Blockchain Skills Portfolio Showcase

While not a full tutorial this will be a breakdown of content created by me to showcase my knowledge and skills with Blockchain Architecture and Development.

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Lesson Outline for Blockchain Development with Solidity

Module 1: Introduction to Blockchain and Ethereum

  • Lesson 1.1: Blockchain Fundamentals
    • What is a blockchain? Key concepts: decentralization, consensus, immutability
    • Types of blockchains: Public vs. private, permissioned vs. permissionless
  • Lesson 1.2: Introduction to Ethereum
    • Overview of the Ethereum network and the Ethereum Virtual Machine (EVM)
    • Ether (ETH), gas fees, and basic Ethereum terminology
  • Lesson 1.3: Basics of Smart Contracts
    • What are smart contracts? Real-world applications and limitations
    • Overview of Solidity as a smart contract programming language

Module 2: Getting Started with Solidity

  • Lesson 2.1: Setting Up the Development Environment
    • Installing tools: Node.js, Solidity compiler, and Hardhat or Remix IDE
    • Creating a basic project structure and compiling your first contract
  • Lesson 2.2: Writing Your First Solidity Contract
    • Solidity syntax basics: Data types, variables, and functions
    • Structure of a contract and writing a simple storage contract

Module 3: Solidity Language Fundamentals

  • Lesson 3.1: Variables and Data Types
    • Basic data types (uint, int, bool, string, address) and their uses
    • Arrays, structs, and enums in Solidity
  • Lesson 3.2: Functions and Control Structures
    • Visibility specifiers (public, private, internal, external)
    • Control structures: if-else, loops, and function modifiers
    • Lab: Writing functions to manipulate data within a contract

Module 4: Ethereum Smart Contracts – Deep Dive

  • Lesson 4.1: Working with Ether and Gas
    • Transferring Ether between contracts, understanding gas and gas optimization
    • Introduction to payable functions and handling Ether in Solidity
  • Lesson 4.2: Mappings and Structs
    • Creating mappings for data storage and retrieval
    • Using structs to organize complex data
    • Lab: Developing a simple ledger system with mappings and structs

Module 5: Smart Contract Security

  • Lesson 5.1: Common Vulnerabilities and Best Practices
    • Understanding reentrancy, overflow/underflow, and gas limit issues
    • Tools for detecting vulnerabilities (e.g., Slither, MythX)
  • Lesson 5.2: Implementing Security in Contracts
    • Using OpenZeppelin libraries for secure code
    • Lab: Applying checks-effects-interactions pattern and using modifiers for security

Module 6: Interacting with Smart Contracts

  • Lesson 6.1: Contract-to-Contract Interactions
    • Calling other contracts from Solidity, importing external contracts
    • Writing interfaces for external contracts
    • Lab: Developing a contract that interacts with an ERC20 token
  • Lesson 6.2: Frontend Integration
    • Introduction to Web3.js or ethers.js
    • Connecting a frontend to your Solidity contract with a simple UI

Module 7: Building and Testing DApps with Hardhat and Truffle

  • Lesson 7.1: Project Setup and Testing
    • Setting up a new project with Hardhat, writing initial tests in javascript
    • Introduction to testing frameworks (Mocha, Chai)
  • Lesson 7.2: Deployment and Testing on a Local Blockchain
    • Running a local blockchain (Hardhat Network)
    • Deploying contracts and writing comprehensive tests
    • Lab: Testing functions, events, and edge cases in a sample DApp

Module 8: Developing and Deploying ERC20 & ERC721 Tokens

  • Lesson 8.1: Developing ERC20 Tokens
    • ERC20 standard overview, writing an ERC20 token
    • Implementing additional features (e.g., burn, mint, pause)
  • Lesson 8.2: Introduction to NFTs and ERC721 Tokens
    • ERC721 standard overview and use cases
    • Lab: Creating a basic NFT contract with ERC721

Module 9: Final Project and Deployment to Ethereum

  • Lesson 9.1: Final Project Planning and Development
    • Designing a DApp using knowledge from previous modules
    • Integrating frontend and backend with smart contracts
  • Lesson 9.2: Deployment to Ethereum Testnets and Mainnet
    • Deploying to testnets (e.g., Rinkeby, Goerli) and mainnet considerations
    • Monitoring and interacting with deployed contracts on Etherscan
    • Project showcase and review
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