Master key features of Go, including advanced concepts like concurrency and working with JSON, to create and optimize real-world services, network servers, and clients Key FeaturesThis third edition of the bestselling guide to advanced Go programming has been overhauled and expanded to cover RESTful servers, the WebSocket protocol, and Go genericsUse real-world exercises to build high-performance network servers and powerful command line utilitiesPacked with practical examples and utilities to apply to your own development work and administrative tasksGet clear explanations about Go nuances and features to simplify Go developmentBook Description Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you'll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You'll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you'll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects. What you will learnUse Go in productionWrite reliable, high-performance concurrent codeManipulate data structures including slices, arrays, maps, and pointersDevelop reusable packages with reflection and interfacesBecome familiar with generics for effective Go programmingCreate concurrent RESTful servers, and build gRPC clients and serversDefine Go structures for working with JSON dataWho this book is for You'll need to know the basics of Go before you get started with this book, but beyond that, anyone can sink their teeth into it. It's written primarily for Go programmers who have a bit of experience with the language and want to become expert practitioners.

Publisher's Note: This edition from 2019 is outdated and is not compatible with the latest version of Go. A new third edition, updated for 2021 and featuring the latest in Go programming, has now been published. Key Features • Second edition of the bestselling guide to advanced Go programming, expanded to cover machine learning, more Go packages and a range of modern development techniques • Completes the Go developer’s education with real-world guides to building high-performance production systems • Packed with practical examples and patterns to apply to your own development work • Clearly explains Go nuances and features to remove the frustration from Go development Book Description Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques. What you will learn • Clear guidance on using Go for production systems • Detailed explanations of how Go internals work, the design choices behind the language, and how to optimize your Go code • A full guide to all Go data types, composite types, and data structures • Master packages, reflection, and interfaces for effective Go programming • Build high-performance systems networking code, including server and client-side applications • Interface with other systems using WebAssembly, JSON, and gRPC • Write reliable, high-performance concurrent code • Build machine learning systems in Go, from simple statistical regression to complex neural networks Who this book is for Mastering Go, Second Edition is for Go programmers who already know the language basics, and want to become expert Go practitioners. Table of Contents • Go and the Operating System • Understanding Go Internals • Working with Basic Go Data Types • The Uses of Composite Types • How to Enhance Go Code with Data Structures • What You Might Not Know About Go Packages and functions • Reflection and Interfaces for All Seasons • Telling a Unix System What to Do • Concurrency in Go: Goroutines, Channels, and Pipelines • Concurrency in Go: Advanced Topics • Code Testing, Optimization, and Profiling • The Foundations of Network Programming in Go • Network Programming: Building Your Own Servers and Clients • Machine Learning in Go Review "Mastering Go - Second Edition is a must-read for developers wanting to expand their knowledge of the language or wanting to pick it up from scratch" -- Alex Ellis - Founder of OpenFaaS Ltd, CNCF Ambassador

Concurrency can be notoriously difficult to get right, but fortunately, the Go open source programming language makes working with concurrency tractable and even easy. If you’re a developer familiar with Go, this practical book demonstrates best practices and patterns to help you incorporate concurrency into your systems. Author Katherine Cox-Buday takes you step-by-step through the process. You’ll understand how Go chooses to model concurrency, what issues arise from this model, and how you can compose primitives within this model to solve problems. Learn the skills and tooling you need to confidently write and implement concurrent systems of any size. Understand how Go addresses fundamental problems that make concurrency difficult to do correctly Learn the key differences between concurrency and parallelism Dig into the syntax of Go’s memory synchronization primitives Form patterns with these primitives to write maintainable concurrent code Compose patterns into a series of practices that enable you to write large, distributed systems that scale Learn the sophistication behind goroutines and how Go’s runtime stitches everything together

Discover smart and entertaining strategies for dealing with difficult emotions like anxiety, sadness, anger, and uncertainty. More than just “adulting”—this book will give you the real emotional skills you need to thrive! Whether you’re graduating from college, starting a career, trying to gain financial independence, or creating meaningful relationships—entering into the world of grownups can be more than a little overwhelming. And while there are plenty of fun books out there for young adults offering advice on how to fix a leaky faucet or find the right apartment, none really delve into the deeply emotional aspects of growing up. In Mastering Adulthood, psychologist Lara Fielding offers evidence-based skills to help you cope with the feelings of anxiety, depression, anger, and stress that may be getting in the way of living an independent, fulfilling adult life. Drawing on case examples from young adults she’s worked with in her private practice, Fielding provides empowering strategies and skills for managing difficult emotions using mindfulness, dialectical behavior therapy (DBT), and acceptance and commitment therapy (ACT). When you experience big life changes that cause you stress, you need emotional flexibility to reach your goals and be your best self. Using the skills in this book, you’ll learn to take charge of your emotional habits, stop feeling stuck, and discover what really matters to you.

