query GetFilesQuery($branch: GitObjectID, $query: String!) {
  search(first: 1, type: REPOSITORY, query: $query) {
    edges {
      node {
        ... on Repository {
          object(expression: "master:", oid: $branch) {
            ... on Tree {
              entries {
                name
                object {
                  ... on Blob {
                    text
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

{"branch": null, "query": "repo:rakam-io/segment-recipe extension:jsonnet filename:_config"}