Memulai Cloud Firestore

Web

1. Ikuti petunjuk untuk menambahkan Firebase ke aplikasi Web Anda.
2. Tambahkan library Firebase dan Cloud Firestore ke aplikasi Anda:

   <script src="https://www.gstatic.com/firebasejs/7.14.4/firebase-app.js"></script>
   <script src="https://www.gstatic.com/firebasejs/7.14.4/firebase-firestore.js"></script>

   Cloud Firestore SDK juga tersedia sebagai paket npm.

   npm install firebase@7.14.4 --save
   

   Anda harus meminta Firebase dan Cloud Firestore secara manual.

   const firebase = require("firebase");
   // Required for side-effects
   require("firebase/firestore");
   

iOS

1. Ikuti petunjuk untuk menambahkan Firebase ke aplikasi iOS Anda.
2. Tambahkan pod Cloud Firestore ke PodfileAnda

   pod 'Firebase/Firestore'
   
   # Optionally, include the Swift extensions if you're using Swift.
   pod 'FirebaseFirestoreSwift'
   

3. Simpan file dan jalankan pod install.

Java

1. Ikuti petunjuk untuk menambahkan Firebase ke aplikasi Android Anda.
2. Dalam file build.gradle level project, pastikan Anda memasukkan repositori Maven Google di bagian buildscript dan allprojects.
3. Tambahkan library Android Cloud Firestore ke file Gradle modul (level aplikasi) Anda (biasanya app/build.gradle):

   implementation 'com.google.firebase:firebase-firestore:21.4.3'

Kotlin+KTX

1. Ikuti petunjuk untuk menambahkan Firebase ke aplikasi Android Anda.
2. Dalam file build.gradle level project, pastikan Anda memasukkan repositori Maven Google di bagian buildscript dan allprojects.
3. Tambahkan library Android Cloud Firestore ke file Gradle modul (level aplikasi) Anda (biasanya app/build.gradle):

   implementation 'com.google.firebase:firebase-firestore-ktx:21.4.3'

Java

1. Tambahkan Firebase Admin SDK ke aplikasi Anda:
   • Menggunakan Gradle:

     compile 'com.google.firebase:firebase-admin:6.13.0'
     

   • Menggunakan Maven:

     <dependency>
       <groupId>com.google.firebase</groupId>
       <artifactId>firebase-admin</artifactId>
       <version>6.13.0</version>
     </dependency>
          

2. Ikuti petunjuk di bawah ini untuk melakukan inisialisasi pada Cloud Firestore dengan kredensial yang tepat di lingkungan Anda.

Python

1. Tambahkan Firebase Admin SDK ke aplikasi Python Anda:

   pip install --upgrade firebase-admin

2. Ikuti petunjuk di bawah ini untuk melakukan inisialisasi pada Cloud Firestore dengan kredensial yang tepat di lingkungan Anda.

C++

1. Ikuti petunjuk untuk menambahkan Firebase ke project C++ Anda.
2. Antarmuka C ++ untuk Android.
• Dependensi Gradle Tambahkan kode berikut ke file Gradle modul (level aplikasi) Anda (biasanya app/build.gradle):

          android.defaultConfig.externalNativeBuild.cmake {
            arguments "-DFIREBASE_CPP_SDK_DIR=$gradle.firebase_cpp_sdk_dir"
          }
  
          apply from: "$gradle.firebase_cpp_sdk_dir/Android/firebase_dependencies.gradle"
          firebaseCpp.dependencies {
            // earlier entries
            auth
            firestore
          }
          

• Dependensi biner. Demikian pula, cara yang direkomendasikan untuk mendapatkan dependensi biner adalah dengan menambahkan kode berikut ke file CMakeLists.txt Anda:

          add_subdirectory(${FIREBASE_CPP_SDK_DIR} bin/ EXCLUDE_FROM_ALL)
          set(firebase_libs firebase_auth firebase_firestore firebase_app)
          # Replace the target name below with the actual name of your target,
          # for example, "native-lib".
          target_link_libraries(${YOUR_TARGET_NAME_HERE} "${firebase_libs}")
          

