hyperledger/education-cryptomoji

Name: education-cryptomoji

Owner: Hyperledger

Description: null

Created: 2018-02-15 20:34:06.0

Updated: 2018-05-24 14:04:50.0

Pushed: 2018-05-24 15:16:46.0

Homepage: null

Size: 402

Language: JavaScript

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README

Hyperledger Cryptomoji

This educational curriculum includes a quick intro to blockchains generally, before diving into distributed application development by guiding students through building their own Cryptokitties clone built with Hyperledger Sawtooth and Javascript. It follows a bootcamp “sprint” format, providing a stub application for students to implement themselves and extensive tests to guide their work.

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Contents

• Prerequisites
• Sections
  • Part One: DIY Blockchain
  • Part Two: Sawtooth Cryptomoji
• Solution Code
• Contributing
• License

Prerequisites

Using this project and running its components requires Node 8 and Docker.

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Sections

The curriculum is broken up into two parts. Although they build on one another, if you are already familiar with blockchain basics you can likely skip part one. For detailed instructions on each section, head to their individual READMEs.

Part One: DIY Blockchain

README: code/part-one/README.md

Duration: 5-10 hours

Concepts:

• Basic blockchain structure
• Hashing
• Signing
• Consensus

Part one introduces you to general blockchain concepts by walking you through building your own. You should finish with basic working knowledge of hashing, signing, consensus algorithms, and the blockchain data structure itself.

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Part Two: Sawtooth Cryptomoji

README: code/part-two/README.md

Duration: 20-40 hours

Concepts:

• Hyperledger Sawtooth overview
• Writing clients
  • Building transactions and batches
  • Interacting with the Sawtooth REST API
• Writing transaction processors
  • Reading and writing state
  • Validating payloads

Part two is the actual Cryptomoji app. It should give you a detailed understanding of how to build both clients and “transaction processors” on Hyperledger Sawtooth. When you're done you will have a working full-stack application ready to be deployed on a Sawtooth blockchain.

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Solution Code

In addition to the prompts and stub functions in the master branch, this repo includes a solution branch with completed versions of both sections. This is intended primarily as a way for students to check their work, and become familiar with current best practices. If your intention is to complete the sprint, we recommended that you do not use this solution code as a way to get yourself unstuck. At least attempt every prompt, and if necessary, seek additional guidance from resources like Stack Overflow or Sawtooth's official chat.

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Contributing

This is an ongoing project, and we always appreciate involvement from outside contributors. We use GitHub Issues to track bugs, so if you have a problem to report, like a typo, a confusing lesson, or something not working as expected, just click on the Issues tab above, and then the New Issue button.

If you would like to go a step further and contribute code, consider giving our Contributing Guide a quick read to familiarize yourself with our PR process.

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License

The source code of this project is licensed for reuse under the Apache License Version 2.0.

The slides, videos, and original written material are licensed under Creative Commons Attribution 4.0.

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