Get version after PubObject using SDK for Java v2

Question

I'm trying to migrate from SDK for Java v1 to v2.

With the `AmazonS3` client in SDK v1, PutObject returns PutObjectResult which makes the object metadata available.  From the object metadata I can get the version ID of the file (along with content length and last modified timestamp).

I don't see a way to get any of this information from the `S3Client` in SDK v2 from the response to the PutObject.  I do not want to have to make a separate call to get the version ID.

I'm really hoping someone can tell me that this data is still available in the response and that I'm just not seeing it.  Any pointers would be appreciated.

Thanks.

Edited to add that I don't want to make a second request.  I'm looking for similar behavior to v1.

Answer

Hi Mark,

Yes, data is still available.

You can get version id by us issuing a headObject method call (https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/s3/S3Client.html#headObject(java.util.function.Consumer)).

The object needs to exists before you can call the method so first you ll need to PUT it and then execute the HEAD call.

It’s response, HeadObjectResponse, will contain the version Id:

https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/s3/model/HeadObjectResponse.html#versionId()

Hope it clarifies

Get version after PubObject using SDK for Java v2

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