Blockchain Course: Learn by Building Your Own In JavaScript

4.7 ★★★★ ★

Blockchain Course: Learn by Building Your Own In JavaScript

Name: Blockchain Course: Learn by Building Your Own In JavaScript
Rating: 4.7 (357 reviews)
Author: Eric Traub

Code out your very own Blockchain and decentralized network in the JavaScript programming language

updated on icon Updated on Jun, 2025

language icon Language - English

person icon Eric Traub

English [CC]

category icon Development ,Web Development,JavaScript

Lectures -74

Resources -4

Duration -7.5 hours

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4.7 ★★★★ ★

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Course Description

In this course, you will be building your very own blockchain and decentralized blockchain network using the JavaScript programming language. By building your own blockchain, you will learn how blockchain technology works under the hood, how decentralized blockchain networks function, how the code behind these technologies works, and why blockchain is such a secure and valuable technology.

The blockchain that you build in this course will have all of the following features:

A proof of work algorithm to secure the network.
Hashing algorithms to secure the data within the blockchain.
The ability to mine (create) new blocks that contain data.
The ability to create transactions and store them in blocks.
An API/server that will be used to interact with the blockchain from the internet.
It will be hosted on a decentralized blockchain network.
A consensus algorithm to verify that the network nodes have valid data and are synchronized.
A broadcasting system to keep the data in the blockchain network synchronized.
Many other awesome features!...

When you have completed this course, you will have built out your own blockchain prototype in code. You will have a thorough understanding of how blockchain technology actually works and why this technology is so secure and valuable. You will also have a deep understanding of how decentralized blockchain networks function and why decentralization is such an important feature for securing the blockchain. The whole process of storing, securing, and validating data/transactions on the blockchain will become very clear.

Who this course is for?

Anyone who wants to build their own blockchain prototype in code.
Anyone who wants to learn how Blockchain Technology works under the hood.
Anyone who wants to understand how the "decentralization" of blockchain actually works.
Anyone who wants to gain a better understanding of why Blockchain Technology is valuable.
Anyone who wants to learn how the code behind Blockchain Technology works.

Goals

Have your own, fully functional, blockchain prototype.
Learn how the code behind blockchain technology functions.
Learn why blockchain technology is a very secure means of storing data.
Learn how a decentralized blockchain network works.

Prerequisites

Basic knowledge of JavaScript.
NodeJS installed.
The entire course is done on a Mac - if you have a Windows PC, you will be responsible for adapting the information to that operating system.

Blockchain Course: Learn by Building Your Own In JavaScript

Curriculum

Check out the detailed breakdown of what’s inside the course

Introduction

6 Lectures

Course Introduction 02:57 02:57
What You Will Learn In This Course 03:03 03:03
What Is A Blockchain? 05:26 05:26
Environment Setup 04:02 04:02
Project Source Code 01:10 01:10
Project Source Code Link Article

Building A Blockchain

18 Lectures

Accessing The Blockchain Through An API

8 Lectures

Creating A Decentralized Blockchain Network

13 Lectures

Synchronizing The Network

10 Lectures

Consensus

5 Lectures

Block Explorer

12 Lectures

Conclusion

1 Lectures

Instructor Details

Eric Traub

HI! I'm Eric. I currently work as a software engineer in New York City and I have extensive experience working as a teacher, instructing people in a variety of different subjects. I changed my career from teaching to software engineering because of the excitement it brings me and the passion that I have for it. I am lucky enough now to have the opportunity to combine both of these passions - software engineering and teaching!