Flutter firestore future list currentUserUID). Oct 13, 2019 · flutter / flutter Public Notifications You must be signed in to change notification settings Fork 29. Aggregation queries rely on the existing index CollectionReference documents = (await Firestore. May 12, 2021 · To access the documents within a QuerySnapshot, call the docs property, which returns a List containing DocumentSnapshot classes. With codelabs, YouTube videos, detailed docs, and more, find everything you need to get started with Flutter or continue your learning journey. May 22, 2018 · Reading through cloud_firestore 's documentation you can see that a Stream from a Query can be obtained via snapshots(). This is Nibesh from Khadka's Coding Lounge. Jun 22, 2018 · 12 collectionSnapshot. How to Paginate Lists from Firestore Now that we can batch update todos, let’s write a function to paginate lists of todos from Firestore. Oct 28, 2025 · Ready to build beautiful, multiplatform apps from a single codebase? Choose from the following two options to get started setting up your Flutter development environment. It's not about teaching you how to program, it's about teaching you how Flutter works. Aug 25, 2022 · I need to get list of collection like datalist = ["2009" , "2010"] I can use this code to print what inside the 2009 , but that not i want final _fireStore = FirebaseFirestore. The article was created using Flutter Channel stable, 2. builder? See full list on dev. 1. Here is my data structure: and here is my code for the page so Oct 6, 2020 · I need to use my list from Firestore, but I'am stuck how to convert my Future list which I get from Firestore to list of strings: Future<List> getListOfProducts() async { Mar 11, 2023 · Nothing await s the call to getData(), so b is a Future. Mar 4, 2022 · I am populating a list of orders from firestore database in flutter. A guide to adding data to Cloud Firestore, including how to set, add, and update documents. 6k Star 174k May 28, 2020 · I'm creating a project with flutter and firestore. Is there a better way of doing this? Feels The following list summarizes Cloud Firestore query limitations: Cloud Firestore provides support for logical OR queries through the or, in, and array-contains-any operators. arrayUnion() but it results in null being stored in document. Oct 28, 2025 · The instructions on this page are configured to cover installing Flutter on a Windows device. This seems like a common problem, which I tried to fix with late Future<List<FilingData>> filingList; in the declarations. How can I return this information? Edit So after discussing this with Peter below I have tried to work through an adjusted approach but it seems horrifically messy. To finish, this type can provide you with data from the DocumentSnapshots, including the ID I set up Firestore in my project. Now I want to get this collection in my Flutter application s The StreamBuilder widget is used in many kinds of Flutter applications, especially chat applications, social networks, real-time content updates, etc. 0. Sep 26, 2025 · 📦 Type-safe Operations Turbo Firestore API ensures type safety throughout your Firestore interactions, providing a seamless and error-free development experience. where ('companyId', isEqualTo: sPData. Kindly help. . instance; 1 day ago · Flutter: How to Fix 'Uses or Overrides a Deprecated API' Error with Firebase Auth, Firestore & Resolve Dex 64K Method Limit Nov 13, 2025 · A guide to working with lists of data in the Firebase Realtime Database for your Flutter app, including how to append, sort, and filter data, and how to listen for changes to the list. I created new collection named categories. In this article, we will go over 2 complete examples of implementing StreamBuilder: the first example is a real-time clock app, and the second one is a demo chat app. I suspect the issue may be Firestore provides out of the box support for offline capabilities. Jun 13, 2019 · It's not exactly clear what your Cloud Firestore schema looks like, but this looks more likely to return you the correct list of dynamics. Apr 4, 2020 · In this guide, we will understand what is cloud firestore which is another database from firebase, read, write data and use queries with firestore in flutter. We’ll cover setting up Firestore, creating a data model, and developing functions to fetch and display products in a Flutter app. You have to make a new query using the subcollection name to get subcollection data. companyId) . Dec 30, 2019 · i want to read data from firestore in a listtile i dont want to use streambuilder i want to access the documents field individually i try this but not working class ProductList extends StatelessW FlutterFire UI for