Consulta una colección de Firestore con un filtro cursor start at field
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Consulta una colección de Firestore con un filtro cursor start at field
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[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis page demonstrates how to query a Firestore collection using a cursor to start at a specific field value, allowing you to retrieve data from a certain point in the dataset.\u003c/p\u003e\n"],["\u003cp\u003eThe examples provided showcase the \u003ccode\u003eStartAt\u003c/code\u003e method in various programming languages, including C#, Go, Java, Node.js, PHP, Python, and Ruby.\u003c/p\u003e\n"],["\u003cp\u003eEach code sample requires authentication to Firestore, achieved by setting up Application Default Credentials, as detailed in the linked documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe query used in these samples orders the collection by the "population" field and then uses \u003ccode\u003eStartAt\u003c/code\u003e to begin the results from a specified population value.\u003c/p\u003e\n"],["\u003cp\u003eAdditional code samples for Google Cloud products, including Firestore, can be found using the Google Cloud sample browser.\u003c/p\u003e\n"]]],[],null,["# Query a Firestore collection with a cursor start at field filter\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### C#\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 Query query = citiesRef.OrderBy(\"Population\").StartAt(1000000);\n\n### Go\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 query := client.Collection(\"cities\").OrderBy(\"population\", firestore.Asc).StartAt(1000000)\n\n### Java\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 Query query = cities.orderBy(\"population\").startAt(4921000L);\n\n### Node.js\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 const startAtRes = await db.collection('cities')\n .orderBy('population')\n .startAt(1000000)\n .get();\n\n### PHP\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 $query = $citiesRef\n -\u003eorderBy('population')\n -\u003estartAt([1000000]);\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 cities_ref = db.collection(\"cities\")\n query_start_at = cities_ref.order_by(\"population\").start_at({\"population\": 1000000})\n\n### Ruby\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 query = cities_ref.order(\"population\").start_at(1_000_000)\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)."]]
