> For the complete documentation index, see [llms.txt](https://sdk.venly.io/sdk-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.venly.io/sdk-reference/ts-js-v3/function-references/wallet/signatures/buildsignaturerequest.md).

# buildSignatureRequest

### Description

Transforms a generic signature request into a blockchain-specific signature request with all necessary parameters populated for the target network.

**Supported operations:**

* **Plain Message signing**
* **EIP-712 structured data signing**

{% code overflow="wrap" %}

```javascript
public buildSignatureRequest(reqParams: VyBuildSignatureRequestBase) : VyPromise<VyBuildSignatureResultDto>
```

{% endcode %}

{% tabs %}
{% tab title="Details" %}
**Parameters**

| reqParams | [VyBuildSignatureRequestBase](/sdk-reference/ts-js-v3/object-references/wallet/vybuildsignaturerequestbase.md) | Request data for the operation |
| --------- | -------------------------------------------------------------------------------------------------------------- | ------------------------------ |

**Returns**

VyPromise<[VyBuildSignatureResultDto](/sdk-reference/ts-js-v3/object-references/wallet/vybuildsignatureresultdto.md)>
{% endtab %}
{% endtabs %}