使用node.js从Google云存储删除多个对象 [英] Delete multiple objects fron google cloud storage using node.js
问题描述
我需要从Google云存储中删除多个对象.我一次删除了一个对象.
I need to delete multiple objects from google cloud storage. I have deleted one object at a time.
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");
}
});
但是我需要同时删除多个对象.有可能吗?
But I need to delete multiple objects simultaneously. Is it possible or not?
推荐答案
我们确实有 bucket#deleteFiles
,它将为您处理请求的限制.您可以使用 prefix
选项通过命名约定来定位多个图像,例如:
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);
如果这不起作用,我们还有一个指南,向您展示如何自己执行节流逻辑.请参阅我的请求返回错误,指示我重试该请求":
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
编辑以详细说明如何使用异步:
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!
}
});
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