3. Untuk menyiapkan integrasi desktop, baca bagian Menambahkan Firebase ke project C ++ Anda.

Unity

1. Ikuti petunjuk untuk menambahkan Firebase ke project Unity Anda.
2. Antarmuka Unity untuk Android.

Saat membuat aplikasi untuk Android, aktifkan ProGuard untuk menghindari batas Android DEX. Untuk melakukannya, di editor Unity:

1. Pilih File > Build Settings
2. Alihkan 'Platform' ke 'Android' dan klik 'Switch Platform'
3. Klik ‘Player Settings…’
4. Di UI Unity utama, di bawah 'Settings for Android', pilih 'Publishing Settings'
5. Di bagian 'Minify', ubah setelan Release dan Debug dari 'None' menjadi 'ProGuard'

Node.js

1. Tambahkan Firebase Admin SDK ke aplikasi Anda:

   npm install firebase-admin --save

2. Ikuti petunjuk di bawah ini untuk melakukan inisialisasi pada Cloud Firestore dengan kredensial yang tepat di lingkungan Anda.

Go

1. Tambahkan Firebase Admin SDK ke aplikasi Go Anda:

   go get firebase.google.com/go
   

2. Ikuti petunjuk di bawah ini untuk melakukan inisialisasi pada Cloud Firestore dengan kredensial yang tepat di lingkungan Anda.

PHP

1. Library klien server Cloud Firestore (Java, Node.js, Python, Go, PHP, C#, dan Ruby) menggunakan Kredensial Default Aplikasi Google untuk melakukan autentikasi.
   • Untuk melakukan autentikasi dari lingkungan development, atur agar variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS mengarah ke file kunci akun layanan JSON. Anda dapat membuat file kunci di halaman Kredensial Konsol API.

     export GOOGLE_APPLICATION_CREDENTIALS="path/to/your/keyfile.json"

   • Anda tidak perlu melakukan autentikasi jika menjalankan aplikasi pada App Engine atau Compute Engine di lingkungan produksi. Cukup gunakan project yang sama dengan yang Anda gunakan untuk Cloud Firestore. Atau, siapkan akun layanan.
2. Instal dan aktifkan ekstensi gRPC untuk PHP, yang akan Anda perlukan untuk library klien.
3. Tambahkan library PHP Cloud Firestore ke aplikasi Anda:

   composer require google/cloud-firestore

C#

1. Library klien server Cloud Firestore (Java, Node.js, Python, Go, PHP, C#, dan Ruby) menggunakan Kredensial Default Aplikasi Google untuk melakukan autentikasi.
   • Untuk melakukan autentikasi dari lingkungan development, atur agar variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS mengarah ke file kunci akun layanan JSON. Anda dapat membuat file kunci di halaman Kredensial Konsol API.

     export GOOGLE_APPLICATION_CREDENTIALS="path/to/your/keyfile.json"

   • Anda tidak perlu melakukan autentikasi jika menjalankan aplikasi pada App Engine atau Compute Engine di lingkungan produksi. Cukup gunakan project yang sama dengan yang Anda gunakan untuk Cloud Firestore. Atau, siapkan akun layanan.
2. Tambahkan library C# Cloud Firestore ke aplikasi Anda di file .csproj:

   <ItemGroup>
     <PackageReference Include="Google.Cloud.Firestore" Version="1.1.0-beta01" />
   </ItemGroup>

3. Tambahkan hal berikut ke file Program.cs Anda:

   using Google.Cloud.Firestore;

Ruby

1. Library klien server Cloud Firestore (Java, Node.js, Python, Go, PHP, C#, dan Ruby) menggunakan Kredensial Default Aplikasi Google untuk melakukan autentikasi.
   • Untuk melakukan autentikasi dari lingkungan development, atur agar variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS mengarah ke file kunci akun layanan JSON. Anda dapat membuat file kunci di halaman Kredensial Konsol API.

     export GOOGLE_APPLICATION_CREDENTIALS="path/to/your/keyfile.json"

   • Anda tidak perlu melakukan autentikasi jika menjalankan aplikasi pada App Engine atau Compute Engine di lingkungan produksi. Cukup gunakan project yang sama dengan yang Anda gunakan untuk Cloud Firestore. Atau, siapkan akun layanan.
2. Tambahkan library Ruby Cloud Firestore ke aplikasi Anda di Gemfile:

   gem "google-cloud-firestore"

