sample GQL query for fetching files via GitHub GQL API

querying_for_files.graphql

{
  # get a list of files off the tree entries
  repository(owner: "gjtorikian", name: "html-proofer") {
    ref(qualifiedName: "refs/heads/master") {
      target {
        ... on Commit {
          tree {
            entries {
              object {
                __typename
                ... on Blob {
                  id
                  text
                }
              }
            }
          }
        }
      }
    }
  }
  # or lookup directly off of a node
  node(id: "MDQ6QmxvYjg0NTE4OTM6ZGExMzJmOTIxMDVjZGQxMGVhYjViMjVhMGZlNmRhNGQ0MGJiOWIyOQ==") {
    __typename
    ... on Blob {
      text
    }
  }
}