Week1.3_Storage Factory And Fund me

Week1.3_Storage Factory And Fund me

💻 Code: https://github.com/PatrickAlphaC/storage_factory

Inheritance, Factory Pattern, and Interacting with External Contracts

• Factory Pattern
• Imports
• Deploy a Contract From a Contract
• Interact With a Deployed Contract
• Recap

Lesson 3: Fund Me

💻 Code: https://github.com/PatrickAlphaC/fund_me

Payable, msg.sender, msg.value, Units of Measure

• Payable
• Wei/Gwei/Eth Converter
• msg.sender & msg.value

Chainlink Oracles

• Decentralized Oracle Network Chainlink
  • Blockchains can’t make API calls
  • Centralized Nodes are Points of Failure
• data.chain.link
• Getting External Data with Chainlink Oracles
  • Chainlink
  • Faucets and Contract Addresses
    • Kovan
  • Getting Price Information

Importing from NPM and Advanced Solidity

• Decimals/Floating Point Numbers in Solidity
• latestRoundData
• Importing from NPM in Remix
• Interfaces
  • Introduction to ABIs
• Getting Price Feed Addresses
• getPrice
• Tuples
  • Unused Tuple Variables
• Matching Units (WEI/GWEI/ETH)
• getConversionRate
• Matching Units (Continued)
• SafeMath & Integer Overflow
  • using keyword
  • Libraries
  • SafeMath PSA
• Setting a Threshold
• Require
• Revert
• Withdraw Function
• Transfer
• Balance
• this
• Contract Owners
• Constructor
• ==
• Modifiers
• Resetting
• for loop
• Array Length
• Forcing a Transaction
• Recap