Search Results for "solidity"

Solang is a modern Solidity compiler written in Rust that enables developers to compile smart contracts for multiple blockchain platforms beyond Ethereum, such as Solana, Polkadot, and Soroban. Unlike the traditional Solidity compiler, which targets the Ethereum Virtual Machine, Solang focuses on portability by translating Solidity code into native execution environments for different blockchains.

MEV Ethereum Trading Bot is an Ethereum arbitrage project that combines a Solidity smart contract with external Python automation. The contract is designed to search for and execute swaps between approved Uniswap pools and routers in a single transaction. Owners can whitelist tokens and routers, configure fees and swap limits, pause execution, revoke approvals, and withdraw assets. The automation layer performs dry-run gas estimates before sending eligible transactions.

This repository accompanies a step-by-step tutorial for building a Web3 decentralized application that connects a React front end to Ethereum smart contracts written in Solidity. It walks you through setting up MetaMask, configuring a local or test blockchain, and wiring contract methods to a clean, modern UI. The project emphasizes end-to-end learning: from authoring and compiling a smart contract, to deploying it, and then interacting with it via web3 libraries in React. It demonstrates core patterns like sending transactions, reading on-chain state, and providing user feedback for pending and confirmed operations. ...

A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it...

Polygon Ethereum Next.js Marketplace is a full-stack NFT marketplace reference project built for Ethereum-compatible networks. It combines Next.js for the frontend with Solidity smart contracts for marketplace logic. Users can mint digital assets, list them for sale, browse available NFTs, and purchase listed items. IPFS is used to store decentralized asset metadata and associated content. Hardhat provides the local blockchain environment, contract deployment, and development workflow. The project can run locally or through Gitpod and can be configured for Polygon networks using an RPC provider and wallet credentials.

...Typical learning themes include Solidity contracts, Web3 integration, testing, deployment, and front-end interaction with blockchain data. It is especially useful for developers who want an introductory, project-based route into Ethereum application development.