Firestore provides a convenient way to implement infinite scrolling using the Firestore database with the FirestoreListView widget. We’ll cover all the essential CRUD operations (Create, Read, Update, Delete) and ensure that the code is well-structured, maintainable, and type-safe. Widgets, examples, updates, and API docs to help you write your first Flutter app. collection('Stores'). document ('567890'). Here my codes: When I am using this I can't get any data from Firestore Fu Jun 11, 2020 · Magic of Flutter, Provider, and Firestore Hello everyone today we will be learning flutter with firestore as a backend with Provider package in easy steps. May 30, 2020 · I have a firestore stream in flutter that I would instead like to be a future so that I can do pagination of requests. I found FutureBuilder May 28, 2021 · In the last update of cloud_firestore, I get an error when I run the app with the old code. Nov 21, 2022 · I think the await function is so lengthy that flutter simply returns the empty list I declared in the function. Ideal for developers looking to enhance their app’s data handling capabilities with Firestore’s real-time database features. this is because of all the different data you might request from the database. In Lecture 9 of our Flutter Mobile App Development series, we dive into integrating Cloud Firestore for real-time database operations. Jul 19, 2023 · In this blog, we will explore how to use Firebase Firestore in Flutter to perform CRUD (Create, Read, Update, and Delete) operations, as well as other essential functionalities it offers. Jan 5, 2021 · List<String> groupIds = ['a1', 'b1', 'c1']; I want to store it in a Firestore document. Dec 9, 2018 · Just started using Firestore and Flutter and trying to get my document items from Firestore into a ListView and running into errors. builder. To get the Flutter SDK, see Install. ) When you're stuck with FutureBuilder it's sometimes useful to revert temporarily to a stateful Jun 25, 2019 · List<Map> _myJson = [{"id": 0, "name": "<New>"},{"id": 1, "name": "Test Practice"}]; Future<List<Map>> getData() async { http. Both widgets help you deal with asynchronous data, but knowing when to use which can make your apps more efficient and easier to build. here is how it's done Dec 11, 2019 · I am trying to map a DocumentSnap from Firebase to a Json Class in Flutter. Compared to executing a full query and calculating the aggregation in your app, aggregation queries save on both billed document reads and bytes transferred. decode(response. class SearchService { List<Future Sep 16, 2021 · Flutter-Firestore transform Stream<List<DocumentSnapshot<Map<String, dynamic>>>> into List<MyClass> Asked 3 years, 6 months ago Modified 3 years, 6 months ago Viewed 2k times Feb 27, 2018 · I was playing around with Firestore and Flutter and tried to extract a single doument value as a string from the Firestore database. Retrieve only the document (s Feb 24, 2025 · Master Flutter FutureBuilder for efficient UI development. View the latest updates, ask questions, open issues, and vote on proposals. ill list a few examples and how to solve/approach them in your code. Oct 30, 2025 · Learn the fundamentals This is an opinionated set of documentation for the new Flutter developer. Create a default Cloud Storage bucket From the navigation pane of the Firebase console, select Storage, then click Get started. It is a Home Automation project. 168. Sep 1, 2024 · In this article, I’ll walk you through implementing infinite pagination with real-time updates using Firestore in a Flutter app. In this collection I created three documents with uniq id. When reading and writing data, Firestore uses a local database which automatically synchronizes with the server. In this article, we’ll dive deep into how FutureBuilder works, provide a detailed example, and share advanced tips for leveraging its full potential. But subcollection data are not included in document snapshots because Firestore queries are shallow. Firestore. This is the main theme of today's blog. In this article, I guide you through the setup steps for Cloud Firestore and show you how to use Firebase Cloud Firestore with a Flutter app. Find my code below: import 'package:flutter/ Jun 16, 2025 · Learn how to integrate Firebase services into a Flutter app (a Photo Sharer), focusing on Firebase Authentication, Cloud Firestore, and Firebase Storage. ListView Widget ListView is a scrollable list Aug 26, 2019 · I'm trying to get all the documents inside a determined collection from my firestore and after that, I want to set them in a list of documents which each position of the list represents a document. Response response = await http. Aug 28, 2023 · 🔥 