# How to specify a dynamic storage path? (/en/api-reference/faq/integration/dynamic_storage_path)

> For AI agents: see the complete documentation index at [llms.txt](/llms.txt).

When configuring the recording file storage path in the Console through the `fileNamePrefix` field,
you can use built-in variables to specify a dynamic path for storing recording files.
When the recording starts, variables are replaced with real values. The following two types of variables are currently supported:

| Type           | Variable                                            | Description                                                                                         |
| -------------- | --------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| Fixed variable | `${appId}`                                          | App ID                                                                                              |
|                | `${roomUuid}`                                       | The `uuid` of the class to be recorded                                                              |
| Date variable  | `${yyyy}`                                           | Year                                                                                                |
|                | `${MM}`                                             | Month                                                                                               |
|                | `${dd}`                                             | Day                                                                                                 |
|                | `${yyyyMMdd}`, `${yyyyMM}`, `${yyyy-dd}`,`${MM_dd}` | Date variables can be combined, such as year-month-day, year-month, year-day, month-day, and so on. |

For example, you set the `fileNamePrefix` field as follows:

```json
"fileNamePrefix": [
  "scenario",
  "recording",
  "${appId}",
  "${yyyyMM}",
  "${roomUuid}"
]
```

The recording storage path is `/scenario/recording/xxxxxxxxx/202107/demo/xxxxxxx_demo_0.mp4`.