How to create collection in Cloud Firestore from Javascript?

问题

When user creates account in my angular app, my app creates user account (using Firebase API) with email and password. But also I want to create new collection to hold more data like name, surname...

Each collection's name will have uid. But I don't know how to force it? db.createCollection('abcXdefX') doesn't exist. I've no idea what to do. Please, help.

回答1:

You cannot create empty collection, you have to create document inside. data model

function writeUserData(userId, name, email, imageUrl) {
      firebase.database().ref('users/' + userId).set({
        username: name,
        email: email,
        profile_picture : imageUrl
      });
    }

You can get user id in this way

var userId = firebase.auth().currentUser.uid;

For cloud firestore

db.doc(userId + '/data').set({
  name: name,
  email: email
});

firebase doc - read&write

来源：https://stackoverflow.com/questions/47871288/how-to-create-collection-in-cloud-firestore-from-javascript