Question 184867 in Flutter Question posted in
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Error reading Firestore data from flutter

getData() async{
    var result = await FirebaseFirestore.instance.collection('users').doc('documentId').get();
    print(result['']);
  }

  @override
  void initState() {
    getData();
    super.initState();
  }

In, if the value in result[''] is aa or 1aa, the data can be read, but if it is 1.aa, it cannot be read. How do I solve this?

error code is [VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: Bad state: field does not exist within the DocumentSnapshotPlatform
#0      DocumentSnapshotPlatform.get._findKeyValueInMap (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:87:7)
#1      DocumentSnapshotPlatform.get._findComponent (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:105:23)
#2      DocumentSnapshotPlatform.get (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:121:12)
#3      _JsonDocumentSnapshot.get (package:cloud_firestore/src/document_snapshot.dart:92:48)
#4      _JsonDocumentSnapshot.[] (package:cloud_firestore/src/document_snapshot.dart:96:40)
#5      _jiujitsu_CalState.getData (package:el_sports/JiuJitsu_Page/jiujitsu_cal_page.dart:18:17)
<asynchronous suspension>

I tested the result[''] value with aa and 1aa.

How can I bring up the result['1. email']?

enter image description here

Tags:

3

Answers


  1. 0

    In here use a real document id instead of word

    FirebaseFirestore.instance.collection('users').doc('ox......')//use your id
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  2. 0

    You don’t wanna set the field name using that format which contains some characters such as "." or whitespaces. That’s not a proper naming practice for database fields.

    I think the error message is telling that it is looking for the field called email which is subfield of the field 1 which is not existent.

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  3. 0

    You’re getting that error because you’re using the . (dot) character inside the name of the field. Please note that the dot is used as a separator between maps that exist within Cloud Firestore documents. To solve this, stop using the dot within field names. If you need some kind of order, then I recommend you change the following key:

    1. email

    to:

    1_email

    And your error will go away.

    Besides that, I cannot see a document that has an ID set to documentId. As also @MrShakila mentioned in his answer, in order to be able to read the document you have to pass the exact document ID that exists in the database to the doc() function:

    var result = await FirebaseFirestore.instance.collection('users').doc('ox...wI').get();
//                                                                       👆
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