secret values encrypted and secure using Ansible Vault. You'll also develop Ansible roles with the use of Ansible Galaxy to reuse existing roles that others have created. This updated edition reflects changes added in the latest version of Ansible (2.9). It also includes an expanded chapter on testing Ansible using Molecule and managing large server environments using applications like Ansible Tower. What Will You Learn Understand what Ansible is and how to install and run your first basic command line commands Expand your configuration management using Ansible playbooks, roles and templates Customize your code further using Ansible Vault and third-party roles in Ansible Galaxy. Work with Ansible in managing cloud infrastructure, specifically in Amazon Web Services Troubleshoot your Ansible code and use frameworks like Molecule and Testinfra to help test your code changes Manage large server environments using real-world examples and extend your configurations using an application like Ansible Tower Who This Book Is For Systems Engineers, Developers, DevOps Engineers and Software Administrators.

This book shows Oracle Application Express (APEX) developers how to take advantage of Oracle Cloud Infrastructure (OCI) features for APEX that might otherwise go missed. You will learn how to use OCI features for data science tasks such as detecting anomalies in your data, training machine learning models, and much more. The book provides an in-depth look at Oracle Cloud features and demonstrates how they can be easily integrated into an APEX application. While the book focuses on developing for APEX, the approaches covered in the book are also applicable to any other modern web developer framework for applications running on the OCI platform. For many organizations, the database is the heart of operations. Those who opt to invest in the Oracle Database can learn from this book how to maximize their return on investment. The book begins with an introduction to OCI and help on setting up your OCI developer environment. From there you'll begin with security by learning to provide single sign-on via the Oracle Identity Cloud Service. Subsequent chapters take you through cloud-focused features such as Object Storage, Oracle Function, Oracle Machine Learning REST Services, and Oracle Cloud Anomaly Detection. You'll even learn to troubleshoot email delivery services. What You Will Learn Be aware of Oracle Cloud Infrastructure features for developers Integrate with cloud native services such as cloud-based object storage and serverless functions Enhance APEX applications with machine learning features Implement Natural Language Processing and Anomaly Detection Algorithms Troubleshoot email delivery services when sending emails using the APEX_MAIL package Design and implement an APEX environment that is secure Who This Book Is For APEX developers who are looking to extend their application's capabilities using features and resources available through the Oracle Cloud, and cloud solutions architects who support development teams and help design and implement architectures that benefit business operations

* Covers the most up-to-date versions of the technology. * Teaches subject using real world tutorials. * Subject is taught in a very concise, no-nonsense fashion, wasting little time on history and other fluff. Book is therefore compact and portable. It gives you just what you need. * Demystifies what is sometimes thought of as an intimidating subject. * Covers Apache for Windows, Mac/Unix, and Linux. * Full book support available online and via e-mail.

* The complete solution! This revolution in product design incorporates 6 books in 1 straightforward desk reference. Provides in depth coverage of the many features and specifications of XML, the data interchange standard of choice.
* XML All in One For Dummies is a true desk reference designed to guide readers through the features and specifications of the leading edge XML dialects and help them develop their own custom Web applications all under one cover.
* Covers XML basics, using DTD's with XML, XML namespaces, XML schemas, styling XML documents, XML's linking languages, XML tools, using XML in the real world, and more.
* The first two editions of XML For Dummies have sold more than 85,000 units.
* According to Microsoft's CEO Steve Ballmer "XML will become the universal medium by which Web sites and users of Web sites communicate."
* Written by NIIT a global training, IT consulting and software development organization. NIIT trains over 150,000 individuals each year in Information Technology areas.
* The For Dummies series a repeat winner, now with more than 100 million books in print.

JavaScript Creativity teaches you how to use every feature of this versatile and powerful language in exciting and creative ways. JavaScript can be used for so much more than simple interactivity. Master your use of canvas, animation, audio and video, 3D visualizations, motion detection and real-time collaboration. In every chapter of this book you will learn how to use and evolve JavaScript's creative capabilities in your own projects, as well as having project examples to follow throughout. Specifically, you will learn how to: Expertly use canvas and animation Push audio and video to their full capabilities Code and manipulate advanced 3D visualizations Create your own music directly from the browser Implement real-time collaboration with Node.js Explore real-time audio and video with WebRTC Play with motion detection and gesture control Combine all features into one social music creation experiment, similar to Google's 'Jam with Chrome' JavaScript Creativity is for the developer who has a working knowledge of JavaScript and wants to take their code to the next level. Every feature explored can be manipulated and implemented in your everyday projects to really impress your clients or just increase your code skill. This book is an exciting, action-packed introduction to all the advanced and truly creative aspects of this language - start creative coding today!

