Question

我需要从Google云端存储中删除多个对象。我一次删除了一个对象。

这是我的代码：

var gcloud = require('gcloud')({
  projectId: "sampleProject1"
});
var gcs = gcloud.storage();
var myBucket = gcs.bucket('sampleBucket1');
var file = myBucket.file('1.png');

file.delete(function (err, apiResponse) {
  if (err) {
    console.log(err);
  }
  else {
    console.log("Deleted successfully");
  }
});

但我需要同时删除多个对象。有可能吗？

Answer 1

We do have bucket#deleteFiles that will handle throttling the requests for you. You can use the prefix option to target multiple images by a naming convention, like:

bucket.deleteFiles({ prefix: 'image-' }, callback);

If that doesn't work, we also have a guide that shows how you can do the throttling logic yourself. See "My requests are returning errors instructing me to retry the request": https://googlecloudplatform.github.io/gcloud-node/#/docs/v0.29.0/guides/troubleshooting

Edit to elaborate on how to do the throttling using async:

var async = require('async');
var PARALLEL_LIMIT = 10;

function deleteFile(file, callback) {
  file.delete(callback);
}

async.eachLimit(filesToDelete, PARALLEL_LIMIT, deleteFile, function(err) {
  if (!err) {
    // Files deleted!
  }
});

Answer 2

无法同时从GCS原子删除多个对象。

但是，您可以通过一次调用发出多个请求，使用batch API返回每个操作的状态。

Answer 3

我创建了一个要删除的所有对象的数组，然后在该数组上进行迭代，执行在Google云存储文档中指定的“删除”功能。

Delete GCS object

const storage = new Storage({keyFilename: 'google-credentials.json'});
const imagesToDelete = ['fileName1', 'fileName2', 'fileName3'];
    
    imagesToDelete.map(async (image) => {
      await storage
        .bucket('yourbucketName')
        .file(image)
        .delete();
    });

Answer 4

    var gcloud = require('gcloud')({
    projectId: "sampleProject1"
     });
    var gcs = gcloud.storage();
   var myBucket = gcs.bucket('sampleBucket1');
   var collection = gcs.collection("Add file for delete");  
   collection.insert({'1.png'},{'2.png'});

   collection.delete(function (err, apiResponse) {
   if (err) {
    console.log(err);
    }
   else {
    console.log("Deleted successfully");
   }
   });

使用node.js从谷歌云存储中删除多个对象

4 个答案: