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Free Download Udemy - DApp Developer Course Build DApp on Ethereum Blockchain Published: 4/2025 Created by: eTech School MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch Level: All | Genre: eLearning | Language: English | Duration: 243 Lectures ( 20h 0m ) | Size: 7.91 GB Master Ethereum blockchain development with hands-on experience in smart contracts, DApps, security, and Solidity! What you'll learn Blockchain fundamentals and Ethereum architecture Hands-on smart contract development using Solidity Truffle, Hardhat, Ganache, MetaMask, and Web3.js toolchains DApp development, design, and deployment Advanced Solidity patterns, token contracts (ERC20), and proxy design Smart contract security best practices and threat modeling Testing, auditing, and deployment on Ethereum testnets and mainnet Working with Ether.js and integrating frontend with blockchain Requirements Basic knowledge of JavaScript or programming concepts A PC or Mac with internet access Familiarity with command line and VS Code is a plus Curiosity and a desire to build Web3 projects! Description Course IntroductionEthereum is at the heart of the blockchain revolution-and this course is your gateway to mastering it. Whether you're a developer exploring decentralized technologies or an aspiring Web3 architect, this all-in-one Ethereum development course will give you the foundational and advanced skills to build, test, and secure real-world blockchain applications. You'll start with the basics of blockchain and Ethereum, then move into smart contract development with Solidity, DApp creation, advanced smart contract patterns, and Ethereum security best practices.Section 1: Foundations of Ethereum & Smart Contract DevelopmentThis section lays the groundwork for your blockchain journey. You'll begin with the history, structure, and purpose of blockchain technology, followed by an in-depth look at Ethereum's architecture, including gas, nodes, Merkle trees, and clients. The course then transitions into the world of smart contracts-what they are, why they matter, and how to build them using Solidity. You'll learn Solidity syntax, types, memory management, and deploy your first smart contract using tools like Remix, Truffle, Ganache, and MetaMask. The section concludes with practical Web3.js projects, smart contract testing, and hands-on contract interaction.Section 2: Building Real-World DAppsHere, you transition from smart contract development to full-fledged decentralized application (DApp) development. You'll explore the DApp ecosystem, study successful case studies, and tackle common challenges. With tools like Hardhat and Ether.js, you'll build, test, and deploy DApps on testnets and the Ethereum mainnet. The section also covers user interface design for DApps, integration with smart contracts, managing state and transactions, payment systems using cryptocurrency, and creating wallet contracts. By the end, you'll have created a complete, user-friendly decentralized application.Section 3: Advanced Smart Contract Patterns & Ethereum ArchitectureNow that you've mastered the basics, it's time to go pro. This section dives into advanced Solidity topics like inheritance, libraries, modifiers, and security-focused design patterns like the factory, singleton, and state machine patterns. You'll implement robust smart contract architectures, understand proxy and upgradeability patterns, and develop ERC20 token contracts. You'll also explore concepts like gas optimization, payment channels, authentication mechanisms, and permissioned access control. This is where you build scalable, modular, and production-ready contracts.Section 4: Ethereum Security and Smart Contract AuditingSecurity is critical in the blockchain space, and this section ensures you're equipped with the tools and knowledge to protect your applications. You'll explore common vulnerabilities, real-world breach case studies, and best practices for secure coding. Learn to use tools like MythX, Slither, and Remix's security analyzer to audit smart contracts. You'll conduct penetration testing, unit testing, code reviews, and implement secure financial systems. By the end, you'll not only know how to build secure applications but also how to monitor, upgrade, and audit them effectively.Course ConclusionThis course transforms you from a beginner into a confident Ethereum developer, capable of building secure and scalable decentralized applications. From writing smart contracts to designing full-stack DApps and auditing code, you'll gain in-demand skills that position you at the forefront of Web3 development. You'll graduate with multiple real-world projects, a solid portfolio, and the technical fluency to contribute to the future of decentralized technology. 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Free Download Udemy - Mastering Web3 & Ethereum DApp Development Using Web3.js Published: 4/2025 Created by: eTech School MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch Level: All | Genre: eLearning | Language: English | Duration: 48 Lectures ( 3h 22m ) | Size: 1.61 GB Build real-world decentralized apps (DApps) from scratch using Ethereum, smart contracts, and Web3.js What you'll learn Core concepts of Web3, blockchain, and Ethereum How to set up a Web3 development environment Connecting to the Ethereum blockchain with Ether.js How smart contracts work and how to interact with them Using Web3.js to build blockchain-enabled front-end applications Creating and managing Ethereum wallets and transactions Working with ERC-20 tokens and verifying contracts on Etherscan Building real-world DApps with live blockchain event tracking Requirements Basic knowledge of JavaScript and HTML/CSS Familiarity with web development (React/Vue not mandatory, but helpful) No prior blockchain or Ethereum experience required Node.js and npm should be installed on your system Description Course Introduction:Web3 is revolutionizing the future of the internet, and Ethereum stands at its core. This course is your hands-on guide to building decentralized applications (DApps) using Web3.js, Ethereum, and smart contracts. Whether you're a web developer curious about blockchain, or a crypto enthusiast ready to create real utility, this course takes you step-by-step from setting up your development environment to launching fully interactive front-ends for your DApps.With practical demos, real blockchain interactions, and smart contract development, you'll gain the confidence and skills to become a Web3 developer capable of launching modern decentralized apps.Section 1: Web3 & Ethereum Foundations - Getting Started with the Decentralized WebThis section introduces you to the core technologies behind the decentralized web. You'll learn what Web3 is, how blockchain works, and why Ethereum is so central to the ecosystem. Through a hands-on setup process, you'll prepare your environment for building Web3 apps. By the end, you'll understand the "why" behind Web3 and be ready to dive into development.Section 2: Ethereum Basics - Accounts, Transactions & Smart ContractsHere, we dive into Ethereum's core concepts like accounts, addresses, and smart contracts. Using Ether.js, you'll learn how to connect to the blockchain, retrieve account and transaction data, and interact with deployed smart contracts. This section forms the practical foundation for everything you'll build later on.Section 3: Smart Contract Interactions - Bringing DApps to Life with Web3.jsNow it's time to start developing real DApp interactions. You'll use Web3.js to create wallets, send transactions, manage token contracts (like ERC-20), and verify contracts on Etherscan. You'll also learn how to integrate smart contracts into web apps-turning backend blockchain logic into real user functionality.Section 4: Building Web3 Frontends - From UI to Blockchain IntegrationIn this final module, you'll combine everything you've learned to build full-stack Web3 applications. You'll build interactive frontends that connect to Ethereum wallets, show balances, and respond to blockchain events in real time (like whale transactions). With this knowledge, you'll be fully equipped to launch your own DApps with real-time data and blockchain interactivity.Course Conclusion:You've now journeyed through the world of Ethereum, smart contracts, and Web3.js-from setting up your environment to deploying interactive blockchain-enabled applications. Whether you're launching your first DApp or contributing to an existing project, you're equipped with the technical know-how and the real-world skills to succeed in the Web3 space. 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