As web applications grow, so do the challenges. These applications need to live up to demanding performance requirements, and be reliable around the clock every day of the year. And they need to withstand frequent modifications by many different programmers. If you're building a mission-critical site, this book will help you achieve the same rigor in web applications that developers have traditionally applied to other types of software. Written by a manager at Yahoo who has substantial experience with the techniques presented in this book, "Developing Large Web Applications" provides you with practical steps for building sites that remain effective as they add features, functions, and users. Avoid the usual coding and maintenance headaches when small websites evolve and add pages, code, and programmers. Learn the virtues of modularity, encapsulation, abstraction, and loosely coupled components. Get comprehensive coverage of issues involving HTML, CSS, PHP, JavaScript and Ajax, and database interaction. Learn solid techniques in code management and software engineering that are often unknown or forgotten by web developers.

This is an exciting time to learn JavaScript. Now that the latest JavaScript specification-ECMAScript 6.0 (ES6)-has been finalized, learning how to develop high-quality applications with this language is easier and more satisfying than ever. This practical book takes programmers (amateurs and pros alike) on a no-nonsense tour of ES6, along with some related tools and techniques. Author Ethan Brown (Web Development with Node and Express) not only guides you through simple and straightforward topics (variables, control flow, arrays), but also covers complex concepts such as functional and asynchronous programming. You'll learn how to create powerful and responsive web applications on the client, or with Node.js on the server. Use ES6 today and transcompile code to portable ES5 Translate data into a format that JavaScript can use Understand the basic usage and mechanics of JavaScript functions Explore objects and object-oriented programming Tackle new concepts such as iterators, generators, and proxies Grasp the complexities of asynchronous programming Work with the Document Object Model for browser-based apps Learn Node.js fundamentals for developing server-side applications

How can you take advantage of the HipHop Virtual Machine (HHVM) and the Hack programming language, two new technologies that Facebook developed to run their web servers? With this practical guide, Owen Yamauchi-a member of Facebook's core Hack and HHVM teams-shows you how to get started with these battle-tested open-source tools. You'll explore static typechecking and several other features that separate Hack from its PHP origins, and learn how to set up, configure, deploy, and monitor HHVM. Ideal for developers with basic PHP knowledge or experience with other languages, this book also demonstrates how these tools can be used with existing PHP codebases and new projects alike. Learn how Hack provides static typechecking while retaining PHP's flexible, rapid development capability Write typesafe code with Hack's generics feature Explore HHVM, a just-in-time compilation runtime engine with full PHP compatibility Dive into Hack collections, asynchronous functions, and the XHP extension for PHP Understand Hack's design rationale, including why it omits some PHP features Use Hack for multitasking, and for generating HTML securely Learn tools for working with Hack code, including PHP-to-Hack migration

Embark on a practical journey of building dynamic sites aided by multiple projects that can be easily adapted to real-world scenarios. This third edition will show you how to become a confident PHP developer, ready to take the next steps to being a Full Stack Developer and/or successful website or web application programmer. You won't be swamped with every detail of the full PHP language up front - instead, you'll be introduced to a small, versatile subset of PHP by learning to use it creatively to develop dynamic projects. You will see how to use variables, control structures, functions, and object-oriented programming. Secure programming techniques are used throughout the book to demonstrate the proper way to defend against hackers. You will learn how to plan and create MySQL/MariaDB databases and access them using PHP. During this process, you will be introduced to data objects, UI design concepts, and design patterns. Model-View-Controller (MVC) methodology will be used to keep a consistent logical design for each project. Four main projects will be introduced: an image gallery, a blogging system, a data management dashboard, and an interactive game. Initially, a general discussion of how operating systems make programming easier, more reliable, and efficient will be provided. A brief example will follow to demonstrate installation of the latest versions of Apache, PHP, and MySQL/MariaDB. Basic PHP logic will be used during the development of the first project, an image gallery. Once these concepts have been absorbed, a further review of additional concepts of PHP 8 will be discussed, followed by an extensive blogging system will use MVC to reinforce and introduce additional PHP techniques. You'll also discover the use of Google Charts to create a data management dashboard. Finally, you'll explore arrays in more depth by developing logic for a checkers game. Along the way, exercises and projects are provided to reinforce what has been learned. What You'll Learn Explore the basics of PHP syntax, structures, functions, modules and more Design and develop of interactive UIs Build dynamic UIs using SQL to access MySQL/MariaDB Databases Understand the development of secure and efficient Object-Oriented classes and objects Apply the knowledge learned when creating four real-world PHP projects Who This Book Is For Aspiring web developers and designers who are new to web development and/or PHP; programmers who are new to PHP and even programming itself.

