Kalu Fortune 9 months ago

Getting Started With Blockchain — Beginner Guide

Blockchain is currently the holy grail of the tech world, it's like the new song in the mouth of geeks — from designers to developers to product managers, everyone is engulfed in it. Like every other tech field, Blockchain has its rudiments and significance, this article is simply a beginner(s) transition guide for anyone interested in and intending to go into Blockchain.

Getting Started with BlockChain — Beginner Guide

Blockchain is currently the holy grail of the tech world, it's like the new song in the mouth of geeks — from designers to developers to product managers, everyone is engulfed in it. Like every other tech field, Blockchain has its rudiments and significance, this article is simply a beginner(s) transition guide for anyone interested in and intending to go into Blockchain.

What is Blockchain?

Blockchain is a system of storing information rigidly, making it impossible and extremely difficult for the system to be violated, altered, changed, hacked or compromised. It's essentially a digital ledger of transactions, stored, duplicated and distributed across the entire network of computing systems engrafted into the Blockchain. A Blockchain comprises of a network of computers with a Blockchain client: software(s) that can access and process Blockchain transactions on a local computer. Example: Ethereum and Bitcoin Blockchain.

Low level programming languages like C, C++, Rust, Golang, etc are usually used to develop a Blockchain client. Understanding the operating systems, network and file structure is paramount in building a Blockchain client. It's tedious work but it's possible.

Most Blockchain developers mostly build Blockchain network Apps rather than develop Blockchain client(s). Blockchain developers that build client(s) are called Blockchain Core Developers. Those who build apps that run on a Blockchain are called Blockchain App Developers.

Almost always, when geeks identify as Blockchain developers they mean Blockchain App development. For example, on the Coin market cap there are about 9000 projects and a lot of projects don't have their own Blockchain, rather they build inside of an existing Blockchain. You can use the Dapp Radar to check the popularity and strengths of different projects.

Previously, Ethereum was the highest ranking Blockchain project, having been challenged by the Binance Smart Chain which happens to be more scalable and transaction friendly. Notwithstanding, Blockchain(s) like Tron and Binance Smart Chain as well as others depending on EVM — Ethereum Virtual Machine are all based on the Ethereum technology, so it's a good place to focus. I'll recommend Ethereum development.

To become skilled and a master in the field of Blockchain development the following must be properly understood.

Proof of Work (POW) algorithm

Data Structures

How a Wallet Works

Public & Private keys

How addresses are created.

Account types


Smart contracts

Web Development

Blockchain is built on the backdrop of web development. It's a necessary knowledge — walking before running. It doesn't necessitate expert knowledge because web development is broad, however you must be knee deep in Frontend and Backend. Blockchain App development focuses more on Frontend with languages like: HTML, CSS and Javascript. Most of the framework must be strong — REACT JS is recommended.

The above mentioned deals with Frontend web development for Blockchain App development. The main interest for Backend is Node JS, used to install dependencies and tools for Blockchain development. Get knee deep into it also.

Smart Contract Development

Another area of Blockchain development is the Smart Contract development. Smart Contracts are simply programs embedded in a Blockchain that run when the predetermined conditions are met. They automate the execution of agreements, bring immediate outcomes to all participants, without the involvement of intermediaries. This eliminates time loss.

Smart Chain contracts are the most important integers of the Blockchain App development, the differentiating feature between the Smart Contract and other programs is that once deployed it can't be changed. They are immutable and at extreme cases very expensive to change. Hence simplified codes are employed to lower execution cost — this is referred to as Gas Optimization.

Smart Contracts make the transfer of funds possible,hence the need to integrate services like PayPal, Pay stack, Etc. Smart Contracts are expedient, it's nearly impossible to hack a smart Contract. Hackers however could take advantage of introduced bugs.

In developing Blockchain many languages come to play, one of which is Solidity, it happens to be very popular. Its syntax resembles JavaScript but it's quite distinct. For projects, truffle IDE is used for Solidity. It comes with a local Ethereum called Ganache Blockchain.

In real life projects we use truffle IDE for SOLIDITY. It comes with a local Ethereum called Ganache Blockchain. Ganache can be used across the entire development circle; permitting development, deployment, DApps testing in a safe environment. With Ganache one can deploy Smart Contracts on real networks completely separate from the Ethereum network that is called Main-net. As many Ether-transactions could be sent for a test and infinite numbers of fake Ether are available for testing.

Public testers could also be used, these are networks commonly used by protocol developers or Smart Contract developers to test upgrades to protocol as well as potential Smart Contracts in a production-like environment before deployment to Main-net.

Another Service you would probably use is Infura — a Web3 backend and Infrastructure-as-a-Service (IaaS) provider that offers a range of services and tools for blockchain developers. This includes the Infura API (Application Programming Interface) suite. The flagship Infura Ethereum API is at the heart of the Infura Web3 service.

Frontend We Development

If you have smart contracts on a Blockchain the only way to communicate with it is through the command line, however this is very Terrible for users that's why we also need to build a frontend to let our users interact with a smart contract.

Smart Contract + Frontend = Decentralized Application (Dapp).

The challenge here now is integrating our frontend with the smart contract, we use a JavaScript contract called Web3.js.


web3js is a collection of libraries that allow you to interact with a local or remote Ethereum node using HTTP, IPC or Web-Socket.

View post likes

Create An Ad Like Th...

Give your skills and business more visibility with NairaPen Ads. We'll...

View details
Dr Abiodun Anifow...

More from Kalu Fortune

Curiosity Vs. Grades

The biggest failure with the educational system with the world at large is that it does aw...

Kalu Fortune
1 year ago

Syntax Error

Every night I find myself negotiating with mosquitoes; this night is no exception. And tho...

Kalu Fortune
1 year ago

Road Trip

It was the festive season once again. The season of feasting and spendthrift engagements....

Kalu Fortune
1 year ago

Natural Radioactivity And...

Development rides on the back of an in-depth understanding of how the universe works and a...

Kalu Fortune
1 year ago


I’ve been mistaken. I’m seated in a police Hilux on my way to the station. Police aren’t y...

Kalu Fortune
1 year ago

You may also like

The Palm Wine Tapper

The last speech of a man on trial in a court...I once knew a woman who was a palm wine tap...

Collins Uzuegbu
1 year ago

My Experience With Asuu S...

The description of my experience with ASUU strike and how it has affected my graduation ye...

Abdullahi Zakariy...
1 year ago

My Name Is Cain

The story of Cain in Genesis four is a story we should look into. Why would Cain kill his...

Damian King
2 years ago

I Saw Love; I Wasn't Crus...

Cassandra a teenage student with an abusive past,becomes a teacher's centre of attraction....

1 year ago

The Copycat System Of Nig...

This article describes the Nigerian government's setbacks in terms of mobile network devel...

Emmanuel Adindu
2 years ago
Comments (0)

There are currently no comments for this article. Be the first to comment.

Support this Writer
Secured Payment in Dollars