# Trait ethcore_rpc::v1::traits::web3::Web3 [−]

    pub trait Web3: Sized + Send + Sync + 'static {
        fn client_version(&self) -> Result<String, Error>;
        fn sha3(&self, Bytes) -> Result<H256, Error>;

        fn to_delegate<M: Metadata>(self) -> IoDelegate<Self, M> { ... }
    }

Web3 rpc interface.

## Required Methods

### `fn client_version(&self) -> Result<String, Error>`

Returns current client version.

### `fn sha3(&self, Bytes) -> Result<H256, Error>`

Returns sha3 of the given data

## Provided Methods

### `fn to_delegate<M: Metadata>(self) -> IoDelegate<Self, M>`

Transform this into an `IoDelegate`, automatically wrapping the parameters.

## Implementors

- `impl Web3 for Web3Client`

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