https://jeiwan.net/tags/smart-contracts/ Recent content in smart contracts on Going the distance Hugo -- gohugo.io en Tue, 22 Jun 2021 00:00:00 +0000 https://jeiwan.net/posts/programming-defi-uniswap-3/ Tue, 22 Jun 2021 00:00:00 +0000 https://jeiwan.net/posts/programming-defi-uniswap-3/ Photo by carlos aranda on Unsplash Introduction Here we are again building a clone of Uniswap V1! Our implementation is almost ready: we’ve implemented all core mechanics of Exchange contract, including pricing functions, swapping, LP-tokens, and fees. It looks like our clone is complete, however there’s a missing piece: Factory contract. Today, we’ll implement it and our Uniswap V1 clone will be done. However, this is not the end: in the next part we’ll be building Uniswap V2 and it’ll be not less interesting than V1! https://jeiwan.net/posts/flashloan-scam/ Wed, 09 Jun 2021 18:42:51 +0700 https://jeiwan.net/posts/flashloan-scam/ Introduction I once came across a video on YouTube which was named “How I earned BNB using Flashloans to Arbitrage on Binance Smartchain BSC”. The title was quite catchy because everyone who followed the crypto field in the beginning of 2021 was aware of Binance Smart Chain (BSC), which is a clone of Ethereum, and definitely heard about multiple attacks on DeFi projects running on this blockchain. Following the success of DeFi on Ethereum, Binance created a copy of the blockchain and, allegedly, funded multiple projects that copied most successful and advanced DeFi-projects of Ethereum.