> For the complete documentation index, see [llms.txt](https://docs.ariaprotocol.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ariaprotocol.xyz/technical-docs/contract-docs/aria/claim/ariatokenclaim.md).

# AriaTokenClaim

**Inherits:** OwnableUpgradeable, UUPSUpgradeable

**Author:** Aria Protocol

Merkle claim for Aria Token

## State Variables

### claimRoot

Retreive the current claim root.

```solidity
bytes32 public claimRoot;
```

### ariaToken

Address of the aria erc20 token.

```solidity
IERC20 public ariaToken;
```

### tokensClaimed

Mapping of address to boolean of if an address has claim their tokens.

```solidity
mapping(address => bool) public tokensClaimed;
```

## Functions

### constructor

**Note:** oz-upgrades-unsafe-allow: constructor

```solidity
constructor();
```

### initialize

```solidity
function initialize(address _ariaToken, bytes32 _claimRoot, address _owner) external initializer;
```

### claim

Claim aria tokens.

```solidity
function claim(uint256 amount, bytes32[] calldata proof) public;
```

**Parameters**

| Name     | Type        | Description                                          |
| -------- | ----------- | ---------------------------------------------------- |
| `amount` | `uint256`   | Number of tokens claimable by a user.                |
| `proof`  | `bytes32[]` | Merkle proof proving a user is able to claim tokens. |

### updateClaimRoot

Updates the claim root.

*Only callable by owner.*

```solidity
function updateClaimRoot(bytes32 _claimRoot) external onlyOwner;
```

**Parameters**

| Name         | Type      | Description     |
| ------------ | --------- | --------------- |
| `_claimRoot` | `bytes32` | New claim root. |

### withdraw

Withdraws all tokens held by contract

*The zero address denotes ETH*

*Only callable by owner.*

```solidity
function withdraw(address _tokenAddress) external onlyOwner;
```

**Parameters**

| Name            | Type      | Description                   |
| --------------- | --------- | ----------------------------- |
| `_tokenAddress` | `address` | Address of tokens to withdraw |

### \_authorizeUpgrade

Internal function called when trying to perform upgrade

*Only callable by owner.*

```solidity
function _authorizeUpgrade(address) internal virtual override onlyOwner;
```

## Events

### TokensClaimed

```solidity
event TokensClaimed(bytes32 indexed root, address indexed claimer, uint256 amount);
```


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