Want to learn how to create great user experiences on today's Web? In this book, UI experts Bill Scott and Theresa Neil present more than 75 design patterns for building web interfaces that provide rich interaction. Distilled from the authors' years of experience at Sabre, Yahoo!, and Netflix, these best practices are grouped into six key principles to help you take advantage of the web technologies available today. With an entire section devoted to each design principle, Designing Web Interfaces helps you: Make It Direct-Edit content in context with design patterns for In Page Editing, Drag & Drop, and Direct Selection Keep It Lightweight-Reduce the effort required to interact with a site by using In Context Tools to leave a "light footprint" Stay on the Page-Keep visitors on a page with overlays, inlays, dynamic content, and in-page flow patterns Provide an Invitation-Help visitors discover site features with invitations that cue them to the next level of interaction Use Transitions-Learn when, why, and how to use animations, cinematic effects, and other transitions React Immediately-Provide a rich experience by using lively responses such as Live Search, Live Suggest, Live Previews, and more

Designing Web Interfaces illustrates many patterns with examples from working websites. If you need to build or renovate a website to be truly interactive, this book gives you the principles for success.

This book explains how to see one's own network through the eyes of an attacker, to understand their techniques and effectively protect against them. Through Python code samples the reader learns to code tools on subjects such as password sniffing, ARP poisoning, DNS spoofing, SQL injection, Google harvesting, Bluetooth and Wifi hacking. Furthermore the reader will be introduced to defense methods such as intrusion detection and prevention systems and log file analysis by diving into code.

Treat yourself to a lively, intuitive, and easy-to-follow introduction to computer programming in Python. The book was written specifically for biologists with little or no prior experience of writing code - with the goal of giving them not only a foundation in Python programming, but also the confidence and inspiration to start using Python in their own research. Virtually all of the examples in the book are drawn from across a wide spectrum of life science research, from simple biochemical calculations and sequence analysis, to modeling the dynamic interactions of genes and proteins in cells, or the drift of genes in an evolving population. Best of all, Python for the Life Sciences shows you how to implement all of these projects in Python, one of the most popular programming languages for scientific computing. If you are a life scientist interested in learning Python to jump-start your research, this is the book for you. What You'll Learn Write Python scripts to automate your lab calculations Search for important motifs in genome sequences Use object-oriented programming with Python Study mining interaction network data for patterns Review dynamic modeling of biochemical switches Who This Book Is For Life scientists with little or no programming experience, including undergraduate and graduate students, postdoctoral researchers in academia and industry, medical professionals, and teachers/lecturers. "A comprehensive introduction to using Python for computational biology... A lovely book with humor and perspective" -- John Novembre, Associate Professor of Human Genetics, University of Chicago and MacArthur Fellow "Fun, entertaining, witty and darn useful. A magical portal to the big data revolution" -- Sandro Santagata, Assistant Professor in Pathology, Harvard Medical School "Alex and Gordon's enthusiasm for Python is contagious" -- Glenys Thomson Professor of Integrative Biology, University of California, Berkeley