Master the Shiny web framework—and take your R skills to a whole new level. By letting you move beyond static reports, Shiny helps you create fully interactive web apps for data analyses. Users will be able to jump between datasets, explore different subsets or facets of the data, run models with parameter values of their choosing, customize visualizations, and much more. Hadley Wickham from RStudio shows data scientists, data analysts, statisticians, and scientific researchers with no knowledge of HTML, CSS, or JavaScript how to create rich web apps from R. This in-depth guide provides a learning path that you can follow with confidence, as you go from a Shiny beginner to an expert developer who can write large, complex apps that are maintainable and performant. Get started: Discover how the major pieces of a Shiny app fit together Put Shiny in action: Explore Shiny functionality with a focus on code samples, example apps, and useful techniques Master reactivity: Go deep into the theory and practice of reactive programming and examine reactive graph components Apply best practices: Examine useful techniques for making your Shiny apps work well in production

Master the skills to create your very own manga! Expert manga artist Mark Crilley guides you to another level with this powered-up drawing book. Complete your Crilley collection with this third installation, which elevates the instruction to focus on drawing methods to help you create distinctive and detailed professional-level manga art. Through 40 in-depth step-by-step demonstrations not covered in other Mastering Manga books, Mark reveals his secrets for adding color, how to draw manga-style animals, ways to use photo reference, his preferred art supplies and how to fix character inconsistencies. The book is broken down into three sections: • Characters and Styles. Learn how to draw characters in every manga style--elegant Shojo, angular Dark Fantasy, action-packed Shonen and cute cartoon. Includes non-human characters like animal familiars (realistic or chibi) and aliens. Break-out lessons focus on anatomy, hairstyles and all genres of clothing, from classic anime uniforms to fantasy costuming. • Poses and Action. Make your characters bold, memorable and full of vitality. Get the most out of your poses by learning how to create natural, standing and dynamic running poses, plus sword fights, romantic Shojo interactions and stances for animals, manga monsters, chibi cuties and mech a robots. Advanced lessons include how to convey a sense of motion, tips on body language and how to effectively using foreshortening. • Finishing Touches. Elevate your art with Mark's professional instruction on completing your comic. These final lessons include page layouts, logo design, how to place a character in a setting, correctly using dialogue and speech bubbles, advanced costume design (fantasy armor, wings, and more) and how to create attention-grabbing cover art. "Manga is all about fresh concepts and fascinating characters. You've got ideas. You've invented new characters. There's a whole world waiting to see what you've come up with!" --Mark Crilley

From New York Times bestselling author and former Navy SEAL Brandon Webb comes a simple yet powerful five-step guide to transforming your life by making your fears work for you instead of against you. Brandon Webb has run life-threatening missions in the world's worst trouble spots, whether that meant jumping out of airplanes, taking down hostile ships on the open sea, or rolling prisoners in the dead of night in the mountains of Afghanistan. As a Navy SEAL, he learned how to manage the natural impulse to panic in the face of terrifying situations. As media CEO and national television commentator, he has learned how to apply those same skills in civilian life. Drawing on his experiences in combat and business, along with colorful anecdotes from his vast network of super-achiever friends from astronauts to billionaires, Webb shows how people from all walks of life can stretch and transcend their boundaries and learn to use their fears as fuel to achieve more than they ever thought possible. "Fear can be a set of manacles, holding you prisoner," writes Webb. "Or it can be a slingshot, catapulting you on to greatness." The key, says Webb, is not to fight fear or try to beat it back, but to embrace and harness it. In the process, rather than being your adversary, your fear becomes a secret weapon that allows you to triumph in even the most adverse situations. In Mastering Fear, Webb and his bestselling coauthor John David Mann break this transformation down into five practical steps, creating a must-read manual for anyone looking for greater courage and mastery in their lives.

