Ink を基盤に、信頼性の高い RPC を構築するnodes

const { JsonRpcProvider, formatEther } = require("ethers");

const provider = new JsonRpcProvider("CHAINSTACK_NODE_URL");

async function main() {
  const network = await provider.getNetwork();
  console.log("Chain ID:", network.chainId.toString());

  const block = await provider.getBlockNumber();
  console.log("Block:", block);

  const balance = await provider.getBalance("0x4200000000000000000000000000000000000016");
  console.log("Balance:", formatEther(balance), "ETH");
}

main();

from web3 import Web3

web3 = Web3(Web3.HTTPProvider("CHAINSTACK_NODE_URL"))

print("Connected:", web3.is_connected())
print("Chain ID:", web3.eth.chain_id)
print("Block:", web3.eth.block_number)

address = Web3.to_checksum_address("0x4200000000000000000000000000000000000016")
balance = web3.eth.get_balance(address)
print("Balance:", web3.from_wei(balance, "ether"), "ETH")

cast chain-id --rpc-url CHAINSTACK_NODE_URL
cast block-number --rpc-url CHAINSTACK_NODE_URL
cast balance 0x4200000000000000000000000000000000000016 --ether --rpc-url CHAINSTACK_NODE_URL