schema.graphql

type BlogPost {
  id: Int!
  content: String!
  createdAt: String!
  updatedAt: String!

  comments: [Comment!]!
}

type Comment {
  id: Int!
  content: String!
  createdAt: String!
  updatedAt: String!
}

input AddBlogPostInput {
  content: String!
}

input AddCommentInput {
  content: String!
  blogPostId: Int!
}

type Query {
  blogPosts: [BlogPost!]!
}

type Mutation {
  addBlogPost(data: AddBlogPostInput!): BlogPost!
  addComment(data: AddCommentInput!): Comment!
}

type Subscription {
  commentAdded: Comment
}