Welcome to Part 3 of our comprehensive Flutter To-Do List App Tutorial series, where we're delving into the exciting world of Firestore integration! In this episode, we're taking your app's Prerequisites Install and initialize the Firebase SDKs for Flutter if you haven't already done so. I was expecting the output that that the print statement inside the function returns. Now I need that to be a double because I have to provide a double to the used Widget. Getting data Get a single document Future<DocumentSnapshot> car = database. How can I convert a Stream<QuerySnapshot<Map<String, dynamic>>> to a List? Learn how to seamlessly convert your `Future List ` from Firestore to `List String ` in Flutter Firebase applications, enhancing your app's data handling and This is my search code. In today’s tutorial, I’m going to show you how to use Firebase’s Cloud Firestore database within your Flutter app. With Firebase handling real-time data storage and Excel export functionality built in, users have the flexibility to download, analyze, and share their data whenever needed. My be something like this: I am a little stuck in my project to learn more about flutter and hope you can help me out or give me some advice for some lecture :) I have two collections in my firestore db - one user and one gr Sep 13, 2022 · I need a list of document ID’s from a collection, so I can use it in a DropdownButton, which will select the specific document. then or . The function below gets some data from my firebase database, but the problem is that it takes too long to get the data. Future<List> getNewsOnSearchBar() async { final String _collection = 'news'; final Firestore _fireStore = Firestore. <---- now what? There is no getCollections, there is no listCollections. Oct 28, 2025 · Adaptive Apps in Flutter Learn how to build a Flutter app that adapts to the platform that it's running on, be that Android, iOS, the web, Windows, macOS, or Linux. At a minimum the widget accepts a Firestore query and an item builder. I am using this code for get Card from firestore. Jul 6, 2023 · To perform CRUD operations using the BLoC pattern with Firebase Firestore in Flutter, you will need to follow a few steps. Say you'd only like to display Players with Rank 1 in your List. Dec 28, 2024 · This tutorial covers the basics of Flutter and Firebase Firestore, as well as advanced features such as user authentication and data validation. Flutter transforms the entire app development process. Learn to handle async data & build complex, responsive interfaces. How can I sort the list to show paid items o Oct 28, 2025 · How to use use Firebase Cloud Firestore to implement multiplayer in your game. If you'd like to follow the instructions for a different OS, please select one of the following. toString()); return json. Prerequisites Add the following packages to yo Dec 14, 2022 · I have a flutter app running the following query: Future<QuerySnapshot<Object?>> getPendingDiscoveryChats ( String userId, DocumentSnapshot? lastDocument) async { QuerySnapshot May 5, 2020 · 0 I have been struggling for hours now to retrieve data from firestore as a list so I can show them in a search bar suggestion. How can I do that. get(' http://192. This below function will retrieve data from firestore and return some selected fields as a list. Furthermore, nothing can await the call to getData() because a build method is not asynchronous (it must return a Widget, not a Future<Widget>). For you to understand, I will transform your code just a tiny bit: Apr 20, 2022 · I have this static function which returns a Future from my database (firebasefirestore). I want the function to: Query the 'chat' collection on the field 'users'. I'm running into issues with the Future Builder. What you can do here is create a Collections for Players where you can sort them by Rank. get (). Both are highly customizable and optimized for dynamic content displays, making them essential for any app that requires scrolling through a collection of items such as images, text, or interactive elements. wh In Flutter code, you can listen (or subscribe) to Firestore collections and documents, and your code will be notified any time data changes. map<SomeRealType>((snap) => snap. It then commits the batch and returns a Future when the batch is finished. toString () didn't work, and just retu Oct 28, 2024 · I'm on Flutter-web. Intro Hello and Welcome to the 12 th of the Flutter App Development Tutorial Series. Currently I periodically increase the limit variable in the code below and rel Nov 12, 2022 · READ In my opinion read is the most versatile of the crud operations with flutter+firestore. instance Mar 9, 2020 · Basics You should use Firestore object and call it's instance to access the database from Firestore: final Firestore database = Firestore. Jun 4, 2020 · I'm trying to create a Flutter application with a List View which retrieves data from Cloud Firestore. 