Web3
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Creating Landing Pages Using Web3 Backends
In this tutorial we will be demonstrating how web3 technology can be used to store data on-chain rather than in a database when building a landing page. James On YouTube Watch On YouTube: https://youtu.be/3iPqLtjL_9k | Subscribe We will be using a simple Soroban smart contract to store a counter which increases each time a transaction…
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Building A Stellar Web Wallet With Blend
In this tutorial I’m going to show you how I built a web based wallet that can create Stellar addresses and deposit any funds to Blend Capital. James On YouTube Watch On YouTube: https://youtu.be/GbAy9f93eyE | Subscribe Blend is an overcollateralized lending protocol that enables lenders to earn yield on their deposits. The source code for…
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Automating Web3 Interactions In Rust | Minting Ethereum NFT’s With Ethers-rs
In this tutorial we are going to be deploying a simple NFT contract to Ethereum and then minting new NFT’s using a bot built with Rust and ethers-rs Let’s start by heading to Remix and deploying this contract to Ethereum’s Sepolia testnet. It has already been deployed here if you want to skip this step:…
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Marketing Psychology in Web3
This article delves into the key aspects of marketing psychology that are unique or particularly relevant to the Web3 ecosystem, exploring how trust, community engagement, scarcity, fear of missing out, attention economy, and behavioural economics intersect with this innovative space. Trust and Credibility The blockchain sector has been plagued by numerous fraud & scams, making…
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Encrypting Private Keys in .env
It has become very normalised to store Ethereum private keys in plain text within .env files. While this is convenient, it’s a disaster waiting to happen when working in production with wallets that contain real funds. Today, I’ll show you a better way to manage your hot wallet keys using AES encryption. Full code for…
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Building Rust Smart Contracts On Stellar Soroban
Soroban is the smart contract platform that allows developers to write and deploy smart contracts on the Stellar network. This tutorial will guide you through the process of building a simple smart contract using Rust and deploying it to Soroban. I recently took on the role of Developer in Residence with Stellar and this is…
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The Future Of Bitcoin, Ethereum & Web3
In this article I’m going to discuss where I think the industry is going over the next decade and how emerging developments will affect the following: Bitcoin Bitcoin, the pioneer and household name of crypto, has not evolved significantly from its origins as a digital currency. It is becoming increasingly recognized as a mainstream financial…
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AI Is Not Decentralized
Can AI solve centralization issues for blockchain projects? There’s more hype than ever around “AI on the blockchain” and while this still isn’t a thing I’d like to look at one particular use case in this article. Can machine learning be used to address centralization issues, is it enough to trust a model where true…
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Web3 Social Network
Today I’m going to explore what a web3 social network could look like and try to figure out what we want from social networks and where they might be going in the future. Let’s first look at some existing social networks and what makes them popular The thing that all these products have is targeted…
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How To Check Token Balances Using Python
To check a wallet token balance on the Ethereum blockchain using Python you will need the following: Once we have our API key ready and Python installed we can install web3.py using the following command Now let’s create a file called balance.py and add the following code. Note the code is also available in the…
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Web3 vs Cloud Computing
Have you ever wondered if decentralised data storage can truly rival the convenience and efficiency of traditional cloud services like AWS? Web3 devs today face several significant challenges. On-chain data is currently slow, expensive, and often comes with a poor user experience. However, with the rapid advancements in technology, the future could look very different.…
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How To Lookup An ENS Name In Python
To check a wallet token balance on the Ethereum blockchain using Python you will need the following: Once we have our API key ready and Python installed we can install web3.py using the following command Now let’s create a file called enslookup.py and add the following code. Enter your Infura API key on line 5.…
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Building a Career in Web3
Web3 represents the future of the internet, where developers can deploy permissionless code on a decentralized network. Building a career in this space requires a combination of technical skills, practical experience, and a strategic approach. This article outlines the key steps for anyone looking to forge a career in Web3, from learning Solidity to launching…
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Using Vyper With Remix
You can now use Vyper (a smart contract programming language similar to python) with remix to build and deploy contracts on Ethereum and other EVM blockchains. The first step is installing the Vyper plugin at https://remix.ethereum.org/ where you’ll find a list of plugins using the icon in the bottom left. You’ll then get an extra…
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Etherspot Account Abstraction Tutorial
I find it surprising and rare when using new technology and it just works and is intuitive. Getting up to speed with Etherspot and account abstraction is one of those rare occasions. In this tutorial I’ll show you how I created a little demo to create a smart wallet, fund it and then send batched…
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Ethers-rs Tutorial | The Rust Web3 Library
In this tutorial we will be setting up a Rust script to connect to a smart contract on a blockchain network to display on-chain data using the ethers-rs library. James On YouTube Watch On YouTube: https://youtu.be/FA7WFGtyri8 |Subscribe Let’s start by setting up a new Rust project (you’ll need rust installed on your device and I’ll…
