Mikio ObaThis article will look at deploying a smart contract to Polygon using Brownie. What is Polygon? Polygon is “a protocol and a framework for building and connecting Ethereum-compatible blockchain networks” (https://polygon.technology/). It started as Matic Network in 2017 to solve Ethereum’s scalability and user experience issues by using an off/side chain scaling solution. In 2021, … Read more
What is an ERC-1155 Token? An ERC-1155 token is a smart contract on Ethereum that implements the methods and events specified in the EIP-1155: Multi Token Standard. As the name suggests, it is designed to represent any number of fungible and non-fungible token types in a single smart contract. In the ERC-20 and ERC-721 standards, … Read more
What is an ERC-721 Token? An ERC-721 token is a smart contract on Ethereum that implements the methods and events specified in the EIP-721: Non-Fungible Token Standard. It is designed to be used as a non-fungible token (NFT), meaning the token’s instances (or units) are distinct from one another. The ERC-721 standard is based on … Read more
What is an ERC-20 token? An ERC-20 token is a smart contract on Ethereum that implements the methods and events specified in the ERC-20 standard. It is designed to be used as a fungible token, meaning each instance (or unit) of a token has the same value as another instance of the same token. It … Read more
In this article, we continue exploring the functionality of Brownie, a smart contract development and testing framework for Solidity and Vyper. We created a simple smart contract in the previous tutorials and deployed it to the Ropsten testnet. Please check the following articles if you haven’t done so. Brownie – Smart Contracts in Python How … Read more
In my previous article, we looked at how to set up Brownie, create a project with a simple smart contract, interact with it on a local blockchain and run a unit test. If you haven’t read it yet, please check the following link. Brownie – Smart Contracts in Python Now, we are ready to deploy … Read more
This is an introductory article to Brownie, a smart contract development and testing framework for Solidity and Vyper, especially with Python developers in mind. We first start with the installation process and then create a project with a simple smart contract. We will look at how to interact with the smart contract on a local … Read more
This article will give you a quick overview of a Python library, Web3.py. By the end of this article, we will install it on our local computer and understand how to use the basic functionality, such as sending Ether, deploying a Smart Contract, and interacting with it in Python. What is Web3.py? Web3.py is a … Read more
This article explains how to use the REST API to access FTX in Python so that you can build your trading program. As you go through the article, you can also watch our article tutorial video: What is FTX? FTX is an exchange where users can trade various digital assets, such as cryptocurrencies, tokenised stocks … Read more
This article explains the concept of gas in Ethereum and the basics you need to know when developing smart contracts in Solidity. What is Gas in Ethereum? In Ethereum, we have to pay for each computational operation, measured in the unit called gas. In the Ethereum documentation, gas is defined as follows: “Gas refers to … Read more
In Solidity, we can use the keyword payable to specify that an address or a function can receive Ether. This article shows you how it works and how we can use it. Ethereum Accounts and Transactions Each Ethereum account, either an external account (human) or a contract account, has a balance that shows how much … Read more
In Solidity, you can use the require, revert, and assert functions to check error conditions and handle exceptions, but they look similar at first glance, and you might get confused about how to use them. This article will explain their differences, specifically to Python developers. We use a simple smart contract below, taken from the … Read more