# RequestSignerDataCallback Function

> Callback function for requests receiving a SignerData object.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Function
- **Introduced:** 31.0
- **Path:** TX Text Control .NET Server > Reference > JavaScript API > RequestSignerDataCallback Function
- **277 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestsignerdatacallback/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestsignerdatacallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestsignerdatacallback/llms-full.txt

---

### Description

Callback function for requests receiving a [SignerData](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/signerdata/llms-full.txt) object.

### Syntax

```javascript
function(<SignerData> signerData)
```

### Examples

The following example demonstrates `RequestSignerDataCallback` in a practical document-editing workflow. Callback function for requests receiving a SignerData object.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

function requestSignerDataCallback(signerData) {
    console.log("signer data:", signerData);
}

function useRequestSignerDataCallback(signatureField) {
    signatureField.getSignerData(requestSignerDataCallback, onTxError);
}
```

---

## Nearby

- **Previous:** [RequestSignatureImageCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestsignatureimagecallback/llms-full.txt)
- **Next:** [RequestSizeCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestsizecallback/llms-full.txt)