> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Signer

<Warning>
  **You are viewing docs for the previous version of the Wallets SDK.** We recommend upgrading to V1.
  See the [V1 migration guide](/wallets/guides/migrate-to-v1).
</Warning>

Defined in: [packages/wallets/src/signers/types.ts:142](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L142)

## Extended by

* [`ExportableSigner`](./ExportableSigner)

## Type Parameters

| Type Parameter                      | Default type          |
| ----------------------------------- | --------------------- |
| `T` *extends* keyof `SignResultMap` | keyof `SignResultMap` |

## Properties

### type

> **type**: `T`

Defined in: [packages/wallets/src/signers/types.ts:143](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L143)

## Methods

### address()?

> `optional` **address**(): `string`

Defined in: [packages/wallets/src/signers/types.ts:145](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L145)

#### Returns

`string`

***

### locator()

> **locator**(): `string`

Defined in: [packages/wallets/src/signers/types.ts:144](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L144)

#### Returns

`string`

***

### signMessage()

> **signMessage**(`message`): `Promise`\<`SignResultMap`\[`T`]>

Defined in: [packages/wallets/src/signers/types.ts:146](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L146)

#### Parameters

| Parameter | Type     |
| --------- | -------- |
| `message` | `string` |

#### Returns

`Promise`\<`SignResultMap`\[`T`]>

***

### signTransaction()

> **signTransaction**(`transaction`): `Promise`\<`SignResultMap`\[`T`]>

Defined in: [packages/wallets/src/signers/types.ts:147](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L147)

#### Parameters

| Parameter     | Type     |
| ------------- | -------- |
| `transaction` | `string` |

#### Returns

`Promise`\<`SignResultMap`\[`T`]>