获取新上载的CloudFiles资产的公共URL

Question

When uploading new asset into the CloudFiles storage I want to get public URL of this asset (if container is CDN-enabled). I figured out the only way to do this is to issue 3 (yes, three!) requests to RackSpace:

1. Authenticate user and get x-auth-token , x-storage-url and x-cdn-management-url .
2. After getting all the tokens and URLs, upload a file to the container.
3. Issue a HEAD request to the x-cdn-management-url for public URL of the container.

I just want to make sure that I really need 3 requests per upload to get the public URL of the asset I just uploaded. All the operations must be performed programmatically via API.

Answer 1

I believe that once you have your container's CDN URL, every object you put in it is appended to it. So, if your container's CDN URL is cdn1.foo.cloudstorage.com , your objects will have the URLs cdn1.foo.cloudstorage.com/object1.ext , cdn1.foo.cloudstorage.com/object2.ext , etc.

You only need the three steps to get the initial container CDN URL. Afterwards, it's simple.

Answer 2

If you're using Java, PHP, or Python, checkout one of the Rackspace SDKs . For examples on how to use CDN with each see:

1. Java: CloudFilesPublish.java
2. PHP: cdn.php
3. Python: container_cdn.py