Recommended
Recommended
More Related Content
Similar to Build Blockchain dApps using JavaScript, Python and C - ATO.pdf
Similar to Build Blockchain dApps using JavaScript, Python and C - ATO.pdf (20)
Recently uploaded
Recently uploaded (20)
Build Blockchain dApps using JavaScript, Python and C - ATO.pdf
- 1. Build Blockchain dApps using JavaScript, Python and C# Russ Fustino Developer Advocate russ@algorand.com https://russ.algo.xyz/
- 2. No more assembly language! Russ Fustino Developer Advocate russ@algorand.com https://russ.algo.xyz/
- 3. 3 Building a dApp is hard… ▪ Where do I begin? ▪ Writing a Smart Contract seems difficult ▪ Transactions costs can be prohibitive ▪ What are dApps anyway? ▪ What skill set do I need to be a blockchain developer? ▪ What types of problems does blockchain solve?
- 4. 4 Agenda ▪ Use Cases ▪ Intro to Algorand ▪ Writing Smart Contracts o C# - Algorand for Visual Studio Extension o JavaScript – Reach o Python - Beaker Open source: https://github.com/algorand-devrel https://github.com/algorand/go-algorand
- 5. 5 Algorand Blockchain = Immutable Decentralized Ledger Blocks Transactions Accounts Assets Applications
- 6. 6 What Types of Problems Can I Solve with Blockchain? Problem: Farmers can not get paid for grain until they sell it. Agrotoken – Grain-backed, tradable digital assets “We transform grains into a digital asset, to store or exchange for supplies, services and other assets.” https://agrotoken.io/
- 7. 7 Problem: How to get funds to people in need? Disaster Relief https://www.aid.technology/kokua
- 8. 8 More Problems Blockchain Solves … Tamper-proof charity organizations : o China Ministry using blockchain − improve transparency of social services − tracking of donations / audit trail Voting - tamper-proof Healthcare - global access / medical records Automotive o supply chain visibility - vehicle integrity o details of wear and tear of spare parts, sensors writing to blockchain
- 9. 9 SIAE - Società Italiana degli Autori ed Editori (Italian Society of Authors and Publishers) Digital Copyright Assets using NFTs (Non-Fungible Tokens) • 4 million NFTs on Algorand for 95,000+ creators • Copyrights for the first time - represented as digital assets • Decentralized and Transparent public blockchain • Global and Open Infrastructure • End-to-end Protection • The Future https://www.algorand.com/resources/news/siae-launches-4-million-nfts-on-algorand-for-creators
- 10. 10 Algorand Layer 1 Features ▪ Algorand Accounts ▪ Algorand Standard Assets (ASA) ▪ Atomic Transactions ▪ Algorand Smart Contracts ▪ Reporting with Indexer Developer Docs: https://developer.algorand.org
- 11. 11 Algorand Standard Assets (ASA) FUNGIBLE TOKENS • In Game Points • Stable Coins • Loyalty Points • System Credits • Cryptocurrencies RESTRICTED FUNGIBLE TOKENS • Securities • Gov't Issued Fiat NON-FUNGIBLE TOKENS • In Game Items • Supply Chain • Real Estate • Identity • Certifications • Collectables RESTRICTED NON- FUNGIBLE TOKENS • Real Estate • Ownership Registries • Regulatory Certifications
- 12. 12 Blockchain wastes energy? • Some of them do – proof of work protocols vs. proof of stake • Algorand is Carbon Negative
- 13. 13 Blockchain Transactions are Expensive? ▪ Some blockchains range up to $2000+ per transaction o The average price per transaction on the Ethereum blockchain was $15, compared to fees during peak traffic last fall as high as a few hundred dollars. * ▪ Algorand is 1/20th of a cent * https://www.fool.com/the-ascent/cryptocurrency/articles/ethereum-transaction-fees-hit-6-month-low/
- 14. 14 Blockchain Transactions are Slow? ▪ In most cases, 1-1.5 hours per transaction on Bitcoin ▪ 12-14 seconds to mine one Ethereum block ▪ Algorand has instant transaction finality and is under 4 seconds for block generation
- 15. 15 What are Salaries Like? And the Opportunities? The entry level salary of a blockchain developer is $115,000 7 percent of developer positions now have blockchain requirements Blockchain Developer Developer
- 16. 16 Global Spending on Blockchain Solutions Blockchain development is poised to enter our technical lexicon in the same way “client-server programming” or “asynchronous programming” have.
- 18. 18 Writing smart contracts are considered complex? ▪ Developers often need a year of training to before safely handling state. ▪ Technology changes fast. ▪ State management within a contract involves... o Learning a new (lower-level) language like TEAL or Solidity. o Developing a skill set which is only applicable to the protocol/blockchain that language supports. o Limitations unique to each cryptographic protocol. ▪ Algorand’s ecosystem is booming and has great developer tools that make writing dApps (Decentralized Apps) easy. To be covered soon.
- 20. 20 Algorand Blockchain Pure Proof-of-Stake Protocol 20 TRANSACTION CERTAINTY Fueling Advances in Powerful Real-World Applications TRUE SCALABILITY ENERGY EFFICIENCY TECHNICAL FLEXIBILITY TRUE SECURITY COST EFFICIENCY INFRASTRUCTURE LONGEVITY PLATFORM EXTENSIBILITY 6000 TPS < 3.5s Block Times
- 21. 21 DeFi is exploding – Stable Coins Over 3 Billion in circulation.
- 22. 22 Decentralized Exchanges - DEX
- 23. 23 FIFA announces partnership with Algorand! • World football’s governing body confirms collaboration with green blockchain technology company Algorand • Algorand will become the official blockchain platform of FIFA • Partnership announced by FIFA President Gianni Infantino and Algorand founder Silvio Micali https://twitter.com/Algorand/status/15212 66776276803585
- 24. 24 FIFA NFT collectibles launched! https://collect.fifa.com/
- 25. 25 Sandbox + = sandbox • Clone https://github.com/algorand/sandbox • Defaults to Private Network (includes indexer) ./sandbox up • TestNet use: ./sandbox up TestNet (BetaNet, TestNet and MainNet are all supported)
- 26. 26 Ecosystem Tools and Projects https://developer.algorand.org/ecosystem-projects/
- 27. 27 Writing Smart Contracts 1. Algorand for Visual Studio (C# .NET) 2. Reach JavaScript Python 3. Beaker - Python
- 28. 28 Algorand for Visual Studio Extension C#
- 29. 29 Installation
- 30. 30 Build Web, Mobile, Console
- 31. 31 Demo - File | New Project | Algorand Maui Solution
- 32. 32 Demo - File | New Project | Algorand Web App
- 33. 33 .NET Resources ▪ Algorand for Visual Studio Extension https://github.com/FrankSzendzielarz/AlgorandVisualStudio ▪ .NET SDK https://github.com/FrankSzendzielarz/dotnet-algorand-sdk ▪ NuGet package: https://www.nuget.org/packages/Algorand2
- 35. 35 What is Reach? • Program • High-Level Language • Looks and feels like JavaScript • Compile • Interoperable with Just a Configuration Change • Mathematically Guarantees Safety • Outputs the Entire App (Not just Smart Contract) • Deploy • Launches Appropriate Node- Multiple Blockchains • Runs Test Simulation
- 36. 36 Reach Architecture Developer Docs: https://docs.reach.sh/
- 37. 37 Build with Reach Docs ▪ https://developer.algorand.org/docs/get-started/dapps/reach/
- 38. 38 Using Wallet Connect with Reach Tutorial Tutorial: https://developer.algorand.org/tutorials/using-walletconnect-with-reach-in-an-rsvp-system
- 39. 39 Morra Game Solution Using Reach https://developer.algorand.org/solutions/morra-game-using-reach/
- 40. 40 Demo - Morra Game Verificatio
- 42. 42 Web2 App Architecture Frontend Web Server Database
- 43. 43 Algorand SDK Frontend Web Server Database Algorand dApp Architecture Algorand Smart contract AVM Algorand SDK Smart contract
- 44. 44 Frontend Web Server Database Algorand Dapp Architecture Algorand Algorand SDK Smart contract AVM Smart contract Algorand SDK Smart contract
- 45. 45 What is Beaker? Python smart contract framework that improves: ● Code Organization ● Deployment / Interaction ● Debugging In short, it handles all the heavy lifting for you Beaker is a Python framework for building Smart Contracts on Algorand using PyTeal.
- 47. 47 Packages to Install ● Sandbox ● Pyteal ● Python Algorand SDK ● Beaker git clone https://github.com/algorand/sandbox.git
- 48. 48 Beaker Starter Kit 1. Launch Sandbox 2. Create Virtual Environment 3. Install all packages using requirements.txt python3 venv venv source ./venv/bin/activate pip install -r requirements.txt ./sandbox up dev https://github.com/algorand-devrel/beaker-starter-kit
- 51. 51 Code Beaker: Beaker Calculator https://github.com/algorand-devrel/beaker-calculator Beaker https://github.com/algorand-devrel/beaker Beaker Starter Kit https://github.com/algorand-devrel/beaker-starter-kit Beaker-TS https://github.com/algorand-devrel/beaker-ts Docs http://beaker.algo.xyz Auction Beaker-TS https://github.com/algorand-devrel/beaker-auction/blob/master/web/src/index.ts Reach: https://github.com/algorand-devrel/Walletconnect-Reach Algorand for Visual Studio Extension: https://github.com/FrankSzendzielarz/AlgorandVisualStudio
- 52. 52 Summary ▪ Use Cases ▪ Intro to Algorand ▪ Writing Smart Contracts o C# - Algorand for Visual Studio Extension o JavaScript – Reach o Python - Beaker PowerPoint: https://bit.ly/3TQzh92