get-object.groovy

def getObject() {
    def listObjectsResponse = listObjects()
    GetObjectRequest getObjectRequest = GetObjectRequest.builder()
            .namespaceName(namespaceName)
            .bucketName(bucketName)
            .objectName(listObjectsResponse.listObjects.objects.first().name)
            .build()
    GetObjectResponse getObjectResponse = objectClient.getObject(getObjectRequest)
    def object = Util.writeInputStream(getObjectResponse.inputStream, getObjectResponse.contentType)
    return [object: object, response: getObjectResponse]
}