This package is the way to use firebase features on all platforms without code changes. Its developed by using these packages(For desktop part):
firebase_dart & firedart are both great packages that will suffice all your needs for firebase. On non-windows patforms it is more desirable to use original package with minimum risk of bugs and problems.
This package will deal with channelizing task of these packages for you. It will automatically switch between packages and allow you to run "Firedart" on Windows and "cloud_firestore" on any other platform.
New classes and functions have been designed carefully so that you dont have to modify your old codes and migrate your project very easily.
Like everyone else, I'm looking forward to the end of the flutterFire desktop process. I hope this library can help a little bit until then
Features
Currently supports the following firebase services:
- Authentication
- Cloud firestore
- Cloud storage
Examples
All examples in example/lib/functions.dart
Usage
The documentation link will be added in future
You must add the library as a dependency to your project.
dependencies:
firebase_for_all: ^latest
If you setup your Firebase via FlutterFire CLI then InitializeApp function will throw an error. Do this to avoid this error:
dependency_overrides:
firebase_core_platform_interface: 4.5.1
Then run flutter packages get
Getting started
Initiliaze firebase and choose the features you want. There are two ways to configure firebase for your project.
- Old school way: configure everything by hand
- New flutterfire way by using firebase CLI
Old school way:
await FirebaseCoreForAll.initializeApp(
options: FirebaseOptions(
apiKey: 'XXXXXXXXXXXXXXXXXXXXXX',
appId: 'XXXXXXXXXXXXXXXXXXXXXX',
messagingSenderId: 'XXXXXXXXXXX',
projectId: 'XXXXXXXXXXXXXX',
authDomain: 'XXXXXXXXXXXXX.firebaseapp.com',
storageBucket: 'XXXXXXXXXXXXX.appspot.com',
),
firestore: true,
auth: true,
storage: true);
New flutterfire way:
await FirebaseCoreForAll.initializeApp(
options: DefaultFirebaseOptions.currentPlatform,
firestore: true,
auth: true,
storage: true);
Cloud Storage
get FirebaseAuth.instance with "FirebaseAuthForAll.instance"
await FirebaseAuthForAll.instance.createUserWithEmailAndPassword(email: "test@hotmail.com", password: "password123");
Cloud Firestore
Document & Query Snapshots
QuerySnapshot
FirestoreForAll.instance
.collection('users')
.get()
.then((QuerySnapshotForAll querySnapshot) {
querySnapshot.docs.forEach((doc) {
print(doc["first_name"]);
});
});
DocumentSnapshot
FirestoreForAll.instance
.collection('users')
.doc(userId)
.get()
.then((DocumentSnapshotForAll documentSnapshot) {
if (documentSnapshot.exists) {
print('Document data: ${documentSnapshot.data()}');
} else {
print('Document does not exist on the database');
}
});
Querying
Filtering
Warning: "isNotEqualTo" and "whereNotIn" dont work on desktop(except MACOS). You should use it with this in mind
FirestoreForAll.instance
.collection('users')
.where('age', isGreaterThan: 10)
.get()
.then(...);
Ordering
FirestoreForAll.instance
.collection('users')
.orderBy('age', descending: true)
.get()
.then(...);
Limiting
Warning: "limitToLast" doesnt work on desktop(except MACOS). You should use it with this in mind
FirestoreForAll.instance
.collection('users')
.limit(2)
.get()
.then(...);
Start & End Cursors
Warning: Unfortunately this feature doesnt work on desktop(except MACOS)
FirestoreForAll.instance
.collection('users')
.orderBy('age')
.orderBy('company')
.startAt([4, 'Alphabet Inc.'])
.endAt([21, 'Google LLC'])
.get()
.then(...);
Adding&Updating&Deleting Documents
ColRef users = FirestoreForAll.instance.collection('users');
users
.add({
'full_name': fullName, // John Doe
'company': company, // Stokes and Sons
'age': age // 42
})
.then((value) => print("User Added"))
.catchError((error) => print("Failed to add user: $error"));
users
.doc("12345")
.set({
'full_name': fullName, // John Doe
'company': company, // Stokes and Sons
'age': age // 42
})
.then((value) => print("User Added"))
.catchError((error) => print("Failed to add user: $error"));
users
.doc('ABC123')
.update({'company': 'Stokes and Sons'})
.then((value) => print("User Updated"))
.catchError((error) => print("Failed to update user: $error"));
users
.doc('ABC123')
.delete()
.then((value) => print("User Deleted"))
.catchError((error) => print("Failed to delete user: $error"));
Realtime changes
Listening collection
CollectionSnapshots collectionSnapshots = FirestoreForAll.instance.collection('users').snapshots();
collectionSnapshots.listen(
(snapshot) {},
onDone: () {},
onError: (e, stackTrace) {},
);
Warning: StreamBuilder doesnt work for this one. Use this instead:
CollectionBuilder(
stream: FirestoreForAll.instance.collection("users").snapshots(),
builder: (BuildContext context,
AsyncSnapshot<QuerySnapshotForAll> snapshot) {
if (snapshot.hasError) {
return Text('Something went wrong');
}
if (snapshot.connectionState == ConnectionState.waiting) {
return Text("Loading");
}
return ListView(
children:
snapshot.data!.docs.map((DocumentSnapshotForAll document) {
Map<String, dynamic> data =
document.data() as Map<String, dynamic>;
return ListTile(
title: Text(data['name']),
subtitle: Text(data['surname']),
);
}).toList(),
);
},
)
Listening document
DocumentSnapshots documentSnapshots=FirestoreForAll.instance.collection('users').doc('ABC123').snapshots();
documentSnapshots.listen(
(snapshot) {},
onDone: () {},
onError: (e, stackTrace) {},
);
Warning: StreamBuilder doesnt work for this one. Use this instead:
DocumentBuilder(
stream: FirestoreForAll.instance
.collection("users")
.doc('ABC123')
.snapshots(),
builder: (BuildContext context,
AsyncSnapshot<DocumentSnapshotForAll> snapshot) {
if (snapshot.hasError) {
return Text('Something went wrong');
}
if (snapshot.connectionState == ConnectionState.waiting) {
return Text("Loading");
}
return ListTile(
title: Text(snapshot.data!['name']),
subtitle: Text(snapshot.data!['surname']),
);
},
)
Typing CollectionReference and DocumentReference
The only thing that has changed here is "User.fromJson(snapshot.map!)" instead of "User.fromJson(snapshot.data()!)"
