> For the complete documentation index, see [llms.txt](/llms.txt).

# Request signature

The `request` method opens built-in transaction screens for signing transactions. The method returns a `SignResponse?`. Use it to sign transactions on any EVM chain. You can white-label the screens to match your branding.

See the list of [JSON-RPC methods](https://metamask-docs-git-docs-agent-wallet-s-66054a-consensys-ddffed67.vercel.app/wallet/reference/json-rpc-api/). The `request` method currently supports only signing methods.

The SDK retrieves chain configuration automatically from your project settings in the Embedded Wallets dashboard.

![Request Method](/img/embedded-wallets/wallet-services/mobile-request-method.png) 

## Parameters

| Parameter       | Description                                                                                                                                                    |
| --------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `method`        | JSON RPC method name in `String`. Currently, the request method only supports the signing methods.                                                             |
| `requestParams` | Parameters for the corresponding method, in the correct sequence. See [JSON-RPC methods](https://metamask-docs-git-docs-agent-wallet-s-66054a-consensys-ddffed67.vercel.app/wallet/reference/json-rpc-api/) for details. |
| `path?`         | Path in the wallet WebView. The default is `"wallet/request"`.                                                                                                 |
| `appState?`     | Optional app state string to be passed through the request flow.                                                                                               |

## Usage

```swift
do {
    var params = [Any]()
    // Message to be signed
    params.append("Hello, Web3Auth from iOS!")
    // User's EOA address
    params.append(address)

    let response = try await web3Auth.request(
        method: "personal_sign",
        requestParams: params
    )

    if let response = response {
        if response.success {
            print(response.result!)
        } else {
            // Handle Error
            print(response.error!)
        }
    }
} catch {
    print(error.localizedDescription)
    // Handle error
}

```

## SignResponse

| Name      | Description                                                   |
| --------- | ------------------------------------------------------------- |
| `success` | Whether the request succeeded.                                |
| `result?` | Holds the signature for the request when `success` is `true`. |
| `error?`  | Holds the error for the request when `success` is `false`.    |