Mastering Hyperledger Chaincode Development using GoLang from Udemy

What's inside

Learning objectives

Chaincode development using golang
Application development using fabric node sdk
Use of private data
Use of instantiation & endorsement policies

Building support for rich queries & asset history
Building programmatic access control with "client identity library"
Testing tools for chaincode such as golang testing framework & mockstub

Chaincode development using golang
Application development using fabric node sdk
Use of private data
Use of instantiation & endorsement policies
Building support for rich queries & asset history
Building programmatic access control with "client identity library"
Testing tools for chaincode such as golang testing framework & mockstub

Syllabus

Introduction

Tips to get the most value out of this course
Course Layout

Link to the project repository

Lectures in this section will provide an overview of the Fabric 2.x updates

+ Fabric 2.x Updates

Overview of the course updates.

+ Returning students - Fast track to updating knowledge to Fabric 2.0

Students will have a VM setup on which Fabric Dev tools will be installed in next section

Minimum requirements for the Dev machine
Visual Studio Code Setup

Overview of Virtualization
Introduction to VirtualBox & Vagrant

Setup of the repo (git clone)
Walk through of the samples repository

+ Provides an overview of the development workflow

+ Discussion on the options for installation

Students who use the "VirtualBox" hypervisor may use this option to carry out this installation which is very fast and does not require manual installation of the tools.

Development environment overview
Development workflow
Installation of the Fabric Runtime

Installation of the dev tools in VM

Go Tools
Hyperledger Explorer
Node JS + Dev Utilities

Setup the development environment and try it out

Discussion on relationship between:

Distributed Ledger Technology
Transactions
Chaincode

Fabric Chaincode Concepts

How the scripts are used?
Environment scripts
Chain dev scripts
Chaincode utility
Explorer

Project repository has multiple utility scripts for managing the dev environment. Students will learn to use the dev management scripts

Students to try out the scripts and utilities.

Learn how to use the peer chaincode commands against the dev environment

Launching the explorer
Using the explorer interface

Students will learn how to use a utility script for executing peer commands

Students will learn the Fabric 2.x Chaincode Lifecycle

+ Chaincode Lifecycle Overview

+ Lifecycle stage 1 : Package and Install

Hands on with package and install commands

Lifecycle stage for approval & commit of the Chaincode

+ Approveformyorg

+ Commit

Hands on with the commands:

+ approveformyorg

+ install

Execution of the Init, Query & Invoke on a chaincode

Hands on with querying and invocation of the chaincode

Overview of how chaincode is upgraded:

+ Locally

+ Across the network

Hands on exercise for upgrading the chaincode

Overview of peer net versus dev mode

Go Chaincode Interface

Chaincode instance registration
Functions in the interface

Chaincode logging functions
Controlling the log levels

Wlakthrough of the cc-logs.sh script

Students will learn about the required functions in the chaincode. After that students will test the chaincode using the dev environment and the utility scripts.

Sending the Success & Error response from Chaincode funtions

Checks students understanding

Go Chaincode Stub

Provides an overview of ChaincodeStubInterface
Types of functions available on the interface

Goes over the functions available for getting transaction proposal information

GetSignedProposal
GetTxID
GetTxTimestamp
GetChannelId
GetTransient

Hands On Exercise:

Part 1 : Use the utility functions for getting info from proposal

Part 2 : Explore the SignedProposal

Solution walk through

How client send arguments to chaincode functions
Implementation of the invoke/init functions

Functions for accessing the arguments

getArgs
getStringArgs
getFunctionAndParameters

Checks students knowledge of transaction proposal and arguments

How data is managed in the Fabric Runtime

Learn about the state management functions:

GetState()
PutState()
DelState()

In this exercise students need to use the state management function to delete an asset

Checks students knowledge of State Data Management

Rules for invoking another chain code

Learn the use of InvokeChaincode function

InvokeChaincode

Students will learn about events:

Types
Flow of events
Chaincode event subscription

Demonstrates the use of the SetEvent function on the Stub.

