---
title: "addMultipartData(_:withName:type:filename:)"
framework: social
role: symbol
role_heading: Instance Method
path: "social/slrequest/addmultipartdata(_:withname:type:filename:)"
---

# addMultipartData(_:withName:type:filename:)

Specifies a named multipart POST body for this request.

## Declaration

```swift
func addMultipartData(_ data: Data!, withName name: String!, type: String!, filename: String!)
```

## Parameters

- `data`: The data for the multipart POST body, such as an image or text.
- `name`: The name of the multipart POST body. This is the name that a specific social service expects.
- `type`: The type of the multipart POST body. This is the MIME content type of the multipart data.
- `filename`: The filename of the attachment that you want to POST. Many social services require a filename in order to accept certain POST requests, such as uploading an image or video. If your multipart data does not require a filename, pass in nil.

## Discussion

Discussion Possible parameter values are dependent on the target service. This information, as well as guidance on when to use a multipart POST body, is documented by the service provider. For links to documentation for the supported services, see Table 1 in SLRequest.

## See Also

### Adding Data to the Request

- [addMultipartData(_:withName:type:)](social/slrequest/addmultipartdata(_:withname:type:).md)