Learn Blockchain By Building Your Own In JavaScript
What you’ll learn
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.
Requirements
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.
Description
In this course you will be building your very own blockchain and decentralized blockchain network by 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 work, 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 algorithms 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.
Overview
Section 1: Introduction
Lecture 1 Course Introduction
Lecture 2 What You Will Learn In This Course
Lecture 3 What Is A Blockchain?
Lecture 4 Environment Setup
Lecture 5 Project Source Code
Lecture 6 Project Source Code Link Article
Section 2: Building A Blockchain
Lecture 7 Blockchain Introduction
Lecture 8 Constructor Function Explanation
Lecture 9 Prototype Object Explanation
Lecture 10 Blockchain Constructor Function
Lecture 11 Create New Block Method
Lecture 12 Testing Create New Block Method
Lecture 13 Get Last Block Method
Lecture 14 Create New Transaction Method
Lecture 15 Testing Create New Transaction Method
Lecture 16 SHA256 Hashing
Lecture 17 Hash Block Method
Lecture 18 Testing Hash Block Method
Lecture 19 What Is A Proof Of Work?
Lecture 20 Proof Of Work Method
Lecture 21 Testing Proof Of Work Method
Lecture 22 Creating A Genesis Block
Lecture 23 Section 1 Wrap-Up
Lecture 24 Blockchain Source Code
Section 3: Accessing The Blockchain Through An API
Lecture 25 Building An API – Introduction
Lecture 26 Setting Up ExpressJS
Lecture 27 Building The API Foundation
Lecture 28 Installing Postman & Body-Parser
Lecture 29 Building The “GET /blockchain” Endpoint
Lecture 30 Building The “POST /transaction” Endpoint
Lecture 31 Building The “GET /mine” Endpoint
Lecture 32 Testing The New Endpoints
Section 4: Creating A Decentralized Blockchain Network
Lecture 33 Decentralized Blockchain Network – Introduction
Lecture 34 Creating Multiple Nodes
Lecture 35 Testing The Nodes
Lecture 36 Adding The Current Node’s Url
Lecture 37 New Endpoints Outline
Lecture 38 Building “POST /register-and-broadcast-node” Endpoint – Part 1
Lecture 39 Building “POST /register-and-broadcast-node” Endpoint – Part 2
Lecture 40 Building “POST /register-node” Endpoint
Lecture 41 UPDATE: Installing the “request” library
Lecture 42 Testing “POST /register-node” Endpoint
Lecture 43 Building “POST /register-nodes-bulk” Endpoint
Lecture 44 Testing “POST /register-nodes-bulk” Endpoint
Lecture 45 Testing All Network Endpoints
Section 5: Synchronizing The Network
Lecture 46 Synchronizing The Network – Introduction
Lecture 47 Transactions Introduction
Lecture 48 Refactoring Create Transaction Method
Lecture 49 Building “POST /transaction/broadcast” Endpoint
Lecture 50 Refactoring “POST /transaction” Endpoint
Lecture 51 Testing Transaction Endpoints
Lecture 52 Updating Mining Information
Lecture 53 Updating Mining Endpoint
Lecture 54 Building “POST /receive-new-block” Endpoint
Lecture 55 Testing New Endpoints
Section 6: Consensus
Lecture 56 Consensus Introduction
Lecture 57 Chain Is Valid Method
Lecture 58 Testing Chain Is Valid Method
Lecture 59 Building “GET /consensus” Endpoint
Lecture 60 Testing “GET /consensus” Endpoint
Section 7: Block Explorer
Lecture 61 Block Explorer Introduction
Lecture 62 Block Explorer Endpoints Outline
Lecture 63 Get Block Method
Lecture 64 Building “GET /block/:blockHash” Endpoint
Lecture 65 Get Transaction Method
Lecture 66 Building “GET /transaction/:transactionId” Endpoint
Lecture 67 Get Address Data Method
Lecture 68 Building “GET /address/:address” Endpoint
Lecture 69 Adding The Block Explorer File
Lecture 70 Block Explorer File Source Code
Lecture 71 Block Explorer File Explanation
Lecture 72 Testing The Block Explorer!
Section 8: Conclusion
Lecture 73 Course Recap
Lecture 74 Next Steps
Lecture 75 Congrats !!!
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.
Course Information:
Udemy | English | 7h 55m | 2.92 GB
Created by: Eric Traub
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