Tests knowledge of the events

Writing Unit Test Cases for Network Applications

General discussion on testing practices

Unit tests
Integration tests

Unit testing framework for GoLang

Shows how to use the GoLang Testing Framework

Fabric GoLang Unit Testing using the MockStub interface

Demonstrates the use of the MockStub Interface for unit testing the chaincode

Using Bash scripts and Utility scripts for automating testing

Demonstrates how to write testing scripts

Shows the use of various functions that the student has learned in the past section

Introduction to tokens & ERC20 standard

Discusses the project requirements in details

Walk through of the solution design | code

Testing the transfer events

Learn the flow of transactions & use of Endorsement policies

There are 3 phases in the flow:

Transaction proposal
Broadcast
Commit

Transaction flow in Fabric

What are trust authorities? Their role in the Fabric network?

Understand the Endorsing Policies
Defining the EP Expression

Endorsement Policies

Students will learn how the Dev environment is setup for the Lifecycle Endorsement Policy

Experience the Endorsement Policies

Make changes to the sample to gain better understanding of the Endorsement Policies

Teaches the use of functions for managing Private Data

Data confidentiality
Options for achieving it on Fabric

Private Data Collections

Private Data Collection

How endorsement process works when there is Private data in the proposal

Transaction flow for PDC

Defining the Collection in JSON

PDC Definition change in Fabric 2.0

Putting together the PDC JSON file

Experience the setup of PDC with chaincode

Practice exercise + walkthrough

GetPrivateData()
PuPrivateData()
DelPrivateData()

Walk through of the code - using the Stub API for private data

Extend the sample code to better understand the private data collections

Chaincode can query state data in multiple ways. This section shows how Range query API are used.

Indexing on key
Key range specifications

GetStateByRange()
GetPrivateDataByRange()

Learn the use of GetStateByRange() functions

Range Queries

Why pagination is needed
How pagination is supported

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops GoLang chaincode and other crucial skills for Fabric development

Covers most of the Fabric 2.0 Lifecycle stages and technicalities

Provides a hands-on approach with practical exercises and examples

Taught by a subject-matter expert with hands-on industry experience

Requires students to have foundational knowledge in coding and Fabric

May require learners to have access to specific software and tools

Reviews summary

Mastering hyperledger chaincode development golang

Students learning how to develop chaincode for Hyperledger Fabric are likely to be highly satisfied with this course. The course provides a comprehensive overview of the necessary concepts, with hands-on activities and a pre-configured development environment that simplifies the learning process.

Pre-configured development environment

"Ready to use development environment setup with multiple configurations..."

Clear, easy to understand

Comprehensive, easy to follow

"The course provides a comprehensive guide on how to productively develop chaincode..."

Hands-on activities

"Every section requires the student to do coding (exercises)..."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Mastering Hyperledger Chaincode Development using GoLang with these activities:

Organize course materials and notes

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Keep course materials organized to facilitate effective review and retention.

Browse courses on Note-Taking

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Create a system for organizing notes, assignments, and quizzes
Review and summarize materials regularly
Highlight key concepts and ideas

Review Node.js Basics

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Ensure foundational understanding of Node.js concepts for effective Fabric development.

Browse courses on Node.js

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Revisit key concepts of Node.js, such as modules, event-driven architecture, and asynchronous programming.
Practice writing basic Node.js scripts to reinforce your understanding.

Solve coding challenges on LeetCode or similar platforms

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Sharpen problem-solving and coding skills through practice.

Browse courses on Programming

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Select coding challenges relevant to Hyperledger Fabric development
Solve the challenges using GoLang
Review solutions and learn from mistakes

16 other activities

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Show all 19 activities

Review blockchain concepts

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This activity will help you refresh your knowledge of blockchain concepts and prepare you for the course.

Browse courses on Blockchain Fundamentals

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Read the Hyperledger Fabric documentation on the following topics:
Watch videos on YouTube or Coursera about blockchain

Join a study group or online forum

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This activity will help you connect with other students and learn from their experiences.

Browse courses on Hyperledger Fabric

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Find a study group or online forum
Introduce yourself and ask questions
Participate in discussions

Review basics of Golang programming

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Ensure foundational understanding of the GoLang programming language syntax and principles.

Browse courses on Golang

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Review online tutorials on GoLang basics
Practice writing simple GoLang programs
Install Go toolset and set up a development environment

Follow tutorials on Hyperledger Fabric

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This activity will help you learn more about Hyperledger Fabric and chaincode development.

