t-practices)
      * [ Map data with Swift Codable  ](/docs/firestore/solutions/swift-codable-data-mapping)
      * [ Understand reads and writes at scale  ](/docs/firestore/understand-reads-writes-scale)
      * [ Understand real-time queries at scale  ](/docs/firestore/real-time_queries_at_scale)

    * Cloud Firestore integrations 

      * [ Use the Cloud Firestore REST API  ](/docs/firestore/use-rest-api)
      * [ Use Cloud Firestore and Realtime Database  ](/docs/firestore/firestore-for-rtdb)
      * [ Extend with Cloud Functions for Firebase (2nd gen)  ](/docs/firestore/extend-with-functions-2nd-gen)
      * [ Extend with Cloud Functions  ](/docs/firestore/extend-with-functions)
      * [ Third-party library integrations  ](/docs/firestore/library-integrations)

    * API reference 

      * [ Android  ](/docs/reference/android/com/google/firebase/firestore/package-summary)
      * [ Swift  ](/docs/reference/swift/firebasefirestore/api/reference/Classes)
      * [ Objective-C  ](/docs/reference/ios/firebasefirestore/api/reference/Classes)
      * [ Web  ](/docs/reference/js/firestore_)
      * [ Flutter  ](https://pub.dev/documentation/cloud_firestore/latest/)
      * [ Cloud Functions  ](/docs/reference/functions/firebase-functions.firestore)
      * [ Node.js  ](//googleapis.dev/nodejs/firestore/latest/)
      * [ Java  ](/docs/reference/admin/java/reference/com/google/firebase/cloud/FirestoreClient)
      * [ Python  ](/docs/reference/admin/python/firebase_admin.firestore)
      * [ Go  ](//godoc.org/cloud.google.com/go/firestore)
      * [ C#  ](//googleapis.github.io/google-cloud-dotnet/docs/Google.Cloud.Firestore/)
      * [ PHP  ](//googleapis.github.io/google-cloud-php/#/docs/cloud-firestore/latest/firestore/readme)
      * [ Ruby  ](//googleapis.github.io/google-cloud-ruby/docs/google-cloud-firestore/latest/Google/Firestore/V1beta1)
      * [ C++  ](/docs/reference/cpp/namespace/firebase/firestore)
      * [ Unity  ](/docs/reference/unity/namespace/firebase/firestore)
      * [ REST  ](/docs/firestore/reference/rest)
      * [ RPC  ](/docs/firestore/reference/rpc)

    * Samples 

      * [ iOS  ](/docs/firestore/client/samples-ios)
      * [ Android  ](/docs/firestore/client/samples-android)
      * [ Web  ](/docs/firestore/client/samples-web)

  * Realtime Database 

    * [ Introduction  ](/docs/database)
    * [ Choose a Database  ](/docs/database/rtdb-vs-firestore)
    * iOS+ 

      * [ Get Started  ](/docs/database/ios/start)
      * [ Structure Data  ](/docs/database/ios/structure-data)
      * [ Read and Write Data  ](/docs/database/ios/read-and-write)
      * [ Work with Lists of Data  ](/docs/database/ios/lists-of-data)
      * [ Enable Offline Capabilities  ](/docs/database/ios/offline-capabilities)

    * Android 

      * [ Get Started  ](/docs/database/android/start)
      * [ Structure Data  ](/docs/database/android/structure-data)
      * [ Read and Write Data  ](/docs/database/android/read-and-write)
      * [ Work with Lists of Data  ](/docs/database/android/lists-of-data)
      * [ Enable Offline Capabilities  ](/docs/database/android/offline-capabilities)

    * Web 

      * [ Get Started  ](/docs/database/web/start)
      * [ Structure Data  ](/docs/database/web/structure-data)
      * [ Read and Write Data  ](/docs/database/web/read-and-write)
      * [ Work with Lists of Data  ](/docs/database/web/lists-of-data)
      * [ Enable Offline Capabilities  ](/docs/database/web/offline-capabilities)

    * Flutter 

      * [ Get Started  ](/docs/database/flutter/start)
      * [ Structure Data  ](/docs/database/flutter/structure-data)
      * [ Read and Write Data  ](/docs/database/flutter/read-and-write)
      * [ Work with Lists of Data  ](/docs/database/flutter/lists-of-data)
      * [ Enable Offline Capabilities  ](/docs/database/flutter/offline-capabilities)

    * Admin 

      * [ Get Started  ](/docs/database/admin/start)
      * [ Structure Data  ](/docs/database/admin/structure-dat