# Whitelist Facet

{% hint style="warning" %}
Note that this page has not been updated to reflect the current state of Beanstalk, but is left here as a reference.
{% endhint %}

Whitelist Facet handles the whitelisting/dewhitelisting of assets on the [Deposit Whitelist](https://docs.bean.money/almanac/farm/silo#deposit-whitelist).

## Call Functions

### [Dewhitelist Token](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L56)

```solidity
function dewhitelistToken(address token) external payable;
```

Dewhitelists tokens on the Deposit Whitelist. A token can no longer be Deposited in the Silo after dewhitelisting. Can only be called by the owner of Beanstalk.

| Parameter | Type      | Description                       |
| --------- | --------- | --------------------------------- |
| `token`   | `address` | The token address to dewhitelist. |

### [Whitelist Token](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L71)

```solidity
function whitelistToken(
    address token,
    bytes4 selector,
    uint32 stalkIssuedPerBdv,
    uint32 stalkEarnedPerSeason
) external payable;
```

Adds a token to the Deposit Whitelist. Can only be called by the owner of Beanstalk.

| Parameter              | Type      | Description                                    |
| ---------------------- | --------- | ---------------------------------------------- |
| `token`                | `address` | The token address to whitelist.                |
| `selector`             | `bytes4`  | The selector for the BDV function of `token`.  |
| `stalkIssuedPerBdv`    | `uint32`  | Stalk per BDV for `token` issued upon Deposit. |
| `stalkEarnedPerSeason` | `uint32`  | Grown Stalk per BDV per Season for `token`.    |

### [Whitelist Token with Encode Type](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L96)

```solidity
function whitelistTokenWithEncodeType(
    address token,
    bytes4 selector,
    uint32 stalkIssuedPerBdv,
    uint32 stalkEarnedPerSeason,
    bytes1 encodeType
) external payable;
```

Adds a token to the Deposit Whitelist with an `encodeType`. Can only be called by the owner of Beanstalk.

| Parameter              | Type      | Description                                                          |
| ---------------------- | --------- | -------------------------------------------------------------------- |
| `token`                | `address` | The token address to whitelist.                                      |
| `selector`             | `bytes4`  | The selector for the BDV function of `token`.                        |
| `stalkIssuedPerBdv`    | `uint32`  | Stalk per BDV for `token` issued upon Deposit.                       |
| `stalkEarnedPerSeason` | `uint32`  | Grown Stalk per BDV per Season for `token`.                          |
| `encodeType`           | `bytes1`  | The encode type that should be used to encode the BDV function call. |

### [Update Stalk per BDV per Season for Token](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L119C8-L119C8)

```solidity
function updateStalkPerBdvPerSeasonForToken(
    address token,
    uint32 stalkEarnedPerSeason
) external payable;
```

Changes the Grown Stalk per BDV per Season for a token on the Deposit Whitelist. Can only be called by the owner of Beanstalk.

| Parameter              | Type      | Description                                 |
| ---------------------- | --------- | ------------------------------------------- |
| `token`                | `address` | The token address on the Deposit Whitelist. |
| `stalkEarnedPerSeason` | `uint32`  | The new Grown Stalk per BDV per Season.     |

## View Functions

None.

## Events

### [Whitelist Token](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L27) <a href="#event-whitelist-token" id="event-whitelist-token"></a>

```solidity
event WhitelistToken(
    address indexed token,
    bytes4 selector,
    uint32 stalkEarnedPerSeason,
    uint256 stalkIssuedPerBdv
);
```

Emitted when a token is added to the Deposit Whitelist.

| Parameter              | Type      | Description                                    |
| ---------------------- | --------- | ---------------------------------------------- |
| `token`                | `address` | The whitelisted token address.                 |
| `selector`             | `bytes4`  | The selector for the BDV function of `token`.  |
| `stalkEarnedPerSeason` | `uint32`  | Grown Stalk per BDV per Season for `token`.    |
| `stalkIssuedPerBdv`    | `uint256` | Stalk per BDV for `token` issued upon Deposit. |

### [Update Stalk per BDV per Season](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L40) <a href="#event-dewhitelist-token" id="event-dewhitelist-token"></a>

```solidity
event UpdatedStalkPerBdvPerSeason(
    address indexed token,
    uint32 stalkEarnedPerSeason,
    uint32 season
);
```

Emitted when the Grown Stalk per BDV per Season for a token on the Deposit Whitelist is changed.&#x20;

| Parameter              | Type      | Description                                   |
| ---------------------- | --------- | --------------------------------------------- |
| `token`                | `address` | The token address on the Deposit Whitelist.   |
| `stalkEarnedPerSeason` | `uint32`  | The new Grown Stalk per BDV per Season.       |
| `season`               | `uint32`  | The current Season at the time of the change. |

### [Dewhitelist Token](https://github.com/BeanstalkFarms/Beanstalk/blob/master/protocol/contracts/beanstalk/silo/WhitelistFacet.sol#L50) <a href="#event-dewhitelist-token" id="event-dewhitelist-token"></a>

```solidity
event DewhitelistToken(address indexed token);
```

Emitted when a token is removed from the Deposit Whitelist.

| Parameter | Type      | Description                      |
| --------- | --------- | -------------------------------- |
| `token`   | `address` | The dewhitelisted token address. |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.bean.money/developers/protocol/silo/whitelist-facet.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.