Writing Blockchain Clients in Swift

Try Swift Tokyo 2018

Transcript

1. Writing Blockchain Clients in Swift Tamar Nachmany
2. "ܪ"
3. immutable decentralized database
5. Ethereum
6. What is Ethereum? iOS App Store Facebook Messenger Alexa Ethereum
8. Alamofire of iOS Ethereum Development
9. Cocoapods of iOS Ethereum Development
10. How does an iOS app built on top of the Ethereum blockchain work?
11. iOS Client —Requests data —Requests new transactions —Interprets responses in UI Ethereum Client —Issues RPC to node & interprets responses Ethereum Node —Node containing blockchain
14. Thanks to Merkle trees, it is possible to build Ethereum nodes that run on all computers and laptops large and small, smart phones, and even internet of things devices - Vitalik Buterin
17. Swift on the Blockchain
18. Swift on the Blockchain —Geth —Go with Objective-C runtime bindings —Parity —Rust with Objective-C runtime bindings —Web3j —Java with Java to Objective-C Translator
19. @interface GethEthereumClient - (GethBigInt*)getBalanceAt:(GethContext*)ctx account:(GethAddress*)account number:(int64_t)number error:(NSError**)error;
20. Swift on the Blockchain —Web3.js
21. Web3.js Frameworks web3 web3-utils web3-eth web3-eth-accounts web3-eth-contract web3-eth-abi web3-eth-iban web3-bzz web3-shh
22. Swift on the Blockchain —Web3.js —React Native —Run on JavaScript runtime
23. Swift on the Blockchain —Web3.js —WebKit
24. Challenges —Language —Go, Rust, JavaScript, Java —Peformance —JavaScript in WebKit —Architecture —JavaScript in React Native
25. Web3.swift
26. Web3.swift web3 web3-utils web3-eth web3-eth-accounts web3-eth-contract web3-eth-abi web3-eth-iban web3-bzz web3-shh
27. Web3.swift web3-uikit web3-universal-login
30. ͘Π͢;͜ Tamar Nachmany @tamarshmallows
31. Watch this first Web3.js 1.0 Fabian Vogelsteller Ethereum Foundation Developers Conference http://bit.ly/2HU6sDN
32. Image Credits Slides 1, 14, 16: Mamie Rheingold