> ## Documentation Index
> Fetch the complete documentation index at: https://turnkey-0e7c1f5b-bc-add-sdk-typedoc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# BaseEthereumWallet

# Class: `abstract` BaseEthereumWallet

Defined in: [packages/wallet-stamper/src/ethereum.ts:23](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/wallet-stamper/src/ethereum.ts#L23)

Abstract class representing a base Ethereum wallet.
This class is used for stamping requests with an Ethereum wallet.

To use this class, extend it and implement the `signMessage` method
to provide a custom signing function. The `signMessage` method should
return a promise that resolves to a hexadecimal string representing
the signature of the provided message.

## Extended by

* [`EthereumWallet`](../EthereumWallet/readme)

## Implements

* [`EthereumWalletInterface`](../EthereumWalletInterface/readme)

## Constructors

### Constructor

> **new BaseEthereumWallet**(): `BaseEthereumWallet`

#### Returns

`BaseEthereumWallet`

## Properties

### type

> **type**: [`Ethereum`](../WalletType/readme#ethereum) = `WalletType.Ethereum`

Defined in: [packages/wallet-stamper/src/ethereum.ts:24](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/wallet-stamper/src/ethereum.ts#L24)

The type of the wallet.

#### Implementation of

[`EthereumWalletInterface`](../EthereumWalletInterface/readme).[`type`](../EthereumWalletInterface/readme#type)

## Methods

### getPublicKey()

> **getPublicKey**(): `Promise`\<`string`>

Defined in: [packages/wallet-stamper/src/ethereum.ts:40](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/wallet-stamper/src/ethereum.ts#L40)

Returns the public key, which is the SECP256K1 hex encoded public key from your Ethereum wallet.

#### Returns

`Promise`\<`string`>

A promise that resolves to a string representing the compressed public key.

#### Implementation of

[`EthereumWalletInterface`](../EthereumWalletInterface/readme).[`getPublicKey`](../EthereumWalletInterface/readme#getpublickey)

***

### signMessage()

> `abstract` **signMessage**(`message`): `Promise`\<`` `0x${string}` ``>

Defined in: [packages/wallet-stamper/src/ethereum.ts:33](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/wallet-stamper/src/ethereum.ts#L33)

Signs a message and returns the hex signature as a string.

#### Parameters

##### message

`string`

The message to be signed, either as a string or a Hex.

#### Returns

`Promise`\<`` `0x${string}` ``>

A promise that resolves to a Hex string representing the signature.

#### Implementation of

[`EthereumWalletInterface`](../EthereumWalletInterface/readme).[`signMessage`](../EthereumWalletInterface/readme#signmessage)