david ostrowski
david ostrowski
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Відео

Solidity Event Monitoring with ethers.js on AWS EC2
Переглядів 104Місяць тому
Monitor your DAPP leveraging the contract address, ABI and JsonRpcProvider method from ethers.js github.com/dro20dayethereumchallenge/day4 more detailed video on similar topic: view log data via transactions or in-line deploy , monitor and write to log/ blockchain following this video: ua-cam.com/video/SdKxYXarn9U/v-deo.htmlsi=E9biOSaTIBln0Go3
Test your first Hello World Solidity smart contract in the HardHat environment (day 3/20)
Переглядів 81Місяць тому
Test your first Hello World Solidity smart contract in the HardHat environment (day 3/20) github.com/dro20dayethereumchallenge/day3
Solidity DAPP "Hello World" with React.js and Hardhat (day 2/20)
Переглядів 94Місяць тому
Updated version of my hello world on Hardhat with Node.js (v22) using Solidity and React.js github.com/dro20dayethereumchallenge/day2
Solidity Hello World from Hardhat command line (including reading data from Blockchain) day 1
Переглядів 83Місяць тому
Implement your first “Hello World” Solidity smart contract from the HardHat command console and read associated data directly from the blockchain Day 1 of 20- day challenge ( learn blockchain - make bank ) github.com/dro20dayethereumchallenge/day1
Base Installation for Ethereum Blockchain ( including Node.js, Ethers.js, web3) for AWS EC2 (day 0)
Переглядів 84Місяць тому
Prerequisite installation software for 20 day challenge including nodesource installation of node.js (v22), Ethers.js, web3, OpenZeppelin, chai and hardhat libraries. github.com/dro20dayethereumchallenge/day0
Simple Transaction to wrap ETH ( ETH to WETH) on Sepolia Ethereum (testnet) using Ethers.js and node
Переглядів 3283 місяці тому
Sepolia version of a simple transaction to programmatically wrap ETH ( convert ETH to WETH) on the Sepolia testnet (ethereum) blockchain see readme_install on the github along with associated files for all dirctions and example code github.com/dalfredostrowski/SepoliaETH_to_WETH
CHAT GPT PANIC part III ( last of the series )
Переглядів 3263 місяці тому
My final thoughts on our gen AI bubble
Simple Transaction to wrap ETH ( ETH to WETH ) on forked ethereum using Ethers.js and Node
Переглядів 923 місяці тому
This video will demonstrate from the node command line how to swap ETH for WETH on a forked copy of the ethereum blockchain. This will be demonstrated programmatically using the ethers.js library node.js, hardhat, forked ethereum all at the command line providing deeper insight into building deFi architectuere. github.com/dalfredostrowski/SimpleTransactionForkedEthereumETH_to_WETH
Uniswap v3 for obtaining token pricing information from Ethererum blockchain
Переглядів 794 місяці тому
This demo leveraged the Uniswap core libraries / api along with ethers.js and Infura in order to obtain pricing information for WETH using USDC github.com/dalfredostrowski/uniswapV3
Theory of Computation Lecture 12 Blank Tape Problem
Переглядів 784 місяці тому
Examination of blank tape problem in TOC along with its relevance to the concept of problem reduction
Theory of Computation : Lecture11 The Halting Problem
Переглядів 354 місяці тому
Basic explanation of the halting problem and its relevance.
Theory of Computation : Lecture10 LimitsOfComputation
Переглядів 774 місяці тому
This recording covers the concepts of countabilty of infinite sets, what infinite sets are not countable, the concept of diagonalization and how these support the idea of what exists as the limits of computation. This is supported by the post that more languages exist than the means to describe them.
EtherScanAPI demo with Node.js and Heroku
Переглядів 735 місяців тому
Implementation of a node.js application to serve the etherscan API as a dockerized application on Heroku. Preliminary testing and bulid performed on AWS/ EC2. github.com/dalfredostrowski/etherscan_endpoint_demo
Deploy Node.js App from AWS EC2 to Heroku
Переглядів 826 місяців тому
Deploy Node.js App from AWS EC2 to Heroku github.com/dalfredostrowski/node_deploy_heroku
Tiny Llama on AWS/ EC2 in 13 lines of code (installation / execution)
Переглядів 3357 місяців тому
Tiny Llama on AWS/ EC2 in 13 lines of code (installation / execution)
Aptos Blockchain, Move Programming, Typescript (React.js) "End to End DAPP" demo on AWS / EC2
Переглядів 1787 місяців тому
Aptos Blockchain, Move Programming, Typescript (React.js) "End to End DAPP" demo on AWS / EC2
Aptos Blockchain, Move Programming: "Token Vesting / Resource account" demo on AWS/EC2
Переглядів 1639 місяців тому
Aptos Blockchain, Move Programming: "Token Vesting / Resource account" demo on AWS/EC2
Aptos Blockchain, Move Programming: "create nft with resource account" demo on AWS/ EC2
Переглядів 1489 місяців тому
Aptos Blockchain, Move Programming: "create nft with resource account" demo on AWS/ EC2
Aptos Blockchain, Move Programming: "Your First Move Module" demo on AWS/ EC2
Переглядів 9910 місяців тому
Aptos Blockchain, Move Programming: "Your First Move Module" demo on AWS/ EC2
Aptos Blockchain, Move Programming: "First Fungible Asset" demo using TypeScript with AWS/ EC2
Переглядів 11710 місяців тому
Aptos Blockchain, Move Programming: "First Fungible Asset" demo using TypeScript with AWS/ EC2
Aptos Blockchain , Move programming : "Your First Coin" demo using TypeScript with AWS/ EC2
Переглядів 11510 місяців тому
Aptos Blockchain , Move programming : "Your First Coin" demo using TypeScript with AWS/ EC2
Aptos Blockchain: "Your first NFT" demonstration / tutorial using TypeScript with AWS/ EC2
Переглядів 8111 місяців тому
Aptos Blockchain: "Your first NFT" demonstration / tutorial using TypeScript with AWS/ EC2
Aptos Blockchain : "First Transaction" demonstration / tutorial Using TypeScript with AWS/ EC2
Переглядів 16711 місяців тому
Aptos Blockchain : "First Transaction" demonstration / tutorial Using TypeScript with AWS/ EC2
ChatGPT for private data Using LangChain OpenAI API
Переглядів 23011 місяців тому
ChatGPT for private data Using LangChain OpenAI API
Solidity Events: Transaction Log processing, Event Listening from HardHat console on EC2 (update)
Переглядів 187Рік тому
Solidity Events: Transaction Log processing, Event Listening from HardHat console on EC2 (update)
AAVE flash loan tutorial on Sepolia testnet, Hardhat console (updated), with AWS EC2
Переглядів 1,3 тис.Рік тому
AAVE flash loan tutorial on Sepolia testnet, Hardhat console (updated), with AWS EC2
AAVE Flash Loan tutorial on Forked Ethereum, Hardhat console
Переглядів 481Рік тому
AAVE Flash Loan tutorial on Forked Ethereum, Hardhat console
Hello Solidity / Hardhat : Running your first Solidity smart contract with Hardhat env and console
Переглядів 171Рік тому
Hello Solidity / Hardhat : Running your first Solidity smart contract with Hardhat env and console
Hello Solidity (updated) : Solidity Ganache with node.js (console) on EC2
Переглядів 87Рік тому
Hello Solidity (updated) : Solidity Ganache with node.js (console) on EC2