Faisal Abid - Adventures on the Ethereum blockchain: How to build a decentralized app - Codemotion Berlin 2018
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The document discusses decentralized applications (dapps), their characteristics, and how to build them using technologies like smart contracts, Whisper, and IPFS. It highlights the importance of frameworks such as Truffle and Embark for simplifying the development process and emphasizes the unique capacities of dapps to interact with the blockchain. The talk is aimed at educating attendees on the dapp ecosystem and dispels misconceptions about crypto ventures such as ICOs and profit motives.
Faisal Abid - Adventures on the Ethereum blockchain: How to build a decentralized app - Codemotion Berlin 2018
- 2. Who am I? - CTO at Zoom.ai - Google Developer Expert - Android, Node.js, Dart, Flutter early adopter - Entrepreneur
- 3. What this talk is about - Understanding what DApps are - Learning how to build DApps - Exploring the Web 3.0 stack
- 4. What this talk is NOT about - ICO’s - Getting rich quick - Ethereum price predictions
- 5. What is a DApp - Decentralized Applications - No single point of control - Existed for decades - Bittorrent, Tor, BitMessage - Combination of 3 technologies (Smart Contracts, Whisper, IPFS)
- 6. DApp
- 7. What is a DApp - “Unkillable” - DApps let you interact with the Blockchain using using Smart Contracts
- 8. What are Smart Contracts - Code that runs in a VM on a specific Blockchain - https://remix.ethereum.org/
- 10. Smart Contract
- 11. Smart Contract
- 12. Smart Contract
- 13. What are Smart Contracts - On Ethereum, Smart Contracts are written in Solidity - Smart Contracts are immutable - A new programming paradigm
- 14. What do I do with a Smart Contract? - A compiled Smart Contract is worthless. - You have to deploy it
- 15. Smart Contract
- 16. How do I connect to a Smart Contract? - Web3! - Web3 is a JS API that connects to a local Node instance
- 17. DApp
- 18. Smart Contract
- 19. Let’s stop there! - This just seems like too much work. And we haven’t even scratched the surface - There has to be a better way
- 20. Ethereum Dev Frameworks - https://truffleframework.com/ - https://embark.status.im/
- 21. DEMO ArcadeBlock
- 22. Truffle https://truffleframework.com/ - Easy to get started - “Boxes” for Angular, React - Just like building a normal web app, but integrating with Blockchain
- 23. Embark https://embark.status.im/ - Built by popular DApp - Status.im - New but excellent support for Whisper and IPFS
- 24. Whisper - Pub/Sub style messaging system - Plausible deniability
- 25. IPFS https://ipfs.io/ - Redundant distributed web - Hosted platform for HTML/CSS - Deploy Truffle or Embark apps on the platform for pure decentralization
- 26. Questions?