Welcome to .NET 6, Microsoft's unified framework that converges the best of the modern and traditional .NET Framework. This book will introduce you to the new aspects of Microsoft's fully supported .NET 6 Framework and will teach you how to get the most out of it. You will learn about the progress to one unified .NET, including MAUI and the revival of desktop development. You will dive into Roslyn, Blazor, CLI, Containers, Cloud, and much more, using a "framework first" learning approach. You will begin by learning what each tool is, its practical uses, and how to apply it and then you will try it out on your own for learning reinforcement. And, of course, there will be plenty of code samples using C# 10. Introducing .NET 6 is aimed at .NET developers, both junior developers and those coming from the .NET framework, who want to understand everything the modern framework has to offer, besides the obvious programming languages. While you will still see a lot of fabulous C# 10 throughout the book, the focus of this learning is all about .NET and its tooling. What You Will Learn Become a more versatile developer by knowing the variety of options available to you in the .NET 6 framework and its powerful tooling Know the different front-end frameworks .NET offers, such as UWP, WPF, and WinForms, and how they stack up to each other Understand the different communication protocols, such as REST and gRPC, for your back-end services Discover the secrets of cloud-native development, such as serverless computing with Azure Functions and deploying containers to Azure Container Services Master the command line, take your skill set to the cloud, and containerize your .NET 6 app Who This Book Is For Both students and more experienced developers, C# developers who want to learn more about the framework they use, developers who want to be more productive by diving deeper into the tooling that .NET 6 brings to the fold, developers who need to make technical decisions. A working knowledge of C# is recommended to follow the examples used in the book.

Go beyond the basics of D3.js to create maintainable, modular, and testable charts and to package them into a library that can be distributed as open source software or kept for private use. This book will show you how to transform regular D3.js chart code into reusable and extendable modules. You know the basics of working with D3.js, but it's time to become a professional D3.js practitioner. This book is your launching pad to refactoring code, composing complex visualizations from small components, working as a team with other developers, and integrating charts with a Continuous Integration system. You'll begin by creating a production-ready chart using D3.js v5, ES2015, and a test-driven approach and then move on to using and extending Britecharts, the reusable charting library based on Reusable API patterns. Finally, you'll see how to use D3.js along with React to document and build your charts to compose a charting library you can release into the NPM repository. With Pro D3.js, you'll become an accomplished D3.js developer in no time. What You Will Learn Create v5 D3.js charts with ES2016 and unit tests Develop modular, testable and extensible code with the Reusable API pattern Work with and extend Britecharts, a reusable charting library created at Eventbrite Use Webpack and npm to create and publish a charting library from your own chart collections Write reference documentation and build a documentation homepage for your library. Who This Book Is For Data scientists, data visualization engineers, and frontend developers with a fundamental knowledge of D3.js and some experience with JavaScript, as well as data journalists and consultants.

DESCRIPTION Serverless architecture is about having more time to focus on code, and moving quickly. In these new architectures, traditional back-end servers are replaced with cloud functions acting as discrete singlepurpose services. With serverless compute technologies like AWS Lambda, developers can build entirely serverless platforms at scale. Serverless Architectures on AWS teaches how to build, secure and manage serverless architectures that can power the most demanding web and mobile apps. This book has many ready-made and real-world examples, code snippets, diagrams, and descriptions of architectures that can be readily applied. It describes a traditional application and its back end concerns and then shows how to solve these same problems with a serverless approach. By the end, readers will be able to reason about serverless systems and be able to compose their own systems by applying these ideas and examples. KEY FEATURES * Up-to-date with the most current platform trends * Real-world examples, code snippets, and diagrams * Learn to solve back end concerns with a serverless approach AUDIENCE This book is for all software developers interested in back end technologies. Experience with JavaScript (node.js) and AWS is useful but not required. ABOUT THE TECHNOLOGY Lambda is a compute service that executes code written in JavaScript (node.js), Python, or Java on AWS infrastructure. Source code is deployed to an isolated container that has its own allocation of memory, disk space, and CPU. Serverless architectures herald a new way of building scalable, powerful, cost-effective, and high-performing back end systems. They encourage a new way of creating applications through the use of a stateless compute service to execute code.

PHP ist nach wie vor die wichtigste serverseitige Websprache und MySQL das wichtigste Webdatenbank-Managementsystem. Als Team sind die beiden unschlagbar, wenn es um die Erstellung dynamischer Webseiten geht. In diesem Buch erklArt Ihnen Janet Valade die Grundlagen und das Zusammenspiel von PHP und MySQL anhand typischer Anwendungsbeispiele.