3. Instal dependensi dari Gemfile menggunakan:

   bundle install

Web

// Initialize Cloud Firestore through Firebase
firebase.initializeApp({
  apiKey: '### FIREBASE API KEY ###',
  authDomain: '### FIREBASE AUTH DOMAIN ###',
  projectId: '### CLOUD FIRESTORE PROJECT ID ###'
});

var db = firebase.firestore();

Swift

import Firebase

FirebaseApp.configure()

let db = Firestore.firestore()
AppDelegate.swift

Objective-C

@import Firebase;

// Use Firebase library to configure APIs
[FIRApp configure];

FIRFirestore *defaultFirestore = [FIRFirestore firestore];
AppDelegate.m
  

Java

// Access a Cloud Firestore instance from your Activity
FirebaseFirestore db = FirebaseFirestore.getInstance();
DocSnippets.java

Kotlin+KTX

// Access a Cloud Firestore instance from your Activity
val db = Firebase.firestore
DocSnippets.kt

Java

import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.firestore.Firestore;

import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;

// Use the application default credentials
GoogleCredentials credentials = GoogleCredentials.getApplicationDefault();
FirebaseOptions options = new FirebaseOptions.Builder()
    .setCredentials(credentials)
    .setProjectId(projectId)
    .build();
FirebaseApp.initializeApp(options);

Firestore db = FirestoreClient.getFirestore();

import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.firestore.Firestore;

import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;

// Use a service account
InputStream serviceAccount = new FileInputStream("path/to/serviceAccount.json");
GoogleCredentials credentials = GoogleCredentials.fromStream(serviceAccount);
FirebaseOptions options = new FirebaseOptions.Builder()
    .setCredentials(credentials)
    .build();
FirebaseApp.initializeApp(options);

Firestore db = FirestoreClient.getFirestore();

Python

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore

# Use the application default credentials
cred = credentials.ApplicationDefault()
firebase_admin.initialize_app(cred, {
  'projectId': project_id,
})

db = firestore.client()

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore

# Use a service account
cred = credentials.Certificate('path/to/serviceAccount.json')
firebase_admin.initialize_app(cred)

db = firestore.client()

C++

using firebase::App;
using firebase::firestore::Firestore;
// Make sure this call happens some time before you call Firestore::GetInstance().
App::Create();
Firestore* db = Firestore::GetInstance();

Node.js

• Melakukan inisialisasi pada Cloud Functions

  const admin = require('firebase-admin');
  const admin = require('firebase-admin');
  admin.initializeApp();
  
  let db = admin.firestore();
  index.js
  

• Melakukan inisialisasi pada Google Cloud Platform

  const admin = require('firebase-admin');
  
  admin.initializeApp({
    credential: admin.credential.applicationDefault()
  });
  
  const db = admin.firestore();
  // ...
  index.js
  

• Melakukan inisialisasi pada server Anda sendiri

  Untuk menggunakan Firebase Admin SDK pada server Anda sendiri (atau lingkungan Node.js lainnya), gunakan akun layanan. Buka IAM & admin > Akun layanan di Cloud Platform Console. Buat kunci pribadi baru dan simpan file JSON. Lalu gunakan file tersebut untuk melakukan inisialisasi SDK:

  const admin = require('firebase-admin');
  
  let serviceAccount = require('./path/to/serviceAccountKey.json');
  
  admin.initializeApp({
    credential: admin.credential.cert(serviceAccount)
  });
  
  let db = admin.firestore();
  index.js
  

Go

import (
  "log"

  firebase "firebase.google.com/go"
  "google.golang.org/api/option"
)

// Use the application default credentials
ctx := context.Background()
conf := &firebase.Config{ProjectID: projectID}
app, err := firebase.NewApp(ctx, conf)
if err != nil {
  log.Fatalln(err)
}

client, err := app.Firestore(ctx)
if err != nil {
  log.Fatalln(err)
}
defer client.Close()

import (
  "log"

  firebase "firebase.google.com/go"
  "google.golang.org/api/option"
)

// Use a service account
ctx := context.Background()
sa := option.WithCredentialsFile("path/to/serviceAccount.json")
app, err := firebase.NewApp(ctx, nil, sa)
if err != nil {
  log.Fatalln(err)
}

client, err := app.Firestore(ctx)
if err != nil {
  log.Fatalln(err)
}
defer client.Close()

