Query a Firestore collection with a cursor start at document filter (async)
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Query a Firestore collection with a cursor start at document filter (async).
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For detailed documentation that includes this code sample, see the following:
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code snippet demonstrates how to query a Firestore collection asynchronously using a cursor that starts at a specific document.\u003c/p\u003e\n"],["\u003cp\u003eThe example uses the \u003ccode\u003estart_at()\u003c/code\u003e method with a document snapshot to define the starting point of the query.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication to Firestore is required and can be set up using Application Default Credentials, as referenced.\u003c/p\u003e\n"],["\u003cp\u003eAdditional information on query cursors for data pagination is available in the linked documentation.\u003c/p\u003e\n"]]],[],null,["# Query a Firestore collection with a cursor start at document filter (async).\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Paginate data with query cursors](/firestore/native/docs/query-data/query-cursors)\n- [Paginate data with query cursors](https://firebase.google.com/docs/firestore/query-data/query-cursors)\n\nCode sample\n-----------\n\n### Python\n\n\nTo authenticate to Firestore, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n doc_ref = db.collection(\"cities\").document(\"SF\")\n\n snapshot = await doc_ref.get()\n start_at_snapshot = (\n db.collection(\"cities\").order_by(\"population\").start_at(snapshot)\n )\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=firestore)."]]