Ultra-Fast ASP.NET 4.5 presents a practical approach to building fast and scalable web sites using ASP.NET and SQL Server. In addition to a wealth of tips, tricks and secrets, you'll find advice and code examples for all tiers of your application, including the client, caching, IIS 7.5, ASP.NET 4.5, threads, session state, SQL Server 2012 (otherwise known as Denali), Analysis Services, infrastructure and operations. By applying author Rick Kiessig's ultra-fast approach to your projects, you'll squeeze every last ounce of performance out of your code and infrastructuregiving your site unrivaled speed. Rather than drowning you in options, Ultra-Fast ASP.NET 4.5 presents and explains specific high-impact recommendations and demonstrates them with detailed examples. Using this knowledge, you will soon be building high-performance web sites that scale easily as your site grows. Apply the key principles that will help you build Ultra-Fast and Ultra-Scalable web sites. Identify performance traps (such as with session state) and learn how to avoid them. Put into practice an end-to-end systems-based approach to web site performance and scalability, which includes everything from the browser and the network to caching, back-end operations, hardware infrastructure, and your software development process. What you'll learn A way of thinking about performance issues that will help you obtain real results. How to apply key principles that will help you build ultra-fast and ultra-scalable web sites. How to use the ultra-fast approach to be fast in multiple dimensions. You'll have not only fast pages but also fast changes, fast fixes, fast deployments and more. Techniques that are being used by some of the world's largest web sites. How to structure your HTML and CSS to create pages that load ultra-fast. Tips for using Ajax and IIS 7.5 to improve the performance of your site. How to use comprehensive caching at all tiers to deliver content faster. Why you should avoid traditional session state and how to make the best use of cookies. Tips and tricks for optimizing your ASP.NET and SQL Server code for performance and scalability. How to use Analysis Services to offload your relational database. Why many sites that serve individual pages quickly are not scalable. How to avoid common pitfalls that can have an adverse impact on your site's performance, both now and as it grows. How to apply an end-to-end systems-based approach to web site performance and scalability, which includes everything from the browser and the network to caching, back-end operations, hardware infrastructure, and your software development process. Who this book is for

This book will be useful for intermediate to advanced developers and architects who want to improve the performance of their ASP.NET-based web sites. Some knowledge of ASP.NET, SQL Server, and IIS is assumed. Example code is provided in C#. Experienced web developers who have recently moved from Java or PHP to .NET will find lots of valuable and interesting information. This book will also be useful for non-developers who have a technical interest in what makes a web site fast. In particular, if you're involved with web site operations, testing, or management, you will discover many of the principals and issues that your development teams should be addressing, along with demonstrations that help drive the points home. Table of Contents Principles and Method Client Performance Caching IIS 7.5 ASP.NET 4.5 Threads and Sessions Using ASP.NET to Implement and Manage Optimization Techniques Managing ASP.NET Application Policies SQL Server Relational Database SQL Server Analysis Services Infrastructure and Operations Putting It All Together Glossary

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

Unsure of how or where to get started with Azure API Management, Microsoft's managed service for securing, maintaining, and monitoring APIs? Then this guide is for you. Azure API Management integrates services like Azure Kubernetes Services (AKS), Function Apps, Logic Apps, and many others with the cloud and provides users with a single, unified, and well-structured facade in the cloud. Mastering Azure API Management is designed to help API developers and cloud engineers learn all aspects of Azure API Management, including security and compliance. It provides a pathway for getting started and learning valuable management and administration skills. You will learn what tools you need to publish a unified API facade towards backend services, independent of where and what they run on. You will begin with an overview of web APIs. You will learn about today's challenges and how a unified API management approach can help you address them. From there you'll dive into the key concepts of Azure API Management and be given a practical view and approach of API development in the context of Azure API Management. You'll then review different ways of integrating Azure API Management into your enterprise architecture. From there, you will learn how to optimally maintain and administer Azure API Management to secure your APIs, and learn from them, gaining valuable insights through logging and monitoring. What You Will Learn Discover the benefits of an enterprise API platform Understand the basic concepts of API management in the Microsoft cloud Develop and publish your APIs in the context of Azure API Management Onboard users through the developer portal Help your team or other developers to publish their APIs more efficiently Integrate Azure API Management securely into your enterprise architecture Manage and maintain to secure your APIs and gain insights Who This Book Is For API developers, cloud engineers, and Microsoft Azure enthusiasts who want to deep dive into managing an API-centric enterprise architecture with Azure API Management. To get the most out of the book, the reader should have a good understanding of micro services and APIs. Basic coding skills, including some experience with PowerShell and Azure, are also beneficial.