PHP

use Google\Cloud\Firestore\FirestoreClient;

/**
 * Initialize Cloud Firestore with default project ID.
 * ```
 * initialize();
 * ```
 */
function initialize()
{
    // Create the Cloud Firestore client
    $db = new FirestoreClient();
    printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
}
initialize.php

Unity

using Firebase.Firestore;
using Firebase.Extensions;
FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

C#

FirestoreDb db = FirestoreDb.Create(project);
Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);
Program.cs

Ruby

require "google/cloud/firestore"

firestore = Google::Cloud::Firestore.new project_id: project_id

puts "Created Cloud Firestore client with given project ID."
quickstart.rb

Web

db.collection("users").add({
    first: "Ada",
    last: "Lovelace",
    born: 1815
})
.then(function(docRef) {
    console.log("Document written with ID: ", docRef.id);
})
.catch(function(error) {
    console.error("Error adding document: ", error);
});
test.firestore.js

Swift

// Add a new document with a generated ID
var ref: DocumentReference? = nil
ref = db.collection("users").addDocument(data: [
    "first": "Ada",
    "last": "Lovelace",
    "born": 1815
]) { err in
    if let err = err {
        print("Error adding document: \(err)")
    } else {
        print("Document added with ID: \(ref!.documentID)")
    }
}
ViewController.swift

Objective-C

// Add a new document with a generated ID
__block FIRDocumentReference *ref =
    [[self.db collectionWithPath:@"users"] addDocumentWithData:@{
      @"first": @"Ada",
      @"last": @"Lovelace",
      @"born": @1815
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error adding document: %@", error);
      } else {
        NSLog(@"Document added with ID: %@", ref.documentID);
      }
    }];
ViewController.m
  

Java

// Create a new user with a first and last name
Map<String, Object> user = new HashMap<>();
user.put("first", "Ada");
user.put("last", "Lovelace");
user.put("born", 1815);

// Add a new document with a generated ID
db.collection("users")
        .add(user)
        .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
            @Override
            public void onSuccess(DocumentReference documentReference) {
                Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error adding document", e);
            }
        });
DocSnippets.java

Kotlin+KTX

// Create a new user with a first and last name
val user = hashMapOf(
        "first" to "Ada",
        "last" to "Lovelace",
        "born" to 1815
)

// Add a new document with a generated ID
db.collection("users")
    .add(user)
    .addOnSuccessListener { documentReference ->
        Log.d(TAG, "DocumentSnapshot added with ID: ${documentReference.id}")
    }
    .addOnFailureListener { e ->
        Log.w(TAG, "Error adding document", e)
    }
DocSnippets.kt

Java

DocumentReference docRef = db.collection("users").document("alovelace");
// Add document data  with id "alovelace" using a hashmap
Map<String, Object> data = new HashMap<>();
data.put("first", "Ada");
data.put("last", "Lovelace");
data.put("born", 1815);
//asynchronously write data
ApiFuture<WriteResult> result = docRef.set(data);
// ...
// result.get() blocks on response
System.out.println("Update time : " + result.get().getUpdateTime());
Quickstart.java
  

Python

doc_ref = db.collection(u'users').document(u'alovelace')
doc_ref.set({
    u'first': u'Ada',
    u'last': u'Lovelace',
    u'born': 1815
})
snippets.py
  

C++

// Add a new document with a generated ID
Future<DocumentReference> user_ref =
    db->Collection("users").Add({{"first", FieldValue::FromString("Ada")},
                                 {"last", FieldValue::FromString("Lovelace")},
                                 {"born", FieldValue::FromInteger(1815)}});

user_ref.OnCompletion([](const Future<DocumentReference>& future) {
  if (future.error() == Error::Ok) {
    std::cout << "DocumentSnapshot added with ID: " << future.result()->id()
              << '\n';
  } else {
    std::cout << "Error adding document: " << future.error_message() << '\n';
  }
});
snippets.cpp
  

Node.js

let docRef = db.collection('users').doc('alovelace');

let setAda = docRef.set({
  first: 'Ada',
  last: 'Lovelace',
  born: 1815
});
index.js
  

Go

_, _, err := client.Collection("users").Add(ctx, map[string]interface{}{
	"first": "Ada",
	"last":  "Lovelace",
	"born":  1815,
})
if err != nil {
	log.Fatalf("Failed adding alovelace: %v", err)
}
main.go
  

