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import { createPublicClient, http } from 'viem'
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import { mainnet } from 'viem/chains'
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const RPC_URL = 'https://rpc.ankr.com/eth'
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const client = createPublicClient({
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  chain: mainnet,
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  transport: http(RPC_URL)
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})

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import { createPublicClient, http } from 'viem'
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import { mainnet } from 'viem/chains'
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const RPC_URL = 'https://rpc.ankr.com/eth'
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const client = createPublicClient({
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  chain: mainnet,
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  transport: http(RPC_URL)
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})
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const run = async () => {
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  const blockNumber = await client.getBlockNumber()
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  console.log(blockNumber) // 17019110n
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}
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run()
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  .then()
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  .catch((err) => console.error(err))

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const run = async () => {
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  const balance = await client.getBalance({
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    address: '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045' // vitalik.eth
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  })
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  console.log('balance', balance) // 5149620840741634567741n
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}

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import { formatUnits } from 'viem'
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const run = async () => {
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  const balance = await client.getBalance({
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    address: '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045' // vitalik.eth
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  })
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  console.log('balance', balance)
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  console.log('balance in ETH', formatUnits(balance, 18))
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}
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// balance 5149620840741634567741n
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// balance in ETH 5149.620840741634567741

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import { parseAbi } from 'viem'
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const ERC20ABI = parseAbi([
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  'function symbol() public view returns (string)',
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  'function decimals() public view returns (uint8)',
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  'function totalSupply() public view returns (uint256)',
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  'function balanceOf(address _owner) public view returns (uint256 balance)'
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])

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const totalSupply = await client.readContract({
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  address: '0xdac17f958d2ee523a2206206994597c13d831ec7',
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  abi: ERC20ABI,
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  functionName: 'totalSupply'
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})
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console.log('totalSupply', totalSupply)
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console.log('totalSupply in USDT', formatUnits(totalSupply, 6))
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// totalSupply 35283904986788565n
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// totalSupply in USDT 35283904986.788565