var config = {

  apiKey: "AIzaSyCvpYQu44zmRXA0XQkcxEuakyytRsnWXSc",

  authDomain: "stackoverflow.firebaseapp.com",

  databaseURL: "https://stackoverflow.firebaseio.com",

  projectId: "project-8080059325282098184",

  storageBucket: "project-8080059325282098184.appspot.com",

  messagingSenderId: "82293832823"

};

firebase.initializeApp(config);

//firebase.firestore.setLogLevel('debug');

​

var db = firebase.firestore();

var root = db.collection("/71389577/");

var attractions = db.collectionGroup("attractions");

/*

let query = attractions

  .orderBy("name")

  .where("name", ">=", "A")

  .where("name", "<", "D")

  .orderBy(firebase.firestore.FieldPath.documentId())

  .startAt("71389577")

  .endAt("71389577" + "\uf8ff")

  ;

​

query.get().then((snapshot) => {

  console.log("Got "+snapshot.docs.length+" results");

  snapshot.docs.forEach(function (doc) {

    console.log(doc.id+": "+doc.data().name);

  });

}).catch((error) => {

  console.log('error', error);

})

*/

let query = attractions

  .orderBy("name")

  .orderBy(firebase.firestore.FieldPath.documentId())

//   .where("name", ">=", "A")

//   .where("name", "<=", "Z")

  .startAt("A", "71389577/\u0000")

  .endAt  ("Z", "71389577/\uf8ff")

  ;

​

query.get().then((snapshot) => {

  console.log("Got "+snapshot.docs.length+" results");

  snapshot.docs.forEach(function (doc) {

    const parentDoc = doc.ref.parent.parent.id;

    const grantparentDoc = doc.ref.parent.parent.parent.id

    console.log(`/${doc.ref.path}: ${doc.data().name}`);

  });

}).catch((error) => {

  console.log('error', error);

})