Ethereum smart contract creation code This article explains what happens at the bytecode level when an Ethereum smart contract is constructed and how the constructor arguments are interpreted. Table...

Creating Raw Ethereum Interactions in Go: Blob Transactions, Tracing Transactions, and Others. The ethclient package from Go-Ethereum (Geth) provides an API wrapper for JSON-RPC requests to the...

Solidity Events Solidity events are the closest thing to a or statement in Ethereum. We will explain how they work, best practices for events, and go into a lot of technical details often omitted in...

The Fallback Extension Pattern The fallback-extension pattern is a simple way to circumvent the 24 KB smart contract size limit. Suppose we have functions and in our primary contract and wish to add...

Foundry Unit Tests This article will describe how to create unit tests in Solidity using Foundry. We will cover how to test all the state transitions that can occur in a smart contract, plus some...

Storage Slots in Solidity: Storage Allocation and Low-level assembly storage operations This article examines the storage architecture of the Ethereum Smart Contracts. It explains how variables are...

Understanding the Function Selector in Solidity The function selector is a 4-byte id that Solidity uses to identify functions under the hood. The function selector is how a Solidity contract knows...

The RareSkills Book of Solidity Gas Optimization: 80+ Tips !solidity gas optimization TABLE OF CONTENTS The RareSkills Book of Gas Optimization Gas optimization tricks do not always work Beware of...

Generate a random number with Solidity on the blockchain !Random Number Solidity Random Number Randomness is tricky on the blockchain because the blockchain is deterministic, but randomness requires...

Governance Contract in Solidity The pattern of governance many DeFi applications follows is heavily inspired by Compound Finance’s implementation. Although, there isn’t an Ethereum Improvement...