HEAD Object operation retrieves metadata from an object without returning the object.
Note: You must have READ access to the object to use this operation.
A HEAD request has the same options as a GET operation on an object, and the HEAD response is identical to the GET response, except that there is no response body.
HEAD /ObjectName HTTP/1.1 Host: bucketname.data.riak.com Date: date Authorization: signature_value
The following request returns the metadata of an object.
HEAD /basho-process.jpg HTTP/1.1 Host: bucket.data.riak.com Date: Wed, 06 Jun 2012 20:47:15 +0000 Authorization: AWS AKIAIOSFODNN7EXAMPLE:0RQf4/cRonhpaBX5sCYVf1bNRuU=
HTTP/1.1 200 OK Date: Wed, 06 Jun 2012 20:48:15 GMT Last-Modified: Wed, 06 Jun 2012 13:39:25 GMT ETag: "3327731c971645a398fba9dede5f2768" Content-Length: 611892 Content-Type: text/plain Connection: close Server: MochiWeb/1.1 WebMachine/1.9.0 (someone had painted it blue)