为什么S3.deleteObject在指定的键不存在时不会失败？

Using the AWS SDK for Node, why do I not get an error when trying to delete an object that doesn't exist (i.e. the S3 key is wrong)?

使用AWS SDK for Node,为什么在尝试删除不存在的对象时(即S3键错误),我不会收到错误?

If I specify a non-existent bucket on the other hand, an error is produced.

另一方面,如果我指定不存在的存储桶,则会产生错误。

If you consider the following Node program, the Key parameter lists a key which doesn't exist in the bucket, yet the error argument to the callback is null:

如果考虑以下Node程序,Key参数列出了存储桶中不存在的密钥,但回调的错误参数为null:

var aws = require('aws-sdk')

function getSetting(name) {
  var value = process.env[name]
  if (value == null) {
    throw new Error('You must set the environment variable ' + name)
  }
  return value
}

var s3Client = new aws.S3({
  accessKeyId: getSetting('AWSACCESSKEYID'),
  secretAccessKey: getSetting('AWSSECRETACCESSKEY'),
  region: getSetting('AWSREGION'),
  params: {
    Bucket: getSetting('S3BUCKET'),
  },
})
picturePath = 'nothing/here'
s3Client.deleteObject({
  Key: picturePath,
}, function (err, data) {
  console.log('Delete object callback:', err)
})

1 个解决方案

#1

Because that's what the specs say it should do.

因为这是规范所说的应该做的。

deleteObject(params = {}, callback) ⇒ AWS.Request

deleteObject(params = {},callback)⇒AWS.Request

Removes the null version (if there is one) of an object and inserts a delete marker, which becomes the latest version of the object. If there isn't a null version, Amazon S3 does not remove any objects.

删除对象的null版本(如果有)并插入删除标记,该标记将成为对象的最新版本。如果没有null版本,则Amazon S3不会删除任何对象。

So if the object doesn't exist, it's still not an error when calling deleteObject, it still adds the delete marker.

因此,如果该对象不存在,则在调用deleteObject时仍然不是错误,它仍会添加删除标记。

#1