LocationRestraint always empty on GetBucketLocation call

[jcarter3]

• I've gone though the API reference
• I've checked AWS Forums and StackOverflow for answers
• I've searched for previous similar issues and didn't find any solution

Describe the bug
GetBucketLocation returns empty LocationConstraint

Version of AWS SDK for Go?
Example: v0.29.0

Version of Go (go version)?
go version go1.15.5 linux/amd64

To Reproduce (observed behavior)

cfg, err := config.LoadDefaultConfig()
// check err
svc := s3.NewFromConfig(cfg)
bucketLocation, err := svc.GetBucketLocation(context.Background(), &s3.GetBucketLocationInput{Bucket: aws.String("somebucket")})
// check err
fmt.Printf("bucket location: %v\n", bucketLocation.LocationConstraint)
// prints empty location for all buckets in all regions, (even those outside us-east-1)

Expected behavior
For the region that the bucket exists in to be returned (only nil/empty for buckets in us-east-1, per the documentation).

Additional context
I've validated that the proper region is returned via the aws cli

[LumpKim]

Is any solution for this? I had same issue about s3.client.GetBucketLocationOutput.LocationCostraint is empty.

[jasdel]

Thanks for reporting this issue @jcarter3 and @LumpKim we're investigating what the cause of this issue is.

[Chandrian]

I'm having the same issue, I tried with an assume role using the assume role workaround and getting the same empty result.
This was working in older v2 version. I'm using RC now

ctx := context.TODO()
cfg, err = config.LoadDefaultConfig(ctx,
//config.WithClientLogMode(aws.LogSigning|aws.LogRequestWithBody|aws.LogResponseWithBody),
// This can be remove when the following bug has been fixed and dependencies updated to latest
// #914
//config.WithClientLogMode(aws.LogSigning|aws.LogRequestWithBody|aws.LogResponseWithBody),
config.WithAPIOptions([]func(stack *middleware.Stack) error{
func(stack *middleware.Stack) error {
return stack.Initialize.Add(clearContextContentSha256{}, middleware.Before)
},
}),
)
if err != nil {
log.Fatal("failed to load config, %w", err)
}
cfg.Credentials = aws.NewCredentialsCache(stscreds.NewAssumeRoleProvider(
sts.NewFromConfig(cfg),
"arn:aws:iam::123456789012:role/RO"))

	s3Client := s3.NewFromConfig(cfg)

getBucketLocationResponse, err := s3Client.GetBucketLocation(context.Background(),
&s3.GetBucketLocationInput{Bucket: bucket.Name})
if err != nil {
log.Printf("failed to access the bucket: %s. Error message: %v", *bucket.Name, err.Error())
continue
}

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