Link Filtering

You can filter on Links within Entries. The same logic applies as for nested filtering: your Content Model must include validations specifying the Content Type (or types) for the Link. For example, the following schema can be generated for a content model that contains a Blog Post content type, with the Title and Content fields as strings and a Link to an entry with a validation specifying an Author:

type BlogPost {
  sys: Sys
  title: String
  content: String
  author: Author
}
type Author {
  sys: Sys
  name: String
}

You can filter on any fields of the author type. For example:

query {
  blogPostCollection {
    items {
      title
      content
      author(where: {name: "Blog Post Author"}) {
        name
      }
    }
  }
}

If there is a match, the author will be returned. Otherwise, you will receive a null value. All of the same filters that are available on collections are available on this single link level.