Chris Dannen

Learn how to take your existing knowledge of Ethereum and Solidity to the next level. Hone your development skills and become more familiar with the syntax of the Solidity language by working through well-tested, well-documented intermediate-level sample projects. You will begin by covering the basics of Ethereum, Solidity, and gaming theory. From there, you will move onto sample projects that use smart contract engineering to create fun casino-style games that you can deploy and test on your friends and colleagues with real ether. All games are provably fair and auditable, so that players know the house won’t always win! Ideal for any reader with exposure to Ethereum, the techniques this book teaches are applicable to game developers, software engineers, web developers, and cryptocurrency enthusiasts. What You'll LearnUse various features and best practices for smart contract programming in Ethereum and SolidityDevelop and deploygames of chance, similar to the kind you’d find in a casinoCreate fun, easy projects with Ethereumlntegrate the Ethereum blockchain into gamesWho This Book Is ForEntry-level programmers with some exposure to Ethereum; game developers, Blockchain and cryptocurrency enthusiasts looking to add Ethereum and Solidity development to their skill set; software engineers and Web developers

Learn how to use Solidity and the Ethereum project – second only to Bitcoin in market capitalization. Blockchain protocols are taking the world by storm, and the Ethereum project, with its Turing-complete scripting language Solidity, has rapidly become a front-runner. This book presents the blockchain phenomenon in context; then situates Ethereum in a world pioneered by Bitcoin. See why professionals and non-professionals alike are honing their skills in smart contract patterns and distributed application development. You'll review the fundamentals of programming and networking, alongside its introduction to the new discipline of crypto-economics. You'll then deploy smart contracts of your own, and learn how they can serve as a back-end for JavaScript and HTML applications on the Web. Many Solidity tutorials out there today have the same flaw: they are written for “advanced” JavaScript developers who want to transfer their skills to a blockchain environment. Introducing Ethereum and Solidity is accessible to technology professionals and enthusiasts of all levels. You’ll find exciting sample code that can move forward real world assets in both the academic and the corporate arenas. Find out now why this book is a powerful gateway for creative technologists of all types, from concept to deployment. What You’ll LearnSee how Ethereum (and other cryptocurrencies) workCompare distributed apps (dapps) to web appsWrite Ethereum smart contracts in Solidity Connect Ethereum smart contracts to your HTML/CSS/JavaScript web applicationsDeploy your own dapp, coin, and blockchainWork with basic and intermediate smart contractsWho This Book Is For Anyone who is curious about Ethereum or has some familiarity with computer science Product managers, CTOs, and experienced JavaScript programmers Experts will find the advanced sample projects in this book rewarding because of the power of Solidity

Beginning iOS Apps with Facebook and Twitter APIs shows you how to add the power of social networking to your mobile apps on iPhone, iPad, and iPod touch. With this book as your guide, you can write apps that connect to Facebook and Twitter quickly, securely, and discreetly. Instead of starting from scratch, you will build on the vast resources, data storage capacity, and familiar features of these platforms which have become part of everyday life for hundreds of millions of users worldwide. Beginning iOS Apps with Facebook and Twitter APIs introduces you to the development tools, techniques, and design practices you will need to work with the APIs. It helps you decide whether to use Facebook, Twitter, or both, and explains the important issues of design, branding, and permissible use guidelines. You will learn how to guarantee privacy and use OAuth for authentication and single sign-on. Create news apps, shopping apps, contact apps, GPS apps, guides, and more, that let users transparently: Sign on once, then freely work with and manage their Facebook and Twitter accounts Publish game high scores, post likes, links, and status updates Send messages, share pictures, and forward Tweets Tweet a link to an event, show themselves as attending, and see who else is there Show Tweets that are relevant to a topic within a news app Show Tweets about a restaurant Organize a group or community From time to time, new forms of communication come along that make it easier for people to communicate and manage their social lives. Like phone calls and SMS before them, Facebook and Twitter have, in a short time, become essential parts of the social fabric of life for an ever-growing number of people throughout the world. The knowledge you'll gain from Beginning iOS Apps with Facebook and Twitter APIs will help you create exciting and popular iOSapps that your users will rely on every day to help make their lives more meaningful and connected.

This book profiles developers who have received the prestigious Apple Design Award for iPhone app excellence. You'll learn all about what makes these apps truly standout, including explanations of great user interface design and implementation, as well as the code under the hood that makes these the most responsive, intuitive, useful, and just plain fun apps running on the iPhone. Insightful profiles of the developers behind Tweetie, Topple 2, AccuTerra, Postage, and Wooden Labyrinth 3D Detailed explanations of the technical wizardry that makes these apps tick Full-color screenshots and copious downloadable code snippets to get you started building the next iPhone Design Award–winning apps