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
Solidity does not offer a convenient built-in method to concatenate or compare the strings like other high-level programming languages such as java, Python, C or javascript, etc. the string type has just recently been introduced to the solidity language and it may take a while to improve further. However, the string concatenation is still possible … Read more
NFTs have taken the world by storm attracting the masses outside the hardcore crypto enthusiasts. What is all the fuss about anyway? Can’t you just right-click and save the artwork anyways? Investors, celebrities, artists, and collectors are flocking to this new marketplace. Despite it’s name, you’ll find tons of fun in the non-fungible token space. … Read more
MetaMask is an Ethereum wallet allowing you to interact with the Ethereum blockchain in a simple way. Once installed, users can send and receive ETH and ERC-20 tokens. In addition to this, MetaMask serves as an entry point for DeFi, dApps, and NFTs. What is MetaMask? Install MetaMask Head to the Chrome Web Store or … Read more
How do you prove authenticity and ownership of your digital assets? NFTs (non-fungible tokens) make it possibly for anyone to do so. Whether it is an image, video, audio, or physical assets, you can build your collection all thanks to the blockchain. The popularity has seen an exponential growth with brands and celebrities jumping into … Read more
Any digital file can become an NFT (non-fungible token). As an NFT you are able to prove ownership and provenance via the blockchain. What if you are a creator and want to put your artwork up for sale? How do you mint an NFT? What does it even mean to mint an NFT? Minting an … Read more
New users are often intimidated upon entering the crypto space. Hurdles like user-friendliness, private keys, encryption, and wallets is enough to make a beginner’s head spin. With so many complexities to start off, it’s no wonder why mass adoption is slow to come. Design/UX Argent hopes to solve this issue by having an app that … 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
This tutorial is based on our Finxter Academy course: Feel free to check out the course with more advanced videos, codes, and explanations on Solidity. Here’s a short video that may give you some motivation on why learning Solidity in the first place—it’s a great way to build your second income stream as a freelance … 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