Firebase存储规则customMetadata不起作用

service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write: if request.auth != null;
      // 添加自定义元数据
      function addCustomMetadata(metadata) {
        metadata.customField = "customValue";
        return metadata;
      }
      // 在上传时调用函数
      onUpload(addCustomMetadata(request.resource.metadata));
    }
  }
}

const storageRef = firebase.storage().ref();
const fileRef = storageRef.child('path/to/file');

const metadata = {
  customField: 'customValue'
};

fileRef.put(file, metadata)
  .then(() => {
    console.log('File uploaded with custom metadata');
  })
  .catch((error) => {
    console.error('Error uploading file:', error);
  });

service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write: if request.auth != null;
      function addCustomMetadata(metadata) {
        metadata.customField = "customValue";
        return metadata;
      }
      onUpload(addCustomMetadata(request.resource.metadata));
    }
  }
}

const storageRef = firebase.storage().ref();
const fileRef = storageRef.child('path/to/file');

const metadata = {
  customField: 'customValue'
};

fileRef.put(file, metadata)
  .then(() => {
    console.log('File uploaded with custom metadata');
  })
  .catch((error) => {
    console.error('Error uploading file:', error);
  });