Browse courses on Hyperledger Fabric

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Find tutorials on Hyperledger Fabric
Follow the tutorials to learn about the different features of Hyperledger Fabric

Watch Hyperledger Fabric Tutorials

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Provide a solid foundation in Hyperledger Fabric concepts and tools.

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Identify reputable sources for Hyperledger Fabric tutorials.
Create a dedicated notebook for taking notes and recording key concepts.
Actively follow the tutorials, taking notes and experimenting with code examples.

Follow Hyperledger Fabric tutorials

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Gain hands-on experience with Hyperledger Fabric through guided tutorials.

Browse courses on Hyperledger Fabric

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Set up a Hyperledger Fabric development environment
Follow tutorials on creating and deploying a basic blockchain network
Experiment with different Hyperledger Fabric features

Join a Fabric Development Community

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Facilitate knowledge sharing and provide opportunities for collaboration.

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Identify online forums or communities focused on Fabric development.
Actively engage in discussions, asking questions and sharing insights.
Contribute to the community by answering questions and assisting other members.

Practice writing chaincode

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This activity will help you practice writing chaincode and become more comfortable with the development process.

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Set up a development environment
Follow the tutorials in the course to write a simple chaincode
Experiment with different chaincode functions

Solve Fabric Code Challenges

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Enhance understanding of Fabric chaincode development and identify areas for improvement.

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Set up a development environment for Fabric.
Access online platforms or repositories for Fabric code challenges.
Select code challenges aligned with your skill level.
Solve the challenges, implementing the necessary logic and addressing functional requirements.
Review solutions and identify potential optimizations to your approach.

Attend Hyperledger Fabric workshops

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Gain insights from experts and network with peers at Hyperledger Fabric workshops.

Browse courses on Hyperledger Fabric

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Research and identify relevant workshops
Register for and attend workshops
Actively participate in discussions and demonstrations

Build a simple Hyperledger Fabric application

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Apply knowledge of Hyperledger Fabric and GoLang to develop a functional blockchain application.

Browse courses on Hyperledger Fabric

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Design the application architecture and data model
Write the chaincode using GoLang
Deploy and test the application on a Hyperledger Fabric network
Document the application and its functionality

Build a Fabric Proof of Concept

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Demonstrate practical application of Fabric concepts and gain valuable hands-on experience.

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Define the scope and objectives of the proof of concept.
Design the Fabric network architecture and define chaincode logic.
Develop the necessary chaincode and deploy it to the network.
Test and validate the proof of concept, ensuring functional and non-functional requirements are met.
Document the process and findings in a comprehensive report.

Contribute to Fabric Open Source Projects

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Provide practical experience in Fabric development and contribute to the community.

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Identify Fabric open source projects that align with your interests.
Review the project documentation and familiarize yourself with the codebase.
Propose changes or enhancements, following the project's contribution guidelines.
Work with project maintainers to refine your contributions and ensure they meet quality standards.

Build a simple blockchain application

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This activity will help you apply your knowledge of chaincode development to build a real-world application.

Browse courses on Application Development

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Design the application
Write the chaincode
Deploy the application
Test the application

Start a blockchain project

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This activity will help you apply your knowledge of Hyperledger Fabric to a real-world project.

Browse courses on Blockchain Development

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Come up with a project idea
Write a project proposal
Find a team to work with
Build the project
Deploy the project

Mentor junior developers in Hyperledger Fabric

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Share knowledge and experience by mentoring junior developers in Hyperledger Fabric.

Browse courses on Hyperledger Fabric

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Identify opportunities to mentor junior developers
Provide guidance and support on Hyperledger Fabric concepts
Review and provide feedback on their work
Encourage their growth and development

Career center

Learners who complete Mastering Hyperledger Chaincode Development using GoLang will develop knowledge and skills that may be useful to these careers:

Blockchain Developer

In the role of Blockchain Developer, you will gain the skills necessary to not only build and deploy smart contracts, but also to create and maintain blockchain networks. This course may be useful to you as you learn the Hyperledger Chaincode Development language of GoLang. Such skills are in high demand. The curriculum covers security features such as private data and endorsement policies, increasing the value of your skill set in the eyes of potential employers. If you want to learn Hyperledger Chaincode Development, this course may help you reach your goal.

