ethereum-smart-contract-interaction-demo

Demo basic.sol interaction

git clone https://github.com/michael-spengler/ethereum-smart-contract-interaction-demo.git
cd ethereum-smart-contract-interaction-demo
ts-node src/basic-sol-interaction-demo.ts 

How we developed the Demo basic.sol

Connect to Ropsten Testnet

Get Ether on Ropsten

https://faucet.ropsten.be/

Choose an Ethereum Connector

Option 1: Run your own node and connect to it

https://ethereum.org/en/developers/docs/nodes-and-clients/run-a-node/

Option 2: Use https://infura.io/

Option 3: Use http://85.214.129.69:8545

Accounts with addresses 0x7e373834f8faBd1e26cf6466b580615f9F45a791 and 0x8E0A4827a1B5833415c64bBFA745f4084bC5183E can be used without a passphrase and have some ether to play around. These two can be used in the Remix IDE, as (in my case) the passphrase method doesn't work. If you need an account with ether, then write it in the group, so I can provide a public and private key. When using it in the Remix IDE, the URL has to be http://remix..., else it won't connect to the RPC.

Use ABI (Application Binary Interface)

Use the ABI of your smart contract in your TypeScript code