> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sequence.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# useHasPermission

> 現在のSequence V3セッションが一連のトランザクションを実行できるかどうかを確認するフック

## インポート

```tsx theme={null}
import { useHasPermission } from '@0xsequence/connect'
```

## 使い方

```tsx theme={null}
import { useHasPermission } from '@0xsequence/connect'
import { encodeFunctionData, type TransactionRequest } from 'viem'

function App() {
  const { checkPermission, isLoading, error, data } = useHasPermission()

  const check = async () => {
    const txs: TransactionRequest[] = [
      {
        to: '0x0000000000000000000000000000000000000000',
        data: encodeFunctionData({
          abi: [
            {
              type: 'function',
              name: 'foo',
              stateMutability: 'nonpayable',
              inputs: [],
              outputs: []
            }
          ],
          functionName: 'foo'
        })
      }
    ]

    const allowed = await checkPermission({ chainId: 42161, transactions: txs })
    console.log('Allowed:', allowed)
  }

  return (
    <div>
      <button onClick={check}>Check permission</button>
      {isLoading && <div>Checking...</div>}
      {error && <div>Error: {error.message}</div>}
      {data !== undefined && <div>Allowed: {data ? 'Yes' : 'No'}</div>}
    </div>
  )
}
```

## パラメータ

```tsx theme={null}
type HasPermissionParams = {
  chainId: number
  transactions: TransactionRequest[]
}
```

## 返り値の型

```tsx theme={null}
type UseHasPermissionReturnType = {
  isLoading: boolean
  error: Error | null
  data: boolean | undefined
  checkPermission: (params: HasPermissionParams) => Promise<boolean>
}
```

## 補足

* このフックは内部的にSequence V3コネクタを使用しています。
* 各トランザクションには`to`アドレスが必要です。