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Blockchain is rapidly becoming one of the most important technological advancements of the past several decades. This “open, distributed ledger” makes anonymous, peer-to-peer transactions between users possible and is the foundation of the cryptocurrency revolution.
The global Blockchain market is currently worth an estimated $1.2 billion and experts predict that it will reach a $57 billion valuation by 2025, growing at more than 69% per year.
Solidity is one of the most popular programming languages used in blockchain development. It supports an object-oriented paradigm and is used to write smart contracts. Ethereum dApps can also be coded with Solidity. Solidity is designed to target the Ethereum Virtual Machine (EVM).
So, what makes Solidity so unique? First of all, it is used in one of the most popular blockchain solutions, i.e., Ethereum. Secondly, it can be used to smart contracts that open up a variety of use-cases, especially when it comes to crowdfunding, voting, and multi-signature wallets.
Blockchain is the way of the future. It is not farfetched to think that the future will be built around this emerging technology. Blockchain started off as a public, permissionless technology, and later, another type of blockchain was introduced, each for its own specific set of use cases. Public/permissionless blockchains are open, decentralized, and slow, whereas private/permissioned blockchains are closed and centralized, either partially or completely.
In this article, I am going to discuss what you need to learn in order to start building apps that use blockchain technology. When I first started learning blockchain, a lot of questions popped into my head. What are the different types of blockchains? Which programming languages should I use to program efficiently? And what are the platforms for blockchain development?
In this series, I'll be discussing the phases of a project encompassing a non-trivial set of Ethereum smart contracts and the React/Redux application that communicates with them. The project, called In-App Pro Shop, aims to help Ethereum developers easily support in-app purchases, and it was written over the last half of 2018 as a way of learning about the Ethereum development ecosystem. This project revealed many aspects of the power and constraints of Ethereum and its programming language Solidity. I hope to pass as much of that on to you as possible in this series.
I wanted to create a system wherein developers of Ethereum-based apps or games with in-app purchases could mint the items they sell as ERC-721 tokens (like CryptoKitties). It would handle most of the heavy lifting so that those developers could get on with the business of writing a kick-ass product.
Blockchain, though known to most people through cryptocurrencies like Bitcoin, is used for much more than powering cryptos. Recently, a lot of companies have been coming up with innovative ways of putting this technology to use, from using it as a decentralized voting system to managing a global shipping system.
Even big companies like IBM and Samsung have adopted it for use. So it's natural that all this interest in it brings about the need for blockchain developers. In fact, according to a report from Upwork, blockchain happens to be the fastest growing skill on its platform, surpassing skills like TensorFlow and machine learning in the top 20 list. This means there are a lot of jobs for blockchain developers.