"...lucid, in-depth descriptions of the behavior of every HTML tag on every major browser and platform, plus enough dry humor to make the book a pleasure to read." --Edward Mendelson, PC Magazine "When they say 'definitive' they're not kidding." --Linda Roeder, About.com Put everthing you need to know about HTML & XHTML at your fingertips. For nearly a decade, hundreds of thousands of web developers have turned to HTML & XHTML: The Definitive Guide to master standards-based web development. Truly a definitive guide, the book combines a unique balance of tutorial material with a comprehensive reference that even the most experienced web professionals keep close at hand. From basic syntax and semantics to guidelines aimed at helping you develop your own distinctive style, this classic is all you need to become fluent in the language of web design. The new sixth edition guides you through every element of HTML and XHTML in detail, explaining how each element works and how it interacts with other elements. You'll also find detailed discussions of CSS (Cascading Style Sheets), which is intricately related to web page development. The most all-inclusive, up-to-date book on these languages available, this edition covers HTML 4.01, XHTML 1.0, and CSS2, with a preview of the upcoming XHTML2 and CSS3. Other topics include the newer initiatives in XHTML (XForms, XFrames, and modularization) and the essentials of XML for advanced readers. You'll learn how to: * Use style sheets to control your document's appearance * Work with programmatically generated HTML * Create tables, both simple and complex * Use frames to coordinate sets of documents * Design and build interactive forms and dynamic documents * Insert images, sound files, video, Java applets, and JavaScript programs * Create documents that look good on a variety of browsers The authors apply a natural learning approach that uses straightforward language and plenty of examples. Throughout the book, they offer suggestions for style and composition to help you decide how to best use HTML and XHTML to accomplish a variety of tasks. You'll learn what works and what doesn't, and what makes sense to those who view your web pages and what might be confusing. Written for anyone who wants to learn the language of the Web--from casual users to the full-time design professionals--this is the single most important book on HTML and XHTML you can own. Bill Kennedy is chief technical officer of MobileRobots, Inc. When not hacking new HTML pages or writing about them, "Dr. Bill" (Ph.D. in biophysics from Loyola University of Chicago) is out promoting the company's line of mobile, autonomous robots that can be used for artificial intelligence, fuzzy logic research, and education. Chuck Musciano began his career as a compiler writer and crafter of tools at Harris Corporations' Advanced Technology Group and is now a manager of Unix Systems in Harris' Corporate Data Center.

This book describes a set of methods, architectures, and tools to extend the data pipeline at the disposal of developers when they need to publish and consume data from Knowledge Graphs (graph-structured knowledge bases that describe the entities and relations within a domain in a semantically meaningful way) using SPARQL, Web APIs, and JSON. To do so, it focuses on the paradigmatic cases of two middleware software packages, grlc and SPARQL Transformer, which automatically build and run SPARQL-based REST APIs and allow the specification of JSON schema results, respectively. The authors highlight the underlying principles behind these technologies-query management, declarative languages, new levels of indirection, abstraction layers, and separation of concerns-, explain their practical usage, and describe their penetration in research projects and industry. The book, therefore, serves a double purpose: to provide a sound and technical description of tools and methods at the disposal of publishers and developers to quickly deploy and consume Web Data APIs on top of Knowledge Graphs; and to propose an extensible and heterogeneous Knowledge Graph access infrastructure that accommodates a growing ecosystem of querying paradigms.

Learn how to use the MERN stack (MongoDB, Express.js, React, and Node) to build five fully functioning web apps for dating, video sharing, messaging, and social media. While creating these web apps, you'll learn key development concepts including how to use React hooks, Redux, MongoDB, Express, Heroku, Firebase, Material UI, and Google authentication. By expanding your portfolio with the projects you create, you will be well equipped as front-end developer. You will first create a dating site with a swiping feature and chat functionality. You will then build a video sharing app with videos displaying vertically. Next, you will learn to build an awesome messaging web app. Users will be able to chat in real time, as well as log in to their account using Google authentication. You will also create a photo sharing app and social media web apps with the ability to post images with captions and log in using email and password authentication. Most MERN tutorials out there today cover basic web apps but it is capable of so much more - learn how to use this stack to its full potential and build projects that can be converted into full scaled start-ups with additional features. What You'll Learn Work with React hooks and React router Examine powerful MongoDB services for easy to use and setup Create routes using Node and host on Heroku Study different authentication techniques Deploy all sites using simple Firebase hosting Use the powerful React ecosystem to add functionalities to your apps Who This book Is For Those who have just started their career in web development and have basic knowledge of the core web technologies: HTML, CSS, and JavaScript. Those with basic React development and feel ready to explore its capabilities further.

