What is Etherum? Ethereum is an open source, globally decentralized computing infrastructure that executes programs calledsmart contracts. It uses a blockchain to synchronize and store the systemsstatechanges, along with a cryptocurrency calledetherto meter and constrain execution resource costs. The Ethereum platform enables developers to build powerful decentralized applications with built-in economic functions. While providing high availability, auditability, transparency and neutrality, it also reduces or eliminates censorship, and reduces certain counterparty risks. What is a smart contract? The termsmart contracthas been used over the years to describe a wide variety of different things. In the 1990s, cryptographer Nick Szabo coined the term and defined it as a set of promises, specified in digital form, including protocols within which the parties perform on the other promises. Since then, the concept of smart contracts has evolved, especially after the introduction of decentralized blockchain platforms with the invention of Bitcoin in 2009. In the context of Ethereum, the term is actually a bit of a misnomer, given that Ethereum smart contracts are neither smart nor legal contracts, but the term has stuck. In this book, we use the term smart contract to refer to immutable computer programs that run deterministically in the context of an Ethereum Virtual Machine as part of the Ethereum network protocol, i.e. on the decentralized Ethereum world computer. What is a DApp?A Decentralized Application, orDApp, is an application which is mostly or entirely decentralized. Consider all the possible aspects of an application that may be decentralized: Front-end softwareBack-end software (logic)Data storageName resolutionMessage communicationsTools will be used in this courseIn this course you will learn all tools which use for develop decentralize application: truffle frame work, ganache, metamask, visual studio code, geth, infura, ipfs, javascript, jquery. This course is design to practically guide you real life skill on development of Ethereum Dapp. Following topics are covered. Understand the big picture of decentralize applicationInstall development tool: nodejs, truffle framework, ganache, metamask, visual studio code, and pluginsStart project with truffle unboxSolidiy smart contract codingInteract with smart contract use truffle consoleDevelop automation test for smart contractLayout htmlJavascript code to communicate with smart contract and update webuiDeploy smart contract to rinkeby test network use geth nodeDeploy smart contract to ropsten test network use hdwallet and infuraDeploy webui to distributed file system with ipfsMake the app fully decentralizedBlockchain and Ethereum dapp right now are very hot technical trend. Developer with good skill of blockchain and Dapp very easy to get jobs with 6 figures. Are you interesting joining the huge innovation of Dapp? Joint my course and I will show you.
