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:

• Paginate data with query cursors
• Paginate data with query cursors

Code sample

Python

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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
# ...

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