How to Interact with a Smart Contract (FROM SCRATCH!) - Alchemy University скачать в хорошем качестве

How to Interact with a Smart Contract (FROM SCRATCH!) - Alchemy University

If your web application wants to interact with a smart contract on Ethereum, it needs: 1. the contract's *address* 2. the contract's *ABI* We provide the ABI to the front-end library. The front-end library then translates and delivers any requests we make using that ABI. This video is part of a broader course curriculum of the Ethereum Developer Bootcamp in Alchemy University. For the full experience, please sign up today at university.alchemy.com 00:00 - How to interact with a contract deployed on Ethereum 00:22 - Introducing the Counter.sol smart contract 00:58 - How will we interact with this smart contract? 01:25 - How we set up our local environment / review of dotenv 02:22 - How to get an Alchemy API key 03:12 - Local project development 04:00 - Setting up dotenv config in project 05:10 - Writing the main() function 05:25 - Implementing a ethers.js Contract abstraction 08:18 - Implementing a ethers AlchemyProvider abstraction 11:10 - Making an asynchronous call to Ethereum and getting back a response 14:25 - Reading from our smart contract programmatically 15:31 - Writing to our smart contract programmatically #blockchain #smartcontracts #ethereum