# Check the delegation state

> Learn how to check the delegation state.

# Check the delegation state

When using [spending limit delegation scopes](use-delegation-scopes/spending-limit.md) or relevant [caveat enforcers](../../reference/delegation/caveats.md),
you might need to check the remaining transferrable amount in a delegation.
For example, if a delegation allows a user to spend 10 USDC per week and they have already spent 10 - n USDC in the current period,
you can determine how much of the allowance is still available for transfer.

Use the `CaveatEnforcerClient` to check the available balances for specific scopes or caveats.

## Prerequisites

- [Install and set up the Smart Accounts Kit.](../../get-started/install.md)
- [Create a delegator account.](execute-on-smart-accounts-behalf.md#3-create-a-delegator-account)
- [Create a delegate account.](execute-on-smart-accounts-behalf.md#4-create-a-delegate-account)
- [Create a delegation with an ERC-20 periodic scope.](use-delegation-scopes/spending-limit.md#erc-20-periodic-scope)

## Create a `CaveatEnforcerClient`

To check the delegation state, create a [`CaveatEnforcerClient`](../../reference/delegation/caveat-enforcer-client.md).
This client allows you to interact with the <GlossaryTerm term="Caveat enforcer">caveat enforcers</GlossaryTerm> of the delegation, and read the required state.

<Tabs>
<TabItem value="example.ts">

```typescript

const caveatEnforcerClient = createCaveatEnforcerClient({
  environment,
  client,
})
```

</TabItem>
<TabItem value="config.ts">

```typescript

export const environment = getSmartAccountsEnvironment(chain.id)

export const publicClient = createPublicClient({
  chain,
  transport: http(),
})
```

</TabItem>
</Tabs>

## Read the caveat enforcer state

This example uses the [`getErc20PeriodTransferEnforcerAvailableAmount`](../../reference/delegation/caveat-enforcer-client.md#geterc20periodtransferenforceravailableamount) method to read the state and retrieve the remaining amount for the current transfer period.

<Tabs>
<TabItem value="example.ts">

```typescript

// Returns the available amount for current period.
const { availableAmount } =
  await caveatEnforcerClient.getErc20PeriodTransferEnforcerAvailableAmount({
    delegation,
  })
```

</TabItem>
<TabItem value="config.ts">

```typescript

// startDate should be in seconds.
const startDate = Math.floor(Date.now() / 1000)

export const delegation = createDelegation({
  scope: {
    type: ScopeType.Erc20PeriodTransfer,
    tokenAddress: '0xb4aE654Aca577781Ca1c5DE8FbE60c2F423f37da',
    periodAmount: parseUnits('10', 6),
    periodDuration: 86400,
    startDate,
  },
  to: delegateAccount,
  from: delegatorAccount,
  environment: delegatorAccount.environment,
})
```

</TabItem>
</Tabs>

## Next steps

See the [Caveat Enforcer Client reference](../../reference/delegation/caveat-enforcer-client.md) for the full list of available methods.