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:

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

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

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

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.