Delivers absolutely everything you will ever need to know to become a master Django programmer About This Book Gain a complete understanding of Django—the most popular, Python-based web framework in the world Gain the skills to successfully designing, developing, and deploying your app This book is packaged with fully described code so you can learn the fundamentals and the advanced topics to get a complete understanding of all of Django's core functions Who This Book Is For This book assumes you have a basic understanding of the Internet and programming. Experience with Python or Django would be an advantage, but is not necessary. It is ideal for beginner to intermediate programmers looking for a fast, secure, scalable, and maintainable alternative web development platform to those based on PHP, Java, and dotNET. What You Will Learn Use Django to access user-submitted form data, validate it, and work with it Get to know advanced URLconf tips and tricks Extend Django's template system with custom code Define models and use the database API to create, retrieve, update, and delete records Fully extend and customize the default implementation as per your project's needs Test and deploy your Django application Get to know more about Django's session, cache Framework, and middleware In Detail Mastering Django: Core is a completely revised and updated version of the original Django Book, written by Adrian Holovaty and Jacob Kaplan-Moss - the creators of Django. The main goal of this book is to make you a Django expert. By reading this book, you'll learn the skills needed to develop powerful websites quickly, with code that is clean and easy to maintain. This book is also a programmer's manual that provides complete coverage of the current Long Term Support (LTS) version of Django. For developers creating applications for commercial and business critical deployments, Mastering Django: Core provides a complete, up-to-date resource for Django 1.8LTS with a stable code-base, security fixes and support out to 2018. Style and approach This comprehensive step-by-step practical guide offers a thorough understanding of all the web development concepts related to Django. In addition to explaining the features of Django, this book provides real-world experience on how these features fit together to build extraordinary apps.

"Mastering Monero - The future of private transactions" is the newest resource to help you learn everything that you want to know about the cryptocurrency Monero. The book, available in electronic and physical form, provides the knowledge you need to participate in this exciting grassroots, open-source, decentralized, community-driven privacy project. Whether you are a novice or highly experienced, this book will teach you how to start using and contributing to Monero. The resource introduces readers to the cryptocurrency world and then explains how Monero works, what technologies it uses, and how you can get started in this fantastic world! For technical people, there are some chapters that provide in-depth understanding of the Monero ecosystem. The Monero cryptocurrency is designed to address and avoid practical troubles that arise from using coins that do not protect your sensitive financial information. Cryptocurrencies have revolutionized the financial landscape by allowing anybody with an internet connection to instantly access secure, robust, censorship-free systems for receiving, storing, and sending funds. This paradigm shift was enabled by blockchain technology, by which thousands of participants store matching copies of a “public ledger”. While this brilliant approach overcomes many economic hurdles, it also gives rise to a few severe downsides. Marketing corporations, snooping governments, and curious family members can analyze the public ledger to monitor your savings or study your activities. Monero mitigates these issues with a suite of advanced privacy technologies that allow you to have the best of all worlds! Instead of a public ledger, Monero has a shared private ledger that allows you to reap the benefits of a blockchain-based cryptocurrency, while protecting your sensitive business from prying eyes. This book contains everything you need to know to start using Monero in your business or day-to-day life. What are you waiting for? Get your copy of Mastering Monero now!

The instant New York Times bestseller. A groundbreaking method to master all types of diabetes by reversing insulin resistance. Current medical wisdom advises that anyone suffering from diabetes or prediabetes should eat a low-carbohydrate, high-fat diet. But in this revolutionary book, Cyrus Khambatta, PhD, and Robby Barbaro, MPH, rely on a century of research to show that advice is misguided. While it may improve short-term blood glucose control, such a diet also increases the long-term risk for chronic diseases like cancer, high blood pressure, high cholesterol, chronic kidney disease, and fatty liver disease. The revolutionary solution is to eat a low-fat plant-based whole-food diet, the most powerful way to reverse insulin resistance in all types of diabetes: type 1, type 1.5, type 2, prediabetes, and gestational diabetes. As the creators of the extraordinary and effective Mastering Diabetes Method, Khambatta and Barbaro lay out a step-by-step plan proven to reverse insulin resistance-the root cause of blood glucose variability- while improving overall health and maximizing life expectancy. Armed with more than 800 scientific references and drawing on more than 36 years of personal experience living with type 1 diabetes themselves, the authors show how to eat large quantities of carbohydrate-rich whole foods like bananas, potatoes, and quinoa while decreasing blood glucose, oral medication, and insulin requirements. They also provide life-changing advice on intermittent fasting and daily exercise and offer tips on eating in tricky situations, such as restaurant meals and family dinners. Perhaps best of all: On the Mastering Diabetes Method, you will never go hungry. With more than 30 delicious, filling, and nutrient-dense recipes and backed by cutting-edge nutritional science, Mastering Diabetes will help you maximize your insulin sensitivity, attain your ideal body weight, improve your digestive health, gain energy, live an active life, and feel the best you've felt in years.