Query a Firestore collection (async)

Query a Firestore collection (async).

Explore further

For detailed documentation that includes this code sample, see the following:

• Get data with Cloud Firestore
• Getting data
• Perform simple and compound queries in Cloud Firestore
• Query and filter data

Code sample

Python

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

# Note: Use of CollectionRef stream() is prefered to get()
docs = (
    db.collection("cities")
    .where(filter=FieldFilter("capital", "==", True))
    .stream()
)

async for doc in docs:
    print(f"{doc.id} => {doc.to_dict()}")

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