| Time | Status | User Agent |  |
| :-- | :-- | :-- | :-- |
| Make a request to see history. |

#### URL Expired

The URL for this request expired after 30 days.

contentType

string

enum

required

The content type of the asset to upload. Must be one of: video/mp4, video/webm, or video/quicktime.

video/mp4video/webmvideo/quicktime

Allowed:

`video/mp4``video/webm``video/quicktime`

configuration

required

The configuration to use for the asset.

DubbingAssetRequestConfiguration
DubbingAssetRequestConfigurationobject

contentLength

integer | null

Defaults to null

The length of the file content to upload. This is used to verify the integrity of the asset during upload.

contentMD5

string | null

Defaults to null

The MD5 hash of the file content to upload. This is used to verify the integrity of the asset during upload.

title

string

length ≤ 256

Defaults to Untitled

# ``201      Created. Returns upload credentials for the multipart upload.

object

id

string

required

uploadUrl

string | null

Defaults to null

uploadCredentials

object

required

accessKeyId

string

required

secretAccessKey

string

required

sessionToken

string

required

bucket

string

required

key

string

required

# ``400      Unsupported Media Type.

# ``default      Unexpected Server error.

* * *

ShellNodeRubyPHPPython

```

xxxxxxxxxx

curl --request POST \

--url https://api.synthesia.io/v2/assets \

--header 'accept: application/json' \

--header 'content-type: application/json' \

--data '

{

"contentType": "video/mp4",

"contentLength": null,

"contentMD5": null,

"title": "Untitled"

}

'
```

```

xxxxxxxxxx

{

"id": "string",

"uploadUrl": "string",

"uploadCredentials": {

"accessKeyId": "string",

"secretAccessKey": "string",

"sessionToken": "string",

"bucket": "string",

"key": "string"

}
}