A walk on the bleeding edge of technology — A blockchain oracle is a third-party/decentralized data service that provides off-chain data for smart contracts and blockchains. It bridges the gap between the closed, deterministic system of a blockchain and the real world. …

In the previous lessons, we started to dip our toes deeper and deeper into Solidity, looking at topics such as visibility and functions. In… — In the previous lessons, we started to dip our toes deeper and deeper into Solidity, looking at topics such as visibility and functions. In this lesson, we will continue quickly covering control structures. With regards to control structures, Solidity is very similar to other languages, such as Javascript. We have…

In the previous lessons, we’ve already got familiar with some basic concepts in Solidity programming, such as functions and reference… — In the previous lessons, we’ve already got familiar with some basic concepts in Solidity programming, such as functions and reference types. In this one, we are going to look at how visibility works in Solidity. First of all, it’s important to make one thing crystal clear right from the start…

In the previous introductory lessons, we started to dip our toes into the world of Solidity and reviewed a few basic concepts like… — In the previous introductory lessons, we started to dip our toes into the world of Solidity and reviewed a few basic concepts like reference and value types. Now we will further progress on our journey, and take a look at solidity functions and function modifiers. Functions in Solidity take some…

Introduction to reference types — Introduction to reference types In the last lesson, we looked at value types in Solidity. If you haven’t read that yet, go ahead and do it here. Now we will continue with reference types. Let’s begin by defining what a reference type is. In contrast to a value type, which…

Introduction to value types — Introduction to value types In Solidity, like in many other languages, data types can be broadly classified into two groups: reference types and value types. In this article, we will examine the various value types that are present in the language. Let’s begin by defining what a value type is…

In the previous lesson, we looked at how to set up your local Solidity development environment. Here we will continue on that path by… — In the previous lesson, we looked at how to set up your local Solidity development environment. Here we will continue on that path by writing our first smart contract! The contract we will write in this short article is the Greeter contract from the Hardhat basic sample project setup. If…

Get started with smart contract development — Get started with smart contract development Welcome to the first article in my series on smart contract development with Solidity. All articles will be published in this publication so make sure to follow us if you are interested. The publication will start from elementary concepts and progress all the way…

Automated execution comes to the smart contract world — I attended the Smart Contract Summit #1 last month (which was the greatest event of the year for me so far!) where there was a lot of discussion about Chainlink Keepers, a new solution provided by Chainlink. According to their website, “Chainlink Keepers enables smart contracts to automate key functions…