Ethereum and Solidity Developer: Build Web3 DApps with React and Next.js
Learn to write secure Solidity smart contracts and build modern decentralized applications using React, Next.js, and industry-standard blockchain tools.
💬AIインストラクター どのレッスンでも質問すれば、いつでもすぐに分かりやすい答えが返ってきます。
🕐いつでも開始 スケジュールも締め切りもなし。自分のペースで、好きなときに学べます。
🌐日本語で レッスン、課題、修了証まで、すべてあなたの言語で。
このコースについて
The transition from traditional web development to decentralized Web3 technology opens up powerful opportunities for creators and developers. Understanding how to connect secure smart contracts with modern, responsive frontends is the key to building successful decentralized applications (DApps). This text-based course takes you from blockchain novice to a developer capable of designing, deploying, and integrating Ethereum smart contracts.
Through clear explanations and structured code analysis, you will gain a deep understanding of blockchain mechanics, write Solidity code, and build web interfaces that interact directly with decentralized networks. You will learn to manage state, handle wallet connections, and deploy contracts to local and public testnets.
What you'll learn:
- Understand the foundational principles of Ethereum, gas dynamics, and how decentralized networks operate.
- Write secure, optimized smart contracts using Solidity, following modern development and security best practices.
- Compile, test, and deploy contracts using development environments like Hardhat and local blockchains.
- Build responsive DApp frontends with React and Next.js, utilizing modern routing and state management.
- Connect web applications to blockchain wallets and read/write smart contract data using modern Web3 libraries.
- Explore multi-chain ecosystems, including deployment concepts on Polygon and Solana.
The course begins with essential blockchain theory and fundamental Solidity concepts before guiding you through the process of building complete, functional DApps. You will read comprehensive explanations, analyze practical code snippets, and study real-world integration patterns.
This course is designed for web developers and programming enthusiasts who want to transition to Web3. No prior blockchain or smart contract experience is required, as we start with the absolute basics.
Start your journey into decentralized application development today.
This provided a good overview. The explanations were decent, but sometimes I wished for more practical application scenarios. Still, a valuable learning experience.
Sigurður Karlsson
IS
★ 5 · 07.06.2026
This is exactly what I was looking for. Loved the practical examples, they really helped solidify the concepts.