Latest Posts with development tag

development

53 Articles 0 Followers


Announcing BANANOjs 2.0.5 - JavaScript Utilities for BANANO (and now NANO!)

14 May 2020 3 minute read 10 comments banano

The cryptocurrency BANANO is always good for surprise news and tech innovation, and it’s often underestimated since many think it’s ‘just another meme coin’. Key to its growing success is next-generation tech paired with crypto education, easy and in...

Software, not hardware, is what computing is about

3 May 2020 6 minute read 0 comments lowededwookie

So I decided to give 1Password 7 a crack. I had felt no need to upgrade before then because it was doing what I wanted. But I kept reading that 1Password can handle 2FA codes. This intrigued me because currently I use Microsoft Authenticator. It work...

How to Use OpenZeppelin’s New AccessControl Contract

2 May 2020 9 minute read 3 comments alexroan

Version 3 of OpenZeppelin’s Smart Contracts library is out! In the latest release, they introduce a brand new method of controlling access to functions. What We Know Controlling access to certain functions is paramount to ensuring the security of sm...

How to Import External Smart Contracts and Libraries in Solidity

1 May 2020 4 minute read 0 comments alexroan

A step-by-step guide on how to import external code into your smart contracts Where to Start Getting started in the world of smart contract development can be overwhelming. There is often a lot of assumed knowledge that’s not particularly well explai...

How to Structure Your Code With React and Redux

28 Apr 2020 2 minute read 0 comments alexroan

Tech debt can quickly build up when building out an application from scratch. Frameworks like React and Redux provide great patterns to structure code in a modular fashion. And we live in a perfect world, so that’s all we’ll ever need! Except, of cou...

How To Secure Your Smart Contracts

26 Apr 2020 4 minute read 14 comments alexroan

This article explains how to secure your smart contracts against reentrancy and ownership theft attacks. Prerequisites: A basic understanding of the Ethereum Blockchain and Smart Contracts. Introduction Tunnel vision, a pitfall that every developer...

How to Test Ethereum Smart Contracts

26 Apr 2020 5 minute read 0 comments alexroan

This article walks through how to test Smart Contracts using Solidity and JavaScript. Prerequisites: A basic understanding of Blockchain, Ethereum and Javascript. The full working project code can be found on Github. The Importance of Software Testi...

Smart Contracts: Don't Reinvent The Wheel

26 Apr 2020 3 minute read 1 comment alexroan

Always use OpenZeppelin Don’t get me wrong, writing smart contracts from scratch is a great learning tool. Tasking yourself with creating an ERC20-compliant contract from start to finish is one of the best ways to gain an understanding of the logic...

15 Tips to Write Better Smart Contracts

25 Apr 2020 5 minute read 0 comments alexroan

1. Define the Purpose Before starting, make sure you have a clear understanding of what your smart contract is supposed to do. What value does it add? How should it be used? Consider the question of whether or not it even needs to be a blockchain app...

How to Make a Pokémon-Like Game With ERC-721 Tokens

25 Apr 2020 5 minute read 0 comments alexroan

ERC-721 tokens: What they are? How do they work? How can we use them? ERC-20 vs. ERC-721 At the height of the ICO bubble in 2017, ERC-20 tokens were everywhere. They were used as a form of crowdfunding by tech companies, with some claiming future use...