final moviesRef = FirestoreForAll.instance.collection('movies').withConverter<User>(
fromFirestore: (snapshot, _) => User.fromJson(snapshot.map!),
toFirestore: (movie, _) => movie.toJson(),
);
// Obtain 31 aged users
List<DocumentSnapshotForAll<User>> users = await userRef
.where('age', isEqualTo: 31)
.get()
.then((snapshot) => snapshot.docs);
// Add a user
await userRef.add(
User(
name: 'Chris',
surname: 'Doe',
age: 20
),
);
// Get a user with the id 42
User user = await userRef.doc('42').get().then((snapshot) => snapshot.data()!);
Cloud Storage
Upload Files
Upload from a file
final storageRef = FirebaseStorageForAll.instance.ref();
final mountainsRef = storageRef.child("mountains.jpg");
Directory appDocDir = await getApplicationDocumentsDirectory();
String filePath = '${appDocDir.absolute}/file-to-upload.png';
File file = File(filePath);
UploadTaskForAll task= mountainsRef.putFile(file);
Upload from a String
String dataUrl = 'data:text/plain;base64,SGVsbG8sIFdvcmxkIQ==';
UploadTaskForAll task= mountainsRef.putString(dataUrl, format: PutStringFormat.dataUrl);
Uploading raw data
UploadTaskForAll task= mountainsRef.putData(file.readAsBytesSync());
Get Download Url
await mountainsRef.getDownloadURL();
Manage Uploads
File file = File(filePath);
mountainsRef.putFile(file).snapshotEvents.listen((taskSnapshot) {
switch (taskSnapshot.state) {
case TaskState.running:
// ...
break;
case TaskState.paused:
// ...
break;
case TaskState.success:
// ...
break;
case TaskState.canceled:
// ...
break;
case TaskState.error:
// ...
break;
}
});
Download Files
Download in memory
final storageRef = FirebaseStorageForAll.instance.ref();
final islandRef = storageRef.child("images/island.jpg");
const oneMegabyte = 1024 * 1024;
final Uint8List? data = await islandRef.getData(oneMegabyte);
Download to a local file
final islandRef = storageRef.child("images/island.jpg");
final appDocDir = await getApplicationDocumentsDirectory();
final filePath = "${appDocDir.absolute}/images/island.jpg";
final file = File(filePath);
DownloadTaskForAll downloadTask = await islandRef.writeToFile(file);
Manage Downloads
downloadTask.snapshotEvents.listen((taskSnapshot) {
switch (taskSnapshot.state) {
case TaskState.running:
// TODO: Handle this case.
break;
case TaskState.paused:
// TODO: Handle this case.
break;
case TaskState.success:
// TODO: Handle this case.
break;
case TaskState.canceled:
// TODO: Handle this case.
break;
case TaskState.error:
// TODO: Handle this case.
break;
}
});
Delete File
final desertRef = storageRef.child("images/desert.jpg");
await desertRef.delete();
List all files
final storageRef = FirebaseStorage.instance.ref().child("files/uid");
final listResult = await storageRef.listAll();
for (var prefix in listResult.prefixes) {
// The prefixes under storageRef.
// You can call listAll() recursively on them.
}
for (var item in listResult.items) {
// The items under storageRef.
}
New Features
StorageFile
class StorageFile{
String cloudPath;
String fileName;
StorageRef reference;
String type,extension;
List<String> relatedDirs;
int size;
}
StorageDirectory
class StorageDirectory{
String cloudPath;
String dirName;
StorageRef reference;
List<String> relatedDirs;
}
New Function - getFiles()
This function is to get information of every files inside reference path
List<StorageFile> files = await storageRef.getFiles();
New Function - getSize()
This function is to get the file size
final desertRef = FirebaseStorageForAll.instance.ref().child("images/desert.jpg");
int size = await desertRef.getSize();
New Function - getDirectories()
This function is to get information of every directories inside reference path
List<StorageDirectory> files = await storageRef.getDirectories();
New Function - getDirSize()
This function is to get the file size
final storageRef = FirebaseStorageForAll.instance.ref().child("files/uid");
int size = await storageRef.getDirSize();