[Документация Yandex Cloud](../../../../index.md) > [Yandex Cloud Video](../../../index.md) > Справочник API > [gRPC (англ.)](../index.md) > [Playlist](index.md) > Update

# Video API, gRPC: PlaylistService.Update

Updates an existing playlist's metadata and items.
Only fields specified in the field_mask will be updated.

## gRPC request

**rpc Update ([UpdatePlaylistRequest](#yandex.cloud.video.v1.UpdatePlaylistRequest)) returns ([operation.Operation](#yandex.cloud.operation.Operation))**

## UpdatePlaylistRequest {#yandex.cloud.video.v1.UpdatePlaylistRequest}

```json
{
  "playlist_id": "string",
  "field_mask": "google.protobuf.FieldMask",
  "title": "string",
  "description": "string",
  "items": [
    {
      // Includes only one of the fields `video_id`, `episode_id`
      "video_id": "string",
      "episode_id": "string",
      // end of the list of possible fields
      "position": "int64"
    }
  ],
  "style_preset_id": "string"
}
```

#|
||Field | Description ||
|| playlist_id | **string**

Required field. ID of the playlist to update.

The maximum string length in characters is 50. ||
|| field_mask | **[google.protobuf.FieldMask](https://developers.google.com/protocol-buffers/docs/reference/csharp/class/google/protobuf/well-known-types/field-mask)**

Required field. Field mask specifying which fields of the playlist should be updated.
Only fields specified in this mask will be modified;
all other fields will retain their current values.
This allows for partial updates. ||
|| title | **string**

New title for the playlist.

The maximum string length in characters is 300. ||
|| description | **string**

New description for the playlist.
Optional field that can provide additional information about the playlist.

The maximum string length in characters is 5000. ||
|| items[] | **[PlaylistItem](#yandex.cloud.video.v1.PlaylistItem)**

New list of items to include in the playlist.
This completely replaces the existing items if specified in the field mask.
The order of items in this list determines the playback order.

The maximum number of elements is 100. ||
|| style_preset_id | **string**

New ID of the style preset to be applied to the playlist player.

The maximum string length in characters is 50. ||
|#

## PlaylistItem {#yandex.cloud.video.v1.PlaylistItem}

Represents a single item in a playlist.
Each item references either a video or an episode and specifies its position in the sequence.

#|
||Field | Description ||
|| video_id | **string**

Identifier of a video included in the playlist.

The maximum string length in characters is 50.

Includes only one of the fields `video_id`, `episode_id`.

Specifies the content identifier type for this playlist item. ||
|| episode_id | **string**

Identifier of an episode included in the playlist.

The maximum string length in characters is 50.

Includes only one of the fields `video_id`, `episode_id`.

Specifies the content identifier type for this playlist item. ||
|| position | **int64**

Position of this item in the playlist sequence (zero-indexed).
Determines the playback order of content in the playlist.

Acceptable values are 0 to 100, inclusive. ||
|#

## operation.Operation {#yandex.cloud.operation.Operation}

```json
{
  "id": "string",
  "description": "string",
  "created_at": "google.protobuf.Timestamp",
  "created_by": "string",
  "modified_at": "google.protobuf.Timestamp",
  "done": "bool",
  "metadata": "google.protobuf.Any",
  // Includes only one of the fields `error`, `response`
  "error": "google.rpc.Status",
  "response": "google.protobuf.Any"
  // end of the list of possible fields
}
```

An Operation resource. For more information, see [Operation](../../../../api-design-guide/concepts/operation.md).

#|
||Field | Description ||
|| id | **string**

ID of the operation. ||
|| description | **string**

Description of the operation. 0-256 characters long. ||
|| created_at | **[google.protobuf.Timestamp](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#timestamp)**

Creation timestamp. ||
|| created_by | **string**

ID of the user or service account who initiated the operation. ||
|| modified_at | **[google.protobuf.Timestamp](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#timestamp)**

The time when the Operation resource was last modified. ||
|| done | **bool**

If the value is `false`, it means the operation is still in progress.
If `true`, the operation is completed, and either `error` or `response` is available. ||
|| metadata | **[google.protobuf.Any](https://developers.google.com/protocol-buffers/docs/proto3#any)**

Service-specific metadata associated with the operation.
It typically contains the ID of the target resource that the operation is performed on.
Any method that returns a long-running operation should document the metadata type, if any. ||
|| error | **[google.rpc.Status](https://cloud.google.com/tasks/docs/reference/rpc/google.rpc#status)**

The error result of the operation in case of failure or cancellation.

Includes only one of the fields `error`, `response`.

The operation result.
If `done == false` and there was no failure detected, neither `error` nor `response` is set.
If `done == false` and there was a failure detected, `error` is set.
If `done == true`, exactly one of `error` or `response` is set. ||
|| response | **[google.protobuf.Any](https://developers.google.com/protocol-buffers/docs/proto3#any)**

The normal response of the operation in case of success.
If the original method returns no data on success, such as Delete,
the response is [google.protobuf.Empty](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Empty).
If the original method is the standard Create/Update,
the response should be the target resource of the operation.
Any method that returns a long-running operation should document the response type, if any.

Includes only one of the fields `error`, `response`.

The operation result.
If `done == false` and there was no failure detected, neither `error` nor `response` is set.
If `done == false` and there was a failure detected, `error` is set.
If `done == true`, exactly one of `error` or `response` is set. ||
|#