0

I'm trying to read a specific field from all documents in a collection without listing all fields. For example, I want to only read and print Brand from all documents in Donut collection. But right now my python script is printing all fields in all documents (code obtained from: https://firebase.google.com/docs/firestore/quickstart). I couldn't find the answer in it. can someone help? Database Structure

Shanely
  • 73
  • 7
  • I don't think this is possible through the Admin SDKs (I'm sure it is not possible through the Node.js Admin SDK). However it is possible with the Firestore REST API with a [DocumentMask](https://cloud.google.com/firestore/docs/reference/rest/v1/DocumentMask) – Renaud Tarnec Mar 01 '21 at 08:25

2 Answers2

1

Try the codes below, it will print all Brand from all documents in Donut collection:

users_ref = db.collection('Donut')
docs = users_ref.stream()
for doc in docs:
    brand = u'{}'.format(doc.to_dict()['Brand'])
    print(brand)
JM Gelilio
  • 2,960
  • 1
  • 8
  • 20
0

If you just want one field you can use the get() method of the DocumentSnapshot. The code below should work for what you want:

users_ref = db.collection('Donut')
docs = users_ref.stream()
for doc in docs:
    brand = doc.get('Brand')
    print(brand)
M Saavedra
  • 1