Decentralized App Development (dApps)

Target Group

This course aims at developers with at least basic skills in JavaScript and Solidity.

Learning objectives

You will learn how to use libraries like web3.js, and ethers.js to interact with smart contracts. Beside that, you will learn how to fork/clone a public Ethereum network, impersonate accounts and test/develop against real world scenarios.

free

yes

PC, browser

oettler@hs-mittweida.de

Course Content

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dApps 1: Introduction to dApp Development 3 Topics

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The dApp Development Stack

Principles and Architecture of Interacting with Smart Contracts

Survey Lesson dApps 1: Introduction to dApp Development

dApps2: Retrieving Information from the Blockchain with a Convenience Library 3 Topics

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Getting Familiar With web3.js

Preparation of Server and web3.js

Survey Lesson dApps2: Retrieving Information from the Blockchain with a Convenience Library

dApps 3: Retrieving Information from the Blockchain with the Ethereum Provider API 5 Topics

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Detecting and Understanding the Ethereum Provider

Requesting Information from the Ethereum Provider

Reacting on Provider Events

Some Example Methods of the Ethereum Provider API

Survey Lesson dApps 3: Retrieving Information from the Blockchain with the Ethereum Provider API

dApps 4: Sending Transactions 3 Topics

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Sending Transactions with web3.js

Sending Transactions via the Ethereum Provider Object

Survey Lesson dApps 4: Sending Transactions

dApps 5: Interacting With Smart Contracts with JavaScript 3 Topics

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Preparation for interacting with Smart Contracts

Getting in Touch with the Smart Contract

Survey Lesson dApps 5: Interacting With Smart Contracts with JavaScript

dApps 6: Ethereum Events (Log) 6 Topics

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Introduction to Ethereum Events

Events in Solidity

Reacting to Ethereum Events with JavaScript

Assignment Smart Contract Events

Reacting to Ethereum Events (Log) – Subscribe and Topics

Survey Lesson dApps 6: Ethereum Events (Log)

dApps 7: How to Fork (Clone) the Ethereum Mainnet wit Hardhat and Impersonate an Account 6 Topics

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Introduction to Forking the Mainnet

Preparation of (virtually) Forking the Ethereum Network

Forking the Ethereum Mainnet Locally and Impersonate an Account

Assignment Forking the Network with Hardhat

Allowing an RPC-Connection to the Forked Network

Survey Lesson dApps 7: How to Fork (Clone) the Ethereum Mainnet wit Hardhat and Impersonate an Account

Survey Course Decentralized App Development (dApps)