Ethereum & DeFi for JS Developers
summary
Shows how to build and deploy a real dApp using JavaScript/TypeScript with Angular or React and web3.js or Ethers plus MetaMask, including inspecting ABIs on Etherscan/BscScan, reading token allowance and sending approve transactions. Demonstrates a live approve on BSC (cheap testnet) and contrasts it with a high gas example on Ethereum, cites OneInch/One Network volume (~$360M/day, ~900k users) to illustrate scale, and explains immutability, proxy contracts and upgradable patterns.
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chapters (13)
- 0:00Introduction
- 3:42Talk outline
- 9:21What is Ethereum & EVM
- 15:07Smart contract properties
- 20:29Token standards & interaction
- 26:21DeFi smart contract types
- 28:48Oracles & external data
- 30:39dApp architecture
- 33:49DeFi security
- 37:21Frontend challenges
- 41:16Coding example
- 52:13Summary & resources
- 54:19Q&A
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