> For the complete documentation index, see [llms.txt](https://v1.docs.blueberry.garden/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v1.docs.blueberry.garden/developer-guides/contracts/utils/erc1155naivereceiver.md).

# ERC1155NaiveReceiver

The `ERC1155NaiveReceiver` contract is an implementation of the `IERC1155Receiver` interface provided by OpenZeppelin, which allows the contract to receive ERC-1155 tokens. The contract handles single and batch transfers of ERC-1155 tokens, and can be used as a basic receiver for testing or simple use cases.

#### onERC1155Received

```solidity
function onERC1155Received(address, address, uint256, uint256, bytes calldata) external pure override returns (bytes4)
```

This function is called when a single ERC-1155 token is transferred to the contract. The function takes the following parameters:

* `address operator`: The address initiating the transfer.
* `address from`: The address from which the tokens are being transferred.
* `uint256 id`: The identifier of the token being transferred.
* `uint256 value`: The amount of tokens being transferred.
* `bytes calldata data`: Additional data provided with the transfer.

The function returns the function selector of `onERC1155Received` as a `bytes4` value, which is required by the ERC-1155 standard to acknowledge the successful receipt of the tokens.

#### onERC1155BatchReceived

```solidity
function onERC1155BatchReceived(address, address, uint256[] calldata, uint256[] calldata, bytes calldata) external pure override returns (bytes4)
```

This function is called when a batch of ERC-1155 tokens is transferred to the contract. The function takes the following parameters:

* `address operator`: The address initiating the transfer.
* `address from`: The address from which the tokens are being transferred.
* `uint256[] calldata ids`: An array of token identifiers being transferred.
* `uint256[] calldata values`: An array of amounts of tokens being transferred, with each element corresponding to an element in the `ids` array.
* `bytes calldata data`: Additional data provided with the transfer.

The function returns the function selector of `onERC1155BatchReceived` as a `bytes4` value, which is required by the ERC-1155 standard to acknowledge the successful receipt of the tokens.

#### supportsInterface

```solidity
function supportsInterface(bytes4 interfaceId) external view virtual override returns (bool)
```

This function checks if the contract supports a specific interface. It takes the following parameter:

* `bytes4 interfaceId`: The identifier of the interface to be checked.

The function returns a `bool` value indicating whether the contract supports the specified interface. In this implementation, the contract only supports the `IERC1155Receiver` interface.