How to read data from Firebase Realtime database using Flutter/Dart

Question

I am using Flutter and I would like to retrieve some data from my realtime database Firebase. I have the following data stored in the my realtime database Firebase:

How can I get each piece of information from it? For example I would like to get the name 'Tom' only?

Answer 1

Reading through firebase documentation you can see that how we read and write data from RTDMS firebase.

  static Future<List<PostModel>> getPost() async {
    Query postsSnapshot = await FirebaseDatabase.instance
      .reference()
      .child("posts")
      .orderByKey();

    print(postsSnapshot); // to debug and see if data is returned

    List<PostModel> posts;

    Map<dynamic, dynamic> values = postsSnapshot.data.value;
    values.forEach((key, values) {
      posts.add(values);
    });

    return posts;
  }

your can call this function at the time of build the widget or after any action