Hi, I’ve been playing around with LakeFS Playground (GREAT feature btw 💪🏼) I’m trying to integrate with LakeFS via AWS Java SDK as follows:

val logger = LoggerFactory.getLogger("LakeFS Integration Demo")  
val s3client = AmazonS3ClientBuilder.standard()
     .withEndpointConfiguration(AwsClientBuilder.EndpointConfiguration(
          "<https://q73alt5prpbezujz.lakefs-demo.io>",
          null
      ))
     .withCredentials(ProfileCredentialsProvider("lakefs"))
     .withClientConfiguration(PredefinedClientConfigurations.defaultConfig())
     .build()

val buckets = s3client.listBuckets()
<http://logger.info|logger.info>("listBuckets(): $buckets")
val doesBucketExist = s3client.doesBucketExistV2(buckets.first().name)
<http://logger.info|logger.info>("doesBucketExistV2(): $doesBucketExist")

When I run this snippet I get a weird behaviour.

buckets

evaluates to a list of size 1 containing a bucket named

my-repo

as expected. However,

doesBucketExist

evaluates to

false

In addition, any other API returns 404 (bucket not found)

17:02:58.890 [main] INFO LakeFS Integration Demo - listBuckets(): [S3Bucket [name=my-repo, creationDate=Mon Feb 28 12:12:12 IST 2022, owner=null]]
17:02:59.585 [main] INFO LakeFS Integration Demo - doesBucketExistV2(): false

Might be worth mentioning that using the AWS CLI works just fine:

» aws --profile lakefs --endpoint-url <https://q73alt5prpbezujz.lakefs-demo.io> s3 ls
2022-02-28 12:12:12 my-repo

» aws --profile lakefs --endpoint-url <https://q73alt5prpbezujz.lakefs-demo.io> s3 ls <s3://my-repo>
                           PRE main/