Is it possible to upload to S3 directly from URL u

问题:

I know there is a way to upload to S3 directly from the web browser using POST without the files going to your backend server. But is there a way to do it from URL instead of web browser.

Example, upload a file that resides at http://example.com/dude.jpg directly to S3 using post. I mean I don't want to download the asset to my server then upload it to S3. I just want to make a POST request to S3 and it uploads it automatically.

回答1:

I found this article with some details. You will probably have to modify your buckets' security settings in some fashion to allow this type of interaction.

http://aws.amazon.com/articles/1434

There will be some security issues on the client as well since you never want your keys publicly accessible

回答2:

It sounds like you want S3 itself to download the file from a remote server where you only pass the URL of the resource to S3.

This is not currently supported by S3.

It needs an API client to actually transfer the content of the object to S3.