8. The issue here seems to lean more on how you can manage your Firestore data to be displayed. By following this tutorial, you will be able to create a robust and scalable to-do list app that meets the needs of your users. I get the list from Firestore with a FutureBuilder and a listview. To get started without setting up Firebase Authentication, you can configure your rules for public access. Here’s a simple explanation, real-life analogies, and examples to help you master these two powerful tools. Mar 4, 2021 · What was happening was that I was fetching from the database a List of type dynamic, which in this case is some kind of deserialized JSON looking text. 6/php/mssql_connection/get_username. We create a simple grocery app that stores grocery information into Firestore as well as adds and deletes grocery items from Firestore. The goal is to load data in chunks from Firestore as the user We built a simple Flutter application that uses the Firestore database as a backend. Before starting into this article first … Apr 14, 2024 · If you need to show real-time data from Firestore using pagination, read: Firestore Pagination Made Easy with FirestoreListView in Flutter. In this app, listening for Firestore updates is done in the method called AppState. When I changed the function signature of my function fetchFavorites to this, the build method of my calling class started working: Learn how to seamlessly convert your `Future List ` from Firestore to `List String ` in Flutter Firebase applications, enhancing your app's data handling and Dec 19, 2023 · How would you convert it to a non Future so that it may be used in a ListView. So I have a list of items with a "paidStatus" field attached to it. collection('cars') May 1, 2024 · Introduction This tutorial demonstrates how to integrate Firebase Firestore with Flutter for effective product data management. If you’re new to connecting Flutter with Firebase, don’t worry—I already have a detailed blog on my website that May 21, 2020 · I am new to flutter. Fully updated to Riverpod 2. document(widget. May 7, 2025 · I need to retrieve this list "items" from firestore this the structure by this code Future<void> fetchCategories (String userId) async { return databaseReference . data['gallery_images']). Tried to do it via FieldValue. Feb 15, 2022 · Introduction This article examines Firestore operations with respect to Documents and Collections and demonstrates how to mock and test them. but order screen is doubling the documents at every refresh. I want to visit every pupil and wrote await Flutter transforms the entire app development process. Oct 27, 2020 · Flutter firestore return Future<List<Data>> returns empty Asked 4 years, 3 months ago Modified 4 years, 3 months ago Viewed 145 times Aug 25, 2024 · I’m having trouble getting a List<Event> to display in the Calendar I’m developing. whenComplete fires before the list is ready This is the function to make the list and return it: Future<List<EventDistance>> getEventsDistanceList(String eventId) async{ Nov 26, 2021 · I'm developing a favorites List with this information structure: Collection ('users') => Doc ('uid') => FavoritesList (array of saved ids). You obviously don't won't to call all the data you have but only whats relevant to your use case. What about Cursor-Based Pagination? Feb 16, 2022 · In this article, we will use Cloud Firestore in a Flutter application, in which we will create a simple application to show how to model our data class so we can send, retrieve, delete and update data. documents return List and not List types, you will need to convert List of documentsnapshots to List<Map<dynamic, dynamic>>. Dec 17, 2018 · I have an async function that is calling out to Firestore to pull in a data value. We traveled a long way to be here. Maybe I'm thinking too much in sql terms. May 11, 2019 · Advanced state management techniques when working with Firebase Auth & Firestore in Flutter applications. If you'd like to filter out Players to be displayed base from their Rank. How can I retrieve data from Firestore and form a new profile with every child in my collection? Second question is how can I use this list in another dart file? thank you Tha Learn about Firestore actions in your FlutterFlow app, including how to perform various database operations. We created splash screen, wrote a theme, made a custom app bar, made authentication screen 3 days ago · Cloud Firestore supports the following aggregation