將 Firestore 文件擷取為地圖 (非同步)
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將 Firestore 文件擷取為地圖 (非同步)。
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[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code sample demonstrates how to retrieve a Firestore document asynchronously as a map in Python.\u003c/p\u003e\n"],["\u003cp\u003eThe process involves setting up Application Default Credentials for Firestore authentication, as detailed in the provided documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe example shows how to access a specific document within a collection and print its data if it exists.\u003c/p\u003e\n"],["\u003cp\u003eFurther resources for retrieving data and other Firestore operations are available in the provided Firebase and Google Cloud documentation links.\u003c/p\u003e\n"]]],[],null,["# Retrieve Firestore Document as Map (async).\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Get data with Cloud Firestore](https://firebase.google.com/docs/firestore/query-data/get-data)\n- [Getting data](/firestore/native/docs/query-data/get-data)\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 doc = await doc_ref.get()\n if doc.exists:\n print(f\"Document data: {doc.to_dict()}\")\n else:\n print(\"No such document!\")\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)."]]