Creating a version of an object: Example

The following example can be used to understand how to create object versions.

Create a container with the X-Versions-Location header or add the header to an existing container.
In this example, version_container is the container that holds old versions of objects and container1 is a new or existing container for which object versioning is to be enabled.
```
swift post -H "X-Versions-Location: version_container" container1
```

Run swift stat on container1 to check that X-Versions-Location header is applied:

swift stat container1
            Account: AUTH_f92886c4e3a347a18c29bae581b36788
              Container: container1
                Objects: 0
                  Bytes: 0
               Read ACL:
              Write ACL:
                Sync To:
               Sync Key:
          Accept-Ranges: bytes
       X-Storage-Policy: Policy-0
             Connection: keep-alive
            X-Timestamp: 1468226043.18746
             X-Trans-Id: tx8d17476a914a40d781b0a-0057835a01
           Content-Type: text/plain; charset=utf-8
    X-Versions-Location: version_container

If version_container does not exist, create a new container:
```
swift post version_container
```
Run swift list at the account level to check that both containers are created successfully:
```
swift list
container1
version_container
```
Upload an object to container1:
```
swift upload container1 ImageA.jpg
```
Upload the second version of the object:
```
swift upload container1 ImageA.jpg
```
Upload the third version of the object:
```
swift upload container1 ImageA.jpg
```
Run swift list on the container to view the stored object:
```
swift list container1
    ImageA.jpg
```
Note: The container1 container contains only the most current version of the objects. The older versions of object are stored in version_container.

Run swift list on version_container to see the older versions of the object:

swift list version_container
 00aImageA.jpg/1468227497.47123
 00aImageA.jpg/1468227509.48065

To delete the most current version of the object, use the DELETE operation on the object:

swift delete container1 ImageA.jpg
ImageA.jpg
(deleted latest/third version)

# swift list container1
ImageA.jpg
(Second version is now the latest version)

# swift list version_container
00aImageA.jpg/1468227497.47123
(Initial version of the object)