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

# Request signature

The `request` method facilitates the use of templated transaction screens for signing transactions.

Please check the list of [JSON RPC methods](https://metamask-docs-git-imp-agt-scr-90-100-consensys-ddffed67.vercel.app/wallet/reference/json-rpc-api/), noting that the request method currently supports only the signing methods.

## Parameters[​](#parameters "Direct link to Parameters")

| Arguments     | Description                                                                                                                                                                                            |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| chainConfig   | Defines the chain to be used for signature.                                                                                                                                                            |
| method        | JSON RPC method name in String. Currently, the request method only supports the singing methods.                                                                                                       |
| requestParams | Parameters for the corresponding method. The parameters should be in the list and correct sequence. Take a look at [RPC methods](https://metamask-docs-git-imp-agt-scr-90-100-consensys-ddffed67.vercel.app/wallet/reference/json-rpc-api) to know more. |

tip

Additionally you can associate a `getSignResponse` function to retrieve the signature for the request.

```
void Start()
{
    web3Auth = GetComponent<Web3Auth>();
    web3Auth.setOptions(new Web3AuthOptions()
    {

    });
    web3Auth.onSignResponse += onSignResponse;
}
private void onSignResponse(SignResponse signResponse)
{
    // Functions to be called after receiving sign response
}

```

## Usage[​](#usage "Direct link to Usage")

```
 public void PopupSignMessageUI() {
    var chainConfig = new ChainConfig()
    {
        chainId = "0xaa36a7",
        rpcTarget = "https://ethereum-sepolia.publicnode.com",
        ticker = "ETH",
        chainNamespace = Web3Auth.ChainNamespace.EIP155
    };

    JArray paramsArray = new JArray
    {
            "Hello World",
            account.Address,
            "Android"
    };

    web3Auth.request(chainConfig, "personal_sign", paramsArray);
}


private void onSignResponse(SignResponse signResponse)

{
    Debug.Log("Retrieved SignResponse: " + signResponse);
    updateConsole("Retrieved SignResponse: " + signResponse);
}


```