Apply design principles to your classes, preparing them for reuse. You will use package design principles to create packages that are just right in terms of cohesion and coupling, and are user- and maintainer-friendly at the same time. The first part of this book walks you through the five SOLID principles that will help you improve the design of your classes. The second part introduces you to the best practices of package design, and covers both package cohesion principles and package coupling principles. Cohesion principles show you which classes should be put together in a package, when to split packages, and if a combination of classes may be considered a "package" in the first place. Package coupling principles help you choose the right dependencies and prevent wrong directions in the dependency graph of your packages. What You'll Learn Apply the SOLID principles of class design Determine if classes belong in the same package Know whether it is safe for packages to depend on each other Who This Book Is For Software developers with a broad range of experience in the field, who are looking for ways to reuse,share, and distribute their code

Journey into the amazing world of WebAssembly (Wasm) and learn about how it can be applied on the cloud. This book is an introduction to Wasm aimed at professionals accustomed to working with cloud-related technologies such as Kubernetes and Istio service mesh. Author Shashank Jain begins with an introduction to Wasm and its related tooling such as wasm-bindgen and wapc. He then walks you through code examples using Rust, Golang, and JavaScript to demonstrate how they can be compiled to Wasm and consumed from Wasm runtimes deployed standalone, as well as on the cloud. You will see how a wasm module can be run through an http interface, and how Wasm fits into CNCF projects such as Kubernetes and Istio service mesh. After that, you'll learn how the polyglot nature of WebAssembly can be leveraged through examples written in languages like Rust and consumed via Golang and JavaScript, with a focus on how WebAssembly allows interoperability between them. You'll gain an understanding of how Wasm-based modules can be deployed inside Linux containers and orchestrated via Kubernetes, and how Wasm can be used within the Istio proxy to apply rules and filters. After reading this book, you'll have the knowledge necessary to apply WebAssembly to create multi tenanted workloads which can be polyglot in nature and can be deployed on cloud environments like Kubernetes. What You Will Learn Understand how Wasm can be used for server-side applications Learn about Wasm memory model and Wasm module layout How communication between host and Wasm module is facilitated The basics of Wasm sandboxing and security The fundamentals of tooling around Wasm, such as WAT and Wasm-pack Create a Wasm module in Rust and consume it from JavaScript, Rust and Golang. Grasp how Kubernetes can be used to orchestrate Wasm-based workloads How Wasm fits into service mesh Who Is This Book For Software developers/architects who are looking to hone their skills in virtualization and explore alternatives to Docker and container-based technologies for their workload deployments. Readers should have a basic programming background in languages such as Rust and Golang to get the most out of this book.

Develop a 2D game engine that will give you the experience and core understanding of foundational concepts for building complex and fun 2D games that can be played across the Internet via popular web browsers. This book is organized so that the chapters follow logical steps of building a game engine and integrates concepts accordingly. Build Your Own 2D Game Engine and Create Great Web Games isolates and presents relevant concepts from software engineering, computer graphics, mathematics, physics, game development and game design in the context of building a 2D game engine from scratch. In this edition, all the code is based on updated versions of JavaScript with HTML5 and WebGL2: you will analyze the source code needed to create a game engine that is suitable for implementing typical casual 2D videogames. You will also learn about physics and particle system. The discussion of physics component includes rotations and popular physical materials such as wood, mud, and ice. The discussion of particle component has popular presets such as fire, smoke, and dust. By the end of the book, you will understand the core concepts and implementation details of a typical 2D game engine, learn insights into how these concepts affect game design and game play, and have access to a versatile 2D game engine that they can expand upon or utilize to build their own 2D games from scratch with HTML5, JavaScript, and WebGL2. What You Will Learn Understand essential concepts for building 2D games Grasp the basic architecture of 2D game engines Understand illumination models in 2D games Learn basic physics used in 2D games Find out how these core concepts affect game design and game play Learn to design and develop 2D interactive games Who Is This Book For Game enthusiasts, hobbyists, and anyone with little to no experience who are interested in building interactive games but are unsure of how to begin. This can also serve as a textbook for a junior- or senior-level "Introduction to Game Engine" course in a Computer Science department.