Writing smart contracts with Solidity

Smart contracts, popularized by Ethereum, are programs executed on a blockchain that can replace or augment real-life contracts due to their transparent and immutable nature. These contracts, written primarily in the Solidity programming language, function similarly to JavaScript classes but with distinct characteristics like strong typing, inheritance, and mandatory semicolons after declarations. Solidity compiles source code into byte code and an Application Binary Interface (ABI), enabling interaction with other smart contracts or programming languages. To develop and test these contracts, tools like the Remix IDE are used, which facilitates compiling, deploying, and testing Solidity code on Ethereum networks. Additionally, smart contracts have specific function types governing visibility and state access, such as public, external, private, internal, view, pure, and payable, each serving different operational purposes. The article also highlights the importance of monitoring client-side issues in Web3 applications using tools like LogRocket, which provides session replays, error tracking, and performance analysis to improve user experience and product reliability.