# Sign Part

`Multipart Upload.lvclass:upload.sign_part.vi` · Palette: [Files › MultiPart File Upload](https://dev.nominal.io/ni-labview/ref/files/multipart-file-upload.md) · [Source](https://github.com/nominal-io/labview-client/blob/HEAD/lv_src/Nominal%20Client%20MultiPart%20Upload/upload.sign_part.vi)

![](https://dev.nominal.io/ni-labview/_images/cb16ffaa157ca297fa8ae3026d97bbe7_viicon.png)

Signs an upload request for a single part. Returns a URL that will execute the upload without further authentication.

The Part Number must be greater than 0.

![Connector pane of Sign Part](https://dev.nominal.io/ni-labview/_images/cb16ffaa157ca297fa8ae3026d97bbe7_connpane.png)

## Inputs

**Multipart Upload in** required
:   `Multipart Upload.lvclass`

**Part Number** required
:   `I32`

**error in**
:   `Error cluster`

## Outputs

**Multipart Upload out**
:   `Multipart Upload.lvclass`

**error out**
:   `Error cluster`