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# Get Delegation \[address.getDelegation]

Returns the address that an account has delegated to via [EIP-7702](https://eips.ethereum.org/EIPS/eip-7702), or `undefined` if the account is not delegated.

## Usage

This example gets the address an account delegated to through [EIP-7702](https://eips.ethereum.org/EIPS/eip-7702).

:::code-group
```ts twoslash [example.ts]
import { client } from './viem.config'

const delegation = await client.address.getDelegation({
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
})
// @log: '0x7e5F4552091A69125d5DfCb7b8C2659029395Bdf'
```

```ts twoslash [viem.config.ts] filename="viem.config.ts"
import { Client, http, publicActions } from 'viem'
import { mainnet } from 'viem/chains'

export const client = Client.create({
  chain: mainnet,
  transport: http(),
}).extend(publicActions())
```
:::

### Standalone Action

Call `Actions.address.getDelegation` directly by passing the Client as the first argument.

:::code-group
```ts twoslash [example.ts]
import { Actions } from 'viem'
import { client } from './viem.config'

const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
})
// @log: '0x7e5F4552091A69125d5DfCb7b8C2659029395Bdf'
```

```ts twoslash [viem.config.ts] filename="viem.config.ts"
import { Client, http } from 'viem'
import { mainnet } from 'viem/chains'

export const client = Client.create({
  chain: mainnet,
  transport: http(),
})
```
:::

## Recipes

### Confirm a Canonical Delegation

Use `blockHash` with `requireCanonical` when the delegation must come from the canonical chain. The provider rejects a block hash from an orphaned chain.

:::code-group
```ts twoslash [example.ts]
import { client } from './viem.config'

const delegation = await client.address.getDelegation({
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
  blockHash: '0x89644bbd5c8d682a2e9611170e6c1f02573d866d286f006cbf517eec7254ec2d', // [!code focus]
  requireCanonical: true, // [!code focus]
})
```

```ts twoslash [viem.config.ts] filename="viem.config.ts"
import { Client, http, publicActions } from 'viem'
import { mainnet } from 'viem/chains'

export const client = Client.create({
  chain: mainnet,
  transport: http(),
}).extend(publicActions())
```
:::

## Return Value

`Address | undefined`

The delegated address (checksummed), or `undefined` if the account is not delegated.

## Parameters

### address

* **Type:** `Address`

The address of the account to check for delegation.

```ts twoslash
import { Actions, Client, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = Client.create({ chain: mainnet, transport: http() })
// ---cut---
const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e', // [!code focus]
})
```

### blockHash

* **Type:** `Hex`

The delegation at a given block hash (EIP-1898).

```ts twoslash
import { Actions, Client, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = Client.create({ chain: mainnet, transport: http() })
// ---cut---
const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
  blockHash: '0x89644bbd5c8d682a2e9611170e6c1f02573d866d286f006cbf517eec7254ec2d', // [!code focus]
})
```

### blockNumber

* **Type:** `bigint`

The delegation at a given block number.

```ts twoslash
import { Actions, Client, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = Client.create({ chain: mainnet, transport: http() })
// ---cut---
const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
  blockNumber: 42069n, // [!code focus]
})
```

### blockTag

* **Type:** `'latest' | 'earliest' | 'pending' | 'safe' | 'finalized'`
* **Default:** `'latest'`

The delegation at a given block tag.

```ts twoslash
import { Actions, Client, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = Client.create({ chain: mainnet, transport: http() })
// ---cut---
const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
  blockTag: 'safe', // [!code focus]
})
```

### requireCanonical

* **Type:** `boolean`

Whether to error if the `blockHash` is not in the canonical chain. Can only be provided alongside `blockHash`.

```ts twoslash
import { Actions, Client, http } from 'viem'
import { mainnet } from 'viem/chains'

const client = Client.create({ chain: mainnet, transport: http() })
// ---cut---
const delegation = await Actions.address.getDelegation(client, {
  address: '0xA0Cf798816D4b9b9866b5330EEa46a18382f251e',
  blockHash: '0x89644bbd5c8d682a2e9611170e6c1f02573d866d286f006cbf517eec7254ec2d',
  requireCanonical: true, // [!code focus]
})
```