Building Ethereum powered DApps

A lightning talk on tools and workflow for building Smart Contract powered web applications

Transcript

1. Building Ethereum powered DApps Arpit Mathur @arpit
2. @arpit Quick Poll • Software/Web Developers? ◦ JavaScript? ▪ React? ◦ Rails?
3. @arpit Traditional App Stack
4. @arpit Decentralized App Stack
5. @arpit Communicating with the Network • JSON RPC • Web3.js • Injected Web3.js • Web dev framework (Truffle)
6. @arpit Ganache / Ganache CLI
7. @arpit Truffle • “Rails for Ethereum Dapps” • “Truffle Boxes”: Preconfigured projects http://truffleframework.com/
8. @arpit Remix IDE
9. @arpit Metamask • Ethereum Wallet • Chrome Extension • Injects configured Web3.js into your page
10. @arpit A Simple Contract
11. @arpit Workflow • Create Contract in Solidity • Move Contracts to /contracts directory • Compile contract: ◦ `truffle compile` • Run Ganache (local test net) • Deploy Contracts ◦ `truffle migrate` • Import Contract JavaScript stub in your clientside code ◦ import MyContract from '../../../build/contracts/MyContract.json' • Execute functions on Contract in JavaScript (at the right address)
12. @arpit Profit?
13. @arpit Links and such! • http://truffleframework.com • https://solidity.readthedocs.io • https://metamask.io/