Save data on S3 using Javascript or Jquery

I want to collect data entered by the user in a browse开发者_如何学JAVAr and save to Amazon S3. Is this something I can do with Javascript/Jquery?

I know this is an old question, but I had the same issue and think I've found a solution. S3 has a REST interface to which you can POST data directly, without exposing your AWS Secret Key. So, you can construct an AJAX POST request to your S3 bucket endpoint using Javascript or jQuery. You can specify an access policy in the request as well, which restricts upload access to only certain buckets and certain directories.

Amazon verifies the authenticity of your requests using an HMAC signature which you provide in the request. The signature is constructed using details about the request and your AWS Secret Key, which only you and Amazon know, so fraudulent requests can't be made without someone having a valid signature.

Yes it is possible, and as I already pointed in the comments of the accepted answer there are legitimate and useful uses to do so without compromising security and credentials.

You can post objects to S3 directly from the browser: http://docs.amazonwebservices.com/AmazonS3/latest/API/RESTObjectPOST.html

Bad idea:

1) Think of how much fun people could have with emptying your bank account when they find your S3 credentials embedded in your Javascript code.

2) The javascript would be loaded from your server and trying to talk to Amazon's servers - that's forbidden as it's cross-domain communication.

Something like this you'd want to handle on the server. You could easily whip up an AJAX interface to send the data client browser -> your server -> amazon. That way your S3 credentials are store on your server and not transmitted willy-nilly to everyone using your site.

Maybe have a look at node.js, and try the aws-sdk package by:

npm install aws-sdk

There are blog and doc I found about how to upload files to S3:

this blog. and aws doc.

There are a variety of issues with attempting to access S3 via client-side code:

• There is no way to secure your credentials.
• Many responses are in XML instead of JSON, and the XML parsing engine in JavaScript is heavy and slow.
• Authenticating the requests would require JavaScript implementations of HMAC-SHA1.
• There are issues with making cross-domain requests from JavaScript without routing through a proxy.

All-in-all, there are no feasible solutions for client-side JavaScript at the moment. If you're interested in server-side JavaScript, there are some S3 classes floating around GitHub for Node.js.