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WAGMI Tutorial | The Web3 React Framework
WAGMI is a set of Typescript React hooks for web3 which enables developers to connect to smart contracts on blockchain networks. In this tutorial we will look at how to install and setup a boilerplate in WAGMI and then build a simple read query. WAGMI in 3 Mins [Video] James On YouTube Watch On YouTube:…
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Emergent use cases for self-sovereign identity in DeFi
Abstract The DeFi sector is facing increased regulatory pressure to de-anonymize certain transactions and user profiles, while simultaneously dealing with flagging user confidence in terms of their individual rights to data privacy. This is providing fertile ground for innovative companies to try to allow end users to be the sovereign of their own identity and…
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NEAR BOS | Blockchain Operating System
Near BOS is a complete framework designed for creating, testing, deploying and distributing decentralized application frontends. Developers can create Javascript based dApps with the frontend code stored and distributed from a blockchain. It is blockchain agnostic so you can store data on Near and EVM chains. BOS is a collection of components, blockchains & gateways.…
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Web3 PWA Boilerplate | How To Create Next Generation dApps
One of Web3’s biggest issues is getting around the centralization of app stores and their stringent terms on the commission requirements for digital asset payments and transfers. Progressive Web Apps (PWAs) in my opinion are the best solution as it allows you to install dApps directly on to a mobile device without using the app…
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The Secrets Web3 Marketers Use To Launch New Crypto Projects
My previous background in digital marketing and now having worked in the blockchain sector for 6 years provides unique vantage point on the differences between conventional and web3 marketing. Successful crypto projects create communities of advocates who act as micro-influencers championing the cause. In this article I’ll discuss why “build it and they will come”…
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3 Ways To Raise Web3 Funding
In this article I’ll explore 3 ways in which you can raise funds for your project with web3 products. Membership NFT A NFT is a non-fungible token, they are often represented as a unique image which can contain additional rights such as: To execute a NFT drop, the following steps can be taken: If any…
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Uniswap Market Maker Bot | Managing Token Liquidity On Uniswap
In this tutorial I am going to go through how I built a market maker bot to manage liquidity on Uniswap v3 for a token pair. The idea is to create a automated trading bot which buys tokens when price falls below a base line value and sells tokens when price is above the base…
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Ethers vs VIEM | Which Web3 Frontend Library?
Ether.js took over from Web3.js as the number one library for connecting up our dApps to smart contracts running on EVM blockchains. Recently Ethers v6 was released and VIEM is disrupting the space by offering a lightweight Ethereum client library from the authors of WAGMI react hooks. I have always been a big fan of…
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Web3 Investment Thesis
This Web3 investment thesis covers the potential disruption from decentralized permissionless computing. As blockchains scale it’s going to be possible to use smart contracts to enable users to store their own data creating the opportunity for a new era of decentralized applications. Web3 Disrupting Data Web3 disrupts the way we store data online by using…
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Sign In With Ethereum Tutorial
To sign in with Ethereum using Metamask we will be using the ERC4361 specification that allows Ethereum accounts to authenticate with off-chain services using a standard message format. This technology offer users a self-custodial alternative to centralized identity providers that generally use email:password credentials. In Web3 applications we can improve user experiences and establish a…
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Timeframe & Budgets For Web3 Development
In this article I’m going to provide a timeframe, gantt chart and budget costs for web3 development projects. This assumes a medium sized project for something like a new, innovative DeFi protocol consisting of 5-10 interconnected smart contracts and around 1000 lines of code plus an external audit and dApp frontend. If you are just…
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Complete Introduction To Web3 Tutorial | Fullstack Web3 Development Tutorial
This video course provides a complete introduction to Web3 development. The Web3 tutorial starts with a simple Hello World smart contract and React frontend before diving in to create something useful on Ethereum mainnet. Introduction To Web3 Development James On YouTube Watch On YouTube: https://youtu.be/RwuG9HluFQY |Subscribe Hello World Smart Contract James On YouTube Watch On…
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Solidity for Beginners
Solidity is the programming language used to develop smart contracts on Ethereum and other compatible blockchains. In this “Solidity for Beginners” tutorial I will take you from setting up solidity tools to deploying your first contract. James On YouTube Watch On YouTube: https://youtu.be/yM6oRMdMiTM |Subscribe Tools & Setup We will be starting in Remix which is…
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EthGlobal Hackathon | Winning $4300 And Advice For Future Participants
EthGlobal hackathons are the largest and most prestigious in the blockchain developer space. The February 2022 “Road To Web3” event was focused on the migration from web2 social networks to web3 technologies. Over the weekend around 400 teams built projects using sponsors technology including Polygon, Uniswap, Moralis and Web3Auth. This video talks about the experience…
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The Truth About dApps & Web3
This article is derived from a chapter in the free eBook explaining DeFi technologies:DeFi Demystified | An Introduction To Decentralized Finance If smart contracts form the back end brains of a DeFi platform then dApps or decentralized applications form the front-end that we interact with as users. In theory dApps can be compiled from source…
