I can list all objects in a container¹ with:

http GET https://swift.example.com/v1/AUTH_ID/myfiles?format=json

Which might return:

[
    {
        hash: "52f5fd7b187da7afa4551bee7a128e73",
        last_modified: "2014-05-13T11:32:16.159130",
        bytes: 6959708,
        name: "header.jpg",
        content_type: "image/jpeg"
    }, ..
]

I can also set arbitrary meta tags² against an object:

http POST https://swift.example.com/v1/AUTH_ID/myfiles/header.jpg X-Object-Meta-Author:robin

I can now retrieve this meta data again for the individual object:

http HEAD https://swift.example.com/v1/AUTH_ID/myfiles/header.jpg

HTTP/1.1 200 OK
Content-Length: 6942401
Content-Type: image/jpeg
...
X-Object-Meta-Author: robin

But is there any way to retrieve all objects in the container along with their metadata?

References

1: http://docs.openstack.org/api/openstack-object-storage/1.0/content/GET_showContainerDetails__v1__account___container__storage_container_services.html
2: http://docs.openstack.org/api/openstack-object-storage/1.0/content/POST_updateObjectMeta__v1__account___container___object__storage_object_services.html