PHP

$docRef = $db->collection('users')->document('lovelace');
$docRef->set([
    'first' => 'Ada',
    'last' => 'Lovelace',
    'born' => 1815
]);
printf('Added data to the lovelace document in the users collection.' . PHP_EOL);
add_data.php
  

Unity

DocumentReference docRef = db.Collection("users").Document("alovelace");
Dictionary<string, object> user = new Dictionary<string, object>
{
	{ "First", "Ada" },
	{ "Last", "Lovelace" },
	{ "Born", 1815 },
};
docRef.SetAsync(user).ContinueWithOnMainThread(task => {
	Debug.Log("Added data to the alovelace document in the users collection.");
});
  

C#

DocumentReference docRef = db.Collection("users").Document("alovelace");
Dictionary<string, object> user = new Dictionary<string, object>
{
    { "First", "Ada" },
    { "Last", "Lovelace" },
    { "Born", 1815 }
};
await docRef.SetAsync(user);
Program.cs
  

Ruby

doc_ref = firestore.doc "users/alovelace"

doc_ref.set(
  first: "Ada",
  last:  "Lovelace",
  born:  1815
)

puts "Added data to the alovelace document in the users collection."
quickstart.rb
  

Web

// Add a second document with a generated ID.
db.collection("users").add({
    first: "Alan",
    middle: "Mathison",
    last: "Turing",
    born: 1912
})
.then(function(docRef) {
    console.log("Document written with ID: ", docRef.id);
})
.catch(function(error) {
    console.error("Error adding document: ", error);
});
test.firestore.js

Swift

// Add a second document with a generated ID.
ref = db.collection("users").addDocument(data: [
    "first": "Alan",
    "middle": "Mathison",
    "last": "Turing",
    "born": 1912
]) { err in
    if let err = err {
        print("Error adding document: \(err)")
    } else {
        print("Document added with ID: \(ref!.documentID)")
    }
}
ViewController.swift

Objective-C

// Add a second document with a generated ID.
__block FIRDocumentReference *ref =
    [[self.db collectionWithPath:@"users"] addDocumentWithData:@{
      @"first": @"Alan",
      @"middle": @"Mathison",
      @"last": @"Turing",
      @"born": @1912
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error adding document: %@", error);
      } else {
        NSLog(@"Document added with ID: %@", ref.documentID);
      }
    }];
ViewController.m
  

Java

// Create a new user with a first, middle, and last name
Map<String, Object> user = new HashMap<>();
user.put("first", "Alan");
user.put("middle", "Mathison");
user.put("last", "Turing");
user.put("born", 1912);

// Add a new document with a generated ID
db.collection("users")
        .add(user)
        .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
            @Override
            public void onSuccess(DocumentReference documentReference) {
                Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error adding document", e);
            }
        });
DocSnippets.java

Kotlin+KTX

// Create a new user with a first, middle, and last name
val user = hashMapOf(
        "first" to "Alan",
        "middle" to "Mathison",
        "last" to "Turing",
        "born" to 1912
)

// Add a new document with a generated ID
db.collection("users")
    .add(user)
    .addOnSuccessListener { documentReference ->
        Log.d(TAG, "DocumentSnapshot added with ID: ${documentReference.id}")
    }
    .addOnFailureListener { e ->
        Log.w(TAG, "Error adding document", e)
    }
DocSnippets.kt

Java

DocumentReference docRef = db.collection("users").document("aturing");
// Add document data with an additional field ("middle")
Map<String, Object> data = new HashMap<>();
data.put("first", "Alan");
data.put("middle", "Mathison");
data.put("last", "Turing");
data.put("born", 1912);

ApiFuture<WriteResult> result = docRef.set(data);
System.out.println("Update time : " + result.get().getUpdateTime());
Quickstart.java
  

Python

doc_ref = db.collection(u'users').document(u'aturing')
doc_ref.set({
    u'first': u'Alan',
    u'middle': u'Mathison',
    u'last': u'Turing',
    u'born': 1912
})
snippets.py
  