queries: count() sum() average() Cloud Firestore calculates the aggregation and transmits only the result back to your application. Become a Flutter developer There's never any mystery with open source — the source for Flutter is right there in front of you. I have this Future function Future<User> _fetchUserInfo (String id) async { User fetchedUser; await Firestore. I want to wait until the list is ready, and with this list do something. It’s loved for its scalability, flexibility, and ease of integration This tutorial walks you through setting up your Flutter Application for Firebase Cloud Firestore including support for both iOS and Android devices. I can confirm that my is getting the data from the document, but i cannot pass the gathered data to my Json object. body); } @override Widget build(BuildContext context) { Apr 11, 2018 · Today I started experimenting with Firebase Live database. 0+2 Code: FutureBuilder ( future: _sessionsLogCollection . Oct 28, 2025 · The goal here is to guide you through some next steps of learning Flutter. 6 days ago · Get started with Flutter. instance; Now, the database object will get you access to all collections inside your Firestore database. Get Started With Cloud Firestore This is the eleventh article related to Firebase in Flutter, you can check the previous articles in the below links: Get Started With Firebase in Flutter Using I am building a flutter app and using cloud-firestore, this is how my database looks like I want a function that retrieves all documents in the collection called "Driver List" in an arra Feb 16, 2020 · In this guide, we will use a list of data in a listview and perform the different queries provided by firebase realtime database in a flutter application - 2024 update Lists & Grids In FlutterFlow, ListView and GridView are versatile widgets designed for displaying lists and grids of elements, respectively. Jan 7, 2023 · I can't seem to figure out how to get a List after querying a specific Firestore collection. collection ('channels'). Now I want to get this collection in my Flutter application s May 20, 2020 · But the problem is that the whereIn can only take in a list that have 10 entries or less according to the firestore documentation Limitations Note the following limitations for in and array-contains-any: The StreamBuilder widget is used in many kinds of Flutter applications, especially chat applications, social networks, real-time content updates, etc. collection('cars') How may I query 2 documents in Flutter Firestore and return as a List? Asked 5 years, 4 months ago Modified 5 years, 4 months ago Viewed 460 times Mar 11, 2022 · So I am trying to pass a list of String values from firestore table, but I am getting an exception type 'Future<dynamic>' is not a subtype of type 'List<dynamic>' Aug 29, 2018 · I want to get Future return value and use it like variable. How can make sure the app Sep 16, 2024 · Exporting data to Excel from Firebase Firestore in Flutter is a powerful feature that can greatly enhance any app, especially those dealing with business data. import 'package:cloud Nov 2, 2021 · Based on this, it would be possible to return a new Stream with document IDs from the snapshots () Stream that comes from the CollectionReference. _listenForEntries. Thanks for help. You also learned how to perform the four most important tasks when working with a database: creating data, updating data, reading data, and deleting data. to Nov 21, 2022 · I think the await function is so lengthy that flutter simply returns the empty list I declared in the function. body. Despite calling it from Firestore, I’m not able to retrieve the list of events. I have about 5000 schools and 500000 pupils. Dec 10, 2024 · If you’ve worked with Flutter, you’ve probably come across FutureBuilder and StreamBuilder. The BLoC pattern helps separate business logic from the UI, providing a… Jul 3, 2020 · I'm trying to create a list in flutter, loading data asynchronously from firestore for each cell: Future getUserDetails(String userID) async { DatabaseService databaseService = I am using flutter with firebase to create an app. Nov 2, 2021 · Based on this, it would be possible to return a new Stream with document IDs from the snapshots () Stream that comes from the CollectionReference. I have a Firestore collection schools and every school has a collection of pupils. The CollectionReference Stream is of type QuerySnapshot, which, according to the documentation, contains a docs property of type List<QueryDocumentSnapshot>. collection ('/categories/$ Apr 14, 2024 · I made a function to read a the data from a specific document and it works (code below) Future<List<String>> getAllServicesFromDatabase ()async { List<String> services = []; Apr 7, 2022 · you wanted to convert the firestore data to json to put on list? Sep 4, 2020 · With latest version of: Flutter + cloud_firestore: ^0. . But what I want to do is get a record from my database where a value equals a variable with flut Jan 5, 2021 · List<String> groupIds = ['a1', 'b1', 'c1']; I want to store it in a Firestore document. Dec 31, 2024 · Flutter’s FutureBuilder widget is a powerful tool for handling such tasks seamlessly. By default, read and write access to your database is restricted so only authenticated users can read or write data. Retrieve only the document (s Dec 12, 2020 · in my Flutter app, I need to get array data from Firestore with uid but neither of my code variants works as I want it to. Oct 28, 2022 · A complete guide to the Riverpod package as a reactive caching and data-binding framework. It guides you through some of the most important pieces of building Flutter applications. (Note that by adding a generic to the map you could return a list of specifically what you want - e. In order to render it on screen I have develop the following Future: Future<List<Product?>> getFavo Product Details Page Flutter | Images List | Dynamic Product Variations | Firebase Firestore Flutter Fetch Data from Firebase | Fetch and Display Products on Grid Dec 14, 2024 · The element type 'Future<List<FilingData>>?' can't be assigned to the list type 'Future<List<dynamic>>'. g. How may I query 2 documents in Flutter Firestore and return as a List? Asked 5 years, 4 months ago Modified 5 years, 4 months ago Viewed 460 times Aug 29, 2018 · I want to get Future return value and use it like variable. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase. 🔄 Automatic Type Conversion The package automatically converts between Firestore documents and Dart objects, eliminating the need for manual serialization and deserialization. Jul 12, 2022 · Flutter | FireStore - logic with if / else statement in Future or FutureBuilder Asked 3 years, 1 month ago Modified 3 years, 1 month ago Viewed 373 times Sep 23, 2022 · flutter google-cloud-firestore flutter-future edited Sep 23, 2022 at 4:13 asked Sep 23, 2022 at 1:49 Globe The batchUpdateTodos function takes a list of Todo objects and creates a WriteBatch with updates for each Todo. 14. Oct 30, 2025 · The Flutter SDK has the packages and command-line tools that you need to develop Flutter apps across platforms. I got a lot of help in a previous postlearned a lotand wanted to start over with hopefully a cleaner questio Jun 10, 2022 · Use Streams, Firebase Cloud Functions, and FireStore to display real-time changes in an application. I am trying to set sorting by date my cards. In this project, I have lots of cards that can turn stuff ON and OFF, currently, for each user, I have created 3 Dec 16, 2020 · You can't have async code in your build function because it's the function assembling the widget tree to render immediately to the screen, instead what you do is use a StreamBuilder widget which gives you access to async events, the stream is listening to future data arriving from Firebase and rebuilds that section of the widget tree when the asynchronous event arrives. The code below prints out the doc. Use a FutureBuilder on a cached Future. Jul 20, 2023 · Firebase Firestore is a powerful NoSQL cloud database that is instrumental in building mobile, web, and server applications. id for each document in the collect Apr 3, 2020 · In this article, we will add Cloud Firestore to a Flutter application, perform different read, write operation and use some queries to… Jul 19, 2023 · In this blog, we will explore how to use Firebase Firestore in Flutter to perform CRUD (Create, Read, Update, and Delete) operations, as well as other essential functionalities it offers. Jun 4, 2020 · I try to get data from a Stream (Firestore), and take this data to a list. Step-by-step guide included. But . instance. Learn how to: Set up Firestore and configure security rules An online Dart editor with support for console and Flutter apps. Review the messaging about securing your Cloud Storage data using security rules. This does make your database open to anyone, even people not using your app, so be sure to restrict your database again when you set up authentication. php '); print(response. Oct 15, 2022 · Use the initState method of the stateful widget to make a call to firestore to fetch all the documents that have the wordName property and get the word from the result and set it to a new list May 31, 2020 · From your question, I don't see any issues on using FutureBuilder in Flutter. vsvzcsn pwdwwqf kej woxy gxdqfr zmsa yzvdgjl jyqkw hvoye yui ourt qscb kfzmr rlhtyr yndnfl