Smart Contract client in multi languages

• JS: use ethers.js
• Rust: use ethers-rs
• Python: use web3.py

Prerequisite

• Foundry
• Ethers-rs
• Ethers.js
• web3.py

Compile & Deploy contract

• run a local node:

anvil
ETH_FROM=<account address from anvil>

• deploy contract to local net

cd contracts/
forge create src/Contract.sol:SimpleStorage --constructor-args 123 --unlocked --from $ETH_FROM
SIMPLE_STORAGE=<your deployed address>

• test functionality

cast --to-dec $(cast call $SIMPLE_STORAGE "get()")
> 123

cast send $SIMPLE_STORAGE "set(uint256)" 321 --from $ETH_FROM

cast --to-dec $(cast call $SIMPLE_STORAGE "get()")
> 321

Copy ABIs

• Copy abi from contracts/out/Contract.sol/SimpleStorage.json to clients/abis/SimpleStorage.json

Run Client

Rust

cd clients/rust/

cargo run

JS

cd clients/js/
yarn
node index.js

Python

cd clients/py/

# recommend to use virtual env to run
pip install -r requirements.txt
python main.py