C++

db->Collection("users")
    .Add({{"first", FieldValue::FromString("Alan")},
          {"middle", FieldValue::FromString("Mathison")},
          {"last", FieldValue::FromString("Turing")},
          {"born", FieldValue::FromInteger(1912)}})
    .OnCompletion([](const Future<DocumentReference>& future) {
      if (future.error() == Error::Ok) {
        std::cout << "DocumentSnapshot added with ID: "
                  << future.result()->id() << '\n';
      } else {
        std::cout << "Error adding document: " << future.error_message()
                  << '\n';
      }
    });
snippets.cpp
  

Node.js

let aTuringRef = db.collection('users').doc('aturing');

let setAlan = aTuringRef.set({
  'first': 'Alan',
  'middle': 'Mathison',
  'last': 'Turing',
  'born': 1912
});
index.js
  

Go

_, _, err = client.Collection("users").Add(ctx, map[string]interface{}{
	"first":  "Alan",
	"middle": "Mathison",
	"last":   "Turing",
	"born":   1912,
})
if err != nil {
	log.Fatalf("Failed adding aturing: %v", err)
}
main.go
  

PHP

$docRef = $db->collection('users')->document('aturing');
$docRef->set([
    'first' => 'Alan',
    'middle' => 'Mathison',
    'last' => 'Turing',
    'born' => 1912
]);
printf('Added data to the aturing document in the users collection.' . PHP_EOL);
add_data.php
  

Unity

DocumentReference docRef = db.Collection("users").Document("aturing");
Dictionary<string, object> user = new Dictionary<string, object>
{
	{ "First", "Alan" },
	{ "Middle", "Mathison" },
	{ "Last", "Turing" },
	{ "Born", 1912 }
};
docRef.SetAsync(user).ContinueWithOnMainThread(task => {
	Debug.Log("Added data to the aturing document in the users collection.");
});
  

C#

DocumentReference docRef = db.Collection("users").Document("aturing");
Dictionary<string, object> user = new Dictionary<string, object>
{
    { "First", "Alan" },
    { "Middle", "Mathison" },
    { "Last", "Turing" },
    { "Born", 1912 }
};
await docRef.SetAsync(user);
Program.cs
  

Ruby

doc_ref = firestore.doc "users/aturing"

doc_ref.set(
  first:  "Alan",
  middle: "Mathison",
  last:   "Turing",
  born:   1912
)

puts "Added data to the aturing document in the users collection."
quickstart.rb
  

Web

db.collection("users").get().then((querySnapshot) => {
    querySnapshot.forEach((doc) => {
        console.log(`${doc.id} => ${doc.data()}`);
    });
});
test.firestore.js

Swift

db.collection("users").getDocuments() { (querySnapshot, err) in
    if let err = err {
        print("Error getting documents: \(err)")
    } else {
        for document in querySnapshot!.documents {
            print("\(document.documentID) => \(document.data())")
        }
    }
}
ViewController.swift

Objective-C

[[self.db collectionWithPath:@"users"]
    getDocumentsWithCompletion:^(FIRQuerySnapshot * _Nullable snapshot,
                                 NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error getting documents: %@", error);
      } else {
        for (FIRDocumentSnapshot *document in snapshot.documents) {
          NSLog(@"%@ => %@", document.documentID, document.data);
        }
      }
    }];
ViewController.m
  

Java

db.collection("users")
        .get()
        .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
            @Override
            public void onComplete(@NonNull Task<QuerySnapshot> task) {
                if (task.isSuccessful()) {
                    for (QueryDocumentSnapshot document : task.getResult()) {
                        Log.d(TAG, document.getId() + " => " + document.getData());
                    }
                } else {
                    Log.w(TAG, "Error getting documents.", task.getException());
                }
            }
        });
DocSnippets.java

Kotlin+KTX

db.collection("users")
        .get()
        .addOnSuccessListener { result ->
            for (document in result) {
                Log.d(TAG, "${document.id} => ${document.data}")
            }
        }
        .addOnFailureListener { exception ->
            Log.w(TAG, "Error getting documents.", exception)
        }
DocSnippets.kt

Java

// asynchronously retrieve all users
ApiFuture<QuerySnapshot> query = db.collection("users").get();
// ...
// query.get() blocks on response
QuerySnapshot querySnapshot = query.get();
List<QueryDocumentSnapshot> documents = querySnapshot.getDocuments();
for (QueryDocumentSnapshot document : documents) {
  System.out.println("User: " + document.getId());
  System.out.println("First: " + document.getString("first"));
  if (document.contains("middle")) {
    System.out.println("Middle: " + document.getString("middle"));
  }
  System.out.println("Last: " + document.getString("last"));
  System.out.println("Born: " + document.getLong("born"));
}
Quickstart.java
  

