Question

我的Dart代码中没有错误，但是我无法将数据写入Firestore，我无法将数据写入Cloud Firestore，我的代码中没有错误：但是错误消息反复出现错误如下：

  W/Firestore( 9874): (21.3.0) [Firestore]: Write failed at user/6nattT06v0dfeeb6Rm9ablZuijU2/reports/reports_1: Status{code=PERMISSION_DENIED, description=Missing or insufficient permissions., cause=null}
E/flutter ( 9874): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(Error performing setData, PERMISSION_DENIED: Missing or insufficient permissions., null)

代码段：

```

abstract class Database {
    Future createReport(Map<String, dynamic> reportData);
    }
    
    class FirestoreDatabase implements Database{
    FirestoreDatabase({@required this.uid}) : assert (uid!=null);
    final String uid;
    
    //TODO: to create a report hard coded:
    Future createReport(Map<String, dynamic> reportData) async {
    final path = 'user/$uid/reports/reports_1';
    final documentReference = Firestore.instance.document(path);
    await documentReference.setData(reportData);
    }
    }
    void _createReport(BuildContext context) { final database = Provider.of<Database>(context); database.createReport({ 'crime Type' : 'Blogging', 'Description' : 'description needs to be provided', }); }```
    
    ```class Report{
    Report({@required this.crimeType, @required this.description});
    final String crimeType;
    final String description;
    //TODO: to map data to Firestore
    Map<String, dynamic> toMap(){
    return{
    'CrimeType' : crimeType,
    'Description': description,
    };
    }
    }```

Firebase规则：

rules_version = '2'; 
service cloud.firestore {
 match /databases/{database}/documents {
 match /users/{uid}/Reports/{document=**} {
 allow read, write; }}}

Answer 1

已编辑！！！

OLD：

尝试将您的Firestore规则更改为：

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /users/{uid}/Reports/{document=**} {
      allow read, write: if true;
    }
  }
}

唯一真正更改的地方是此行：

allow read, write: if true;

如果这不起作用，请尝试：

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if true;
    }
  }
}

新：

我的第一个答案实际上是不安全的，因为使用

if true

允许有权访问您的firebase项目的任何人拥有管理员权限。而是使用它，它仅在应用程序的请求经过身份验证时才有效：

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if request.auth != null;
    }
  }
}

对不起，您编辑晚了，祝大家编码愉快！

PlatformException（执行setData时出错，PERMISSION_DENIED：权限缺失或不足。，null）

1 个答案: