Category: Blockchain

Blockchain Cryptocurrency Dev Tools Ethereum Web3

Web3.js vs. Ethers.js : Ethereum Dapp

When it comes to building decentralized applications (dApps) on the Ethereum blockchain, two JavaScript libraries dominate the scene: Web3.js and Ethers.js. Both offer powerful functionalities, but they cater to different development preferences. This blog post will delve into the key differences between these libraries to help you choose the right one for your project. Web3.js: […]

Blockchain Cryptocurrency Ethereum Smart Contracts Web3

Patterns for Upgradeable Smart Contracts

The very essence of blockchain technology, immutability, can be a double-edged sword for smart contracts. While it guarantees security and transparency, it also makes adapting to changes and fixing bugs a challenge. Thankfully, ingenious developers have introduced upgradeability patterns to navigate this dilemma. Why Upgrade Smart Contracts? Imagine deploying a smart contract that governs a […]

Blockchain Cryptocurrency Dev Tools Ethereum Smart Contracts Web3

Smart Contract Testing: Javascript vs Solidity

Smart contracts, the self-executing code on blockchains, require rigorous testing to ensure their security and functionality. Two primary approaches emerge: testing in Javascript and testing directly in Solidity. This blog post delves into the pros and cons of each method, along with popular frameworks like Hardhat and Foundry. Javascript Testing: Solidity Testing: Hardhat vs. Foundry: […]

Blockchain Cryptocurrency Dev Tools Ethereum Smart Contracts Web3

Fuzz Testing for Smart Contracts with Foundry

In the ever-evolving world of blockchain technology, securing smart contracts is paramount. These contracts, essentially self-executing programs, hold and manage valuable assets, making them prime targets for malicious attacks. Traditional testing methods often fall short in uncovering hidden vulnerabilities, leaving contracts exposed. This is where fuzz testing steps in, employing a powerful approach to fortify […]

Blockchain Cryptocurrency Dev Tools Smart Contracts Web3

Testing smart contracts with hardhat

Smart contracts, the self-executing programs on blockchains, play a crucial role in decentralized applications (dApps). However, their immutability amplifies the importance of thorough testing. Bugs in a deployed contract can be costly, leading to unexpected behavior and even potential loss of funds. This is where Hardhat comes into play, offering a robust and developer-friendly environment […]

Blockchain Cryptocurrency Web3

The Math behind Automated Market Makers

In the world of decentralized finance (DeFi), Automated Market Makers (AMMs) have emerged as a cornerstone, revolutionizing how users trade and provide liquidity on blockchain networks. These algorithms, often powered by smart contracts, facilitate decentralized exchanges (DEXs) by automating the process of liquidity provision and pricing assets. Behind their seemingly magical functionality lies a robust […]

Blockchain Cryptocurrency Security Smart Contracts Web3

Denial of Service Attacks in Smart Contracts

Today, let’s delve into the intriguing world of smart contracts and the vulnerabilities they face, specifically focusing on the menace of Denial of Service (DoS) attacks. Understanding Smart Contracts: Smart contracts, often built on blockchain platforms like Ethereum, enable trustless and decentralized execution of agreements. However, the distributed nature of these systems doesn’t make them […]

Blockchain Cryptography Ethereum Security Smart Contracts

Gas limit and out of gas vulnerability and mitigation

Today, let’s delve into the fascinating world of Ethereum smart contracts and explore the critical concepts of gas limits, the associated vulnerability of running out of gas, and effective strategies for mitigation. Gas in Ethereum: Gas is the computational unit that powers the Ethereum network. Every operation on the Ethereum Virtual Machine (EVM) consumes a […]

Blockchain Cryptocurrency Security Smart Contracts

Mitigate Front running attack in smart contracts?

Smart contracts, the cornerstone of decentralized applications (DApps), have revolutionized the way we transact on the blockchain. However, with innovation comes the risk of exploitation, and one such threat that has gained prominence is the front-running attack. In this blog post, we’ll explore what front running is, how it impacts smart contracts, and strategies to […]