UpdateMediaInput input object

Specifies the input fields required to update a media object.

Input fields

• alt ([String](https://shopify.dev/docs/admin-api/graphql/reference/scalar#string-2021-01))
  The alt text associated to the media.
• id ([ID!](https://shopify.dev/docs/admin-api/graphql/reference/scalar#id-2021-01)) REQUIRED
  Specifies the media to update.
• previewImageSource ([String](https://shopify.dev/docs/admin-api/graphql/reference/scalar#string-2021-01))
  The source from which to update the media preview image. May be an external URL or signed upload URL.