Use start cursors and limits to paginate Firestore collections (async)

Use start cursors and limits to paginate Firestore collections (async).

Explore further

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

Code sample

Python

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

cities_ref = db.collection("cities")
first_query = cities_ref.order_by("population").limit(3)

# Get the last document from the results
docs = [d async for d in first_query.stream()]
last_doc = list(docs)[-1]

# Construct a new query starting at this document
# Note: this will not have the desired effect if
# multiple cities have the exact same population value
last_pop = last_doc.to_dict()["population"]

next_query = (
    cities_ref.order_by("population").start_after({"population": last_pop}).limit(3)
)
# Use the query for pagination
# ...

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser.