Project Scenario In this 2-part series, I’ll show you how I built my own ERC-20 token like ETH in this project. I share this because you may want to do the same and learn from my experience. 👉 Recommended: How I Built My Own ERC-20 Token (2/2) I use Solidity to write a smart contract … Read more
Ethereum’s Total Value Locked (TVL) is $28,000,000,000 USD and Ethereum’s market cap is $193,000,000,000 USD. Based on my estimations below, there are at most 269,000 monthly active Solidity developers. Therefore, the Ethereum TVL per Solidity developer is more than $104,000, and the Ethereum market cap per Solidity developer is more than $717,000. So for all … Read more
We completed a transaction in the last part, but the transaction data had yet to be seen. In this part, we will drive the smart contract data to the user interface. The user’s data and the transaction time will be displayed on the user interface. This is part 4 of our four-tutorial series on creating … Read more
This is part 3 of our four-tutorial series on creating a decentralized web app to sell ebooks: 👇 We will connect the front end with the smart contract in this part of the series. The interaction with the smart contract will be done using ether.js. Move to the app.js file inside the source folder. We … Read more
This is part 2 of our four-tutorial series on creating a decentralized web app to sell ebooks: 👇 In the previous part, we built the smart contract and deployed it on the hardhat node for testing. Now it’s time to deploy the contract on the testnet. But before that, let’s install the react app first. … Read more
Welcome to another project of a decentralized dapp with React and ether.js. This is part 1 of our four-tutorial series on creating a decentralized web app to sell ebooks: 👇 Project Scenario We will build an ebook stall from which anyone can buy an ebook on a monthly subscription basis. The buyer will submit his … Read more
One of the presiding JavaScript libraries for interacting with the Ethereum blockchain is ether.js. The ether.js library, only 88 KB compressed in size, is remarkably smaller than the web3.js library. Because of that, web apps load more quickly if you use the ether.js API. This constantly improving library has already been popular among developers for … Read more
In this article, we’ll continue on the topic of the assignments, which we started in the previous article while talking about tuples. This article’s topic will focus on possible challenges when dealing with arrays and structs and the right approaches to resolve them. It’s part of our long-standing tradition to make this (and other) articles … Read more
In this article, we’ll start familiarizing ourselves with the order of evaluating expressions in Solidity. Plus, you’ll learn about multiple assignments (tuple assignments). Let’s go! 💪 It’s part of our long-standing tradition to make this (and other) articles a faithful companion or a supplement to the official Solidity documentation. Order of Evaluation of Expressions Some … Read more
Salted contract creation uses cryptographic “salt” to add an additional layer of security to a smart contract. Salt is a random string added to the contract code to make it harder for an attacker to reverse engineer the code and gain access to the contract. This makes the contract more secure and helps protect the … Read more
In this article, we’ll take a closer look at how contracts are created, both directly, i.e. while being implicitly deployed on the blockchain, and indirectly, i.e. when their creation is triggered by another contract. It’s part of our long-standing tradition to make this (and other) articles a faithful companion, or a supplement to the official … Read more
Welcome to the second part of the series. In the first part, we have seen how web3.js helped the react frontend to connect to the smart contract. 👉 Recommended Tutorial: Learn to Build Smart Contracts in React with web3.js: Here’s How! (1/2) We explored the power of the “web3.eth” attribute to call the data from … Read more