Delete multiple objects fron google cloud storage using node.js

Question

I need to delete multiple objects from google cloud storage. I have deleted one object at a time.

This is my code:

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");
  }
});

But I need to delete multiple objects simultaneously. Is it possible or not?

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!
  }
});