npm install @cowprotocol/sdk-viem-adapter

import { ViemAdapter } from '@cowprotocol/sdk-viem-adapter'
import { http, createPublicClient, privateKeyToAccount } from 'viem'
import { sepolia } from 'viem/chains'

const account = privateKeyToAccount('YOUR_PRIVATE_KEY' as `0x${string}`)
const transport = http('YOUR_RPC_URL')
const provider = createPublicClient({ chain: sepolia, transport })

const adapter = new ViemAdapter({ provider, signer: account })

const signerAdapter = adapter.signer

const iface = adapter.utils.createInterface(abi)

const chainId = await adapter.getChainId()

const code = await adapter.getCode('0x...')

const receipt = await adapter.getTransactionReceipt('0x...')

const value = await adapter.getStorageAt('0x...', '0x0')

const result = await adapter.call({
  to: '0x...',
  data: '0x...'
})

const result = await adapter.readContract({
  address: '0x...',
  abi: contractAbi,
  functionName: 'balanceOf',
  args: ['0x...']
})

const block = await adapter.getBlock('latest')

const contract = adapter.getContract('0x...', contractAbi)
const result = await contract.read.functionName()

const newAccount = privateKeyToAccount('0x...')
adapter.setSigner(newAccount)

const newProvider = createPublicClient({ chain: mainnet, transport: http() })
adapter.setProvider(newProvider)

const signer = adapter.signerOrNull()
if (signer) {
  // Use signer
}

const signerAdapter = adapter.createSigner(account)

import { useWalletClient, usePublicClient } from 'wagmi'
import { ViemAdapter } from '@cowprotocol/sdk-viem-adapter'

function MyComponent() {
  const publicClient = usePublicClient()
  const { data: walletClient } = useWalletClient()

  const adapter = new ViemAdapter({
    provider: publicClient,
    walletClient: walletClient
  })

  // Use adapter with SDK
}

import { ViemAdapter } from '@cowprotocol/sdk-viem-adapter'
import { http, createPublicClient, privateKeyToAccount } from 'viem'
import { mainnet } from 'viem/chains'

const account = privateKeyToAccount('0x...')
const provider = createPublicClient({
  chain: mainnet,
  transport: http('https://eth.llamarpc.com')
})

const adapter = new ViemAdapter({ provider, signer: account })

import { CowSdk, SupportedChainId } from '@cowprotocol/cow-sdk'
import { ViemAdapter } from '@cowprotocol/sdk-viem-adapter'
import { http, createPublicClient, privateKeyToAccount } from 'viem'
import { sepolia } from 'viem/chains'

const account = privateKeyToAccount('YOUR_PRIVATE_KEY' as `0x${string}`)
const transport = http('YOUR_RPC_URL')
const provider = createPublicClient({ chain: sepolia, transport })
const adapter = new ViemAdapter({ provider, signer: account })

const sdk = new CowSdk({
  chainId: SupportedChainId.SEPOLIA,
  adapter,
  tradingOptions: {
    traderParams: {
      appCode: 'YOUR_APP_CODE',
    },
    options: {
      chainId: SupportedChainId.SEPOLIA,
    },
  },
})

const orderId = await sdk.trading.postSwapOrder(/* ... */)