See salaries and explore the career path for Blockchain Developer

Software Engineer

Software Engineers are in high demand because of their expertise in designing, developing, testing, and maintaining software systems. If you want to become a Software Engineer, this course provides an excellent foundation. Specifically, the section on designing for private data and transactions will prepare you to work on blockchain-based systems.

See salaries and explore the career path for Software Engineer

Full-Stack Developer

Full Stack Developers are responsible for the entire software development process, from design and development to deployment and maintenance, and are highly valued for their well-rounded skill set. This course can help you become a Full Stack Developer by teaching you about Hyperledger Chaincode Development in GoLang. Mastering Hyperledger Chaincode Development with GoLang is a valuable skill that will help you attain employment in this competitive field.

See salaries and explore the career path for Full-Stack Developer

Systems Analyst

As a Systems Analyst, you would be responsible for studying existing systems to determine their strengths and weaknesses and then designing, developing, and testing new or enhanced systems. This course can help you to understand how to build and deploy blockchain-based systems. Mastery of the Hyperledger Chaincode Development language of GoLang is important for a Systems Analyst, as it allows you to interact with and modify blockchain systems.

See salaries and explore the career path for Systems Analyst

Database Administrator

Database Administrators are responsible for the installation, configuration, maintenance, and performance of database systems, including blockchain databases. This course provides a strong foundation in Hyperledger Chaincode Development in GoLang, a valuable skill for a Database Administrator. You will learn how to design and implement blockchain-based database systems to suit specific business needs.

See salaries and explore the career path for Database Administrator

IT Architect

IT Architects design, plan, and implement IT solutions for organizations. This course provides a strong foundation in Hyperledger Chaincode Development in GoLang, a valuable skill for an IT Architect. By mastering this material, you will be able to help organizations design and implement blockchain-based solutions.

See salaries and explore the career path for IT Architect

Blockchain Engineer

As a Blockchain Engineer, you will be responsible for developing and maintaining blockchain-based systems. This course provides the skills necessary to build and deploy blockchain-based systems using the Hyperledger Chaincode Development language of GoLang. You will learn how to design, develop, and test blockchain-based applications, making you a valuable asset for any organization.

See salaries and explore the career path for Blockchain Engineer

Security Engineer

Security Engineers are responsible for designing, implementing, and maintaining security measures to protect an organization's information systems. This course may be useful for you as you will learn how to develop secure blockchain-based applications using GoLang. This skill is in high demand as organizations seek to protect their blockchain-based systems from attack.

See salaries and explore the career path for Security Engineer

Cloud Engineer

Cloud Engineers design, build, and maintain cloud-based systems and are responsible for ensuring the reliability, scalability, and security of these systems. This course may be useful as you learn how to develop and deploy blockchain-based systems on the cloud using GoLang. This skill is in demand as organizations increasingly move their blockchain systems to the cloud.

See salaries and explore the career path for Cloud Engineer

Data Analyst

Data Analysts collect, clean, and analyze data to help organizations make informed decisions. This course may be helpful in this field as you will learn how to use GoLang to develop applications that can collect, clean, and analyze data from blockchain-based systems.

See salaries and explore the career path for Data Analyst

Data Scientist

Data Scientists use their knowledge of statistics, programming, and machine learning to solve business problems. This course may be useful to you as you will learn how to use GoLang to develop applications that can use machine learning to analyze data from blockchain-based systems.

See salaries and explore the career path for Data Scientist

Machine Learning Engineer

Machine Learning Engineers design, develop, and maintain machine learning models. This course may be useful to you as you will learn how to use GoLang to develop applications that can use machine learning to analyze data from blockchain-based systems.

See salaries and explore the career path for Machine Learning Engineer

Research Scientist

Research Scientists conduct research in various scientific fields, including computer science. This course may be useful as you will learn how to use GoLang to develop applications that can analyze data from blockchain-based systems, a growing area of research.

See salaries and explore the career path for Research Scientist

Software Architect

Software Architects design and develop software systems. This course may be useful as you will learn how to use GoLang to develop blockchain-based systems, a rapidly growing area of software development.

See salaries and explore the career path for Software Architect

Web Developer

Web Developers design and develop websites and web applications. This course may be useful as you will learn how to use GoLang to develop blockchain-based applications that can be accessed through the web.

See salaries and explore the career path for Web Developer