type-defs.gql

type Mdx implements Node {
    frontmatter: MdxFrontmatter!
}
type MdxFrontmatter @dontInfer {
    subject: SubjectJson! @link(by: "slug")
    slug: String!
    title: String!
    subtitle: String
    excerpt: String
    categories: [String!]
    tags: [String!]
    image: File @fileByRelativePath
    createdAt: Date @dateformat
    updatedAt: Date @dateformat
    order: Int
}
type SubjectJson implements Node @dontInfer {
    slug: String!
    title: String!
    sort: [String!]!
    posts: [Mdx!]! @link(by: "frontmatter.subject.slug", from: "slug")
}