# Update metadata

Updates an existing metadata entry. Only provided fields are updated.

Endpoint: PATCH /v1/assets/{assetUuid}/metadata/{metadataUuid}
Version: 1.0.0
Security: Bearer

## Path parameters:

  - `assetUuid` (string, required)
    Unique identifier of the asset.

  - `metadataUuid` (string, required)
    Unique identifier of the metadata entry.

## Request fields (application/json):

  - `key` (string,null)
    Updated metadata key name.

  - `value` (string,null)
    Updated metadata value content.

## Response 200 fields (application/json):

  - `uuid` (string, required)
    Unique identifier for this metadata entry.

  - `assetUuid` (string, required)
    Identifier of the asset this metadata belongs to.

  - `createdAt` (string, required)
    Timestamp when this metadata entry was created.
    Example: "2025-11-23T14:15:22.123456Z"

  - `updatedAt` (string, required)
    Timestamp when this metadata entry was last modified.
    Example: "2025-11-23T14:15:22.123456Z"

  - `key` (string, required)
    Metadata key name.

  - `value` (string, required)
    Metadata value content.

## Response 401 fields (application/problem+json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

## Response 403 fields (application/problem+json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

  - `correlationId` (string,null)

## Response 404 fields (application/problem+json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

  - `correlationId` (string,null)

## Response 409 fields (application/problem+json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

  - `correlationId` (string,null)

## Response 422 fields (application/problem+json):

  - `errors` (array)

  - `errors.code` (string, required)

  - `errors.message` (string, required)

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

  - `correlationId` (string,null)

## Response 500 fields (application/problem+json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)

  - `correlationId` (string,null)