Python

users_ref = db.collection(u'users')
docs = users_ref.stream()

for doc in docs:
    print(u'{} => {}'.format(doc.id, doc.to_dict()))
snippets.py
  

C++

Future<QuerySnapshot> users = db->Collection("users").Get();
users.OnCompletion([](const Future<QuerySnapshot>& future) {
  if (future.error() == Error::Ok) {
    for (const DocumentSnapshot& document : future.result()->documents()) {
      std::cout << document << '\n';
    }
  } else {
    std::cout << "Error getting documents: " << future.error_message()
              << '\n';
  }
});
snippets.cpp
  

Node.js

db.collection('users').get()
  .then((snapshot) => {
    snapshot.forEach((doc) => {
      console.log(doc.id, '=>', doc.data());
    });
  })
  .catch((err) => {
    console.log('Error getting documents', err);
  });
index.js
  

Go

iter := client.Collection("users").Documents(ctx)
for {
	doc, err := iter.Next()
	if err == iterator.Done {
		break
	}
	if err != nil {
		log.Fatalf("Failed to iterate: %v", err)
	}
	fmt.Println(doc.Data())
}
main.go
  

PHP

$usersRef = $db->collection('users');
$snapshot = $usersRef->documents();
foreach ($snapshot as $user) {
    printf('User: %s' . PHP_EOL, $user->id());
    printf('First: %s' . PHP_EOL, $user['first']);
    if (!empty($user['middle'])) {
        printf('Middle: %s' . PHP_EOL, $user['middle']);
    }
    printf('Last: %s' . PHP_EOL, $user['last']);
    printf('Born: %d' . PHP_EOL, $user['born']);
    printf(PHP_EOL);
}
printf('Retrieved and printed out all documents from the users collection.' . PHP_EOL);
get_all.php
  

Unity

CollectionReference usersRef = db.Collection("users");
usersRef.GetSnapshotAsync().ContinueWithOnMainThread(task =>
{
  QuerySnapshot snapshot = task.Result;
  foreach (DocumentSnapshot document in snapshot.Documents)
  {
    Debug.Log(String.Format("User: {0}", document.Id));
    Dictionary<string, object> documentDictionary = document.ToDictionary();
    Debug.Log(String.Format("First: {0}", documentDictionary["First"]));
    if (documentDictionary.ContainsKey("Middle"))
    {
      Debug.Log(String.Format("Middle: {0}", documentDictionary["Middle"]));
    }

    Debug.Log(String.Format("Last: {0}", documentDictionary["Last"]));
    Debug.Log(String.Format("Born: {0}", documentDictionary["Born"]));
  }

  Debug.Log("Read all data from the users collection.");
});
  

C#

CollectionReference usersRef = db.Collection("users");
QuerySnapshot snapshot = await usersRef.GetSnapshotAsync();
foreach (DocumentSnapshot document in snapshot.Documents)
{
    Console.WriteLine("User: {0}", document.Id);
    Dictionary<string, object> documentDictionary = document.ToDictionary();
    Console.WriteLine("First: {0}", documentDictionary["First"]);
    if (documentDictionary.ContainsKey("Middle"))
    {
        Console.WriteLine("Middle: {0}", documentDictionary["Middle"]);
    }
    Console.WriteLine("Last: {0}", documentDictionary["Last"]);
    Console.WriteLine("Born: {0}", documentDictionary["Born"]);
    Console.WriteLine();
}
Program.cs
  

Ruby

users_ref = firestore.col "users"
users_ref.get do |user|
  puts "#{user.document_id} data: #{user.data}."
end
quickstart.rb
  

Auth diperlukan

// Allow read/write access on all documents to any user signed in to the application
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if request.auth.uid != null;
    }
  }
}

Mode terkunci

// Deny read/write access to all users under any conditions
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if false;
    }
  }
}

Mode uji

// Allow read/write access to all users under any conditions
// Warning: **NEVER** use this rule set in production; it allows
// anyone to overwrite your entire database.
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

Web

iOS

Android