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Building Ethereum powered DApps

Building Ethereum powered DApps

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

Arpit Mathur

May 04, 2018
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  1. Building
    Ethereum
    powered
    DApps
    Arpit Mathur
    @arpit

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  2. @arpit
    Quick Poll
    ● Software/Web Developers?
    ○ JavaScript?
    ■ React?
    ○ Rails?

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  3. @arpit
    Traditional App Stack

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  4. @arpit
    Decentralized App Stack

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  5. @arpit
    Communicating with the Network
    ● JSON RPC
    ● Web3.js
    ● Injected Web3.js
    ● Web dev framework (Truffle)

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  6. @arpit
    Ganache / Ganache CLI

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  7. @arpit
    Truffle
    ● “Rails for Ethereum Dapps”
    ● “Truffle Boxes”: Preconfigured
    projects
    http://truffleframework.com/

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  8. @arpit
    Remix IDE

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  9. @arpit
    Metamask
    ● Ethereum Wallet
    ● Chrome Extension
    ● Injects configured Web3.js into
    your page

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  10. @arpit
    A Simple Contract

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  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)

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  12. @arpit
    Profit?

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  13. @arpit
    Links and such!
    ● http://truffleframework.com
    ● https://solidity.readthedocs.io
    ● https://metamask.io/

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