diff --git a/src/garageS3.jl b/src/garageS3.jl
index 8b828e3..3e5d17f 100644
--- a/src/garageS3.jl
+++ b/src/garageS3.jl
@@ -21,8 +21,9 @@ storage = GeneralUtils.GarageStorage(
 )
 
 # Safe to run inside concurrent HTTP handlers (e.g., Oxygen.jl, HTTP.jl)
-downloadUrl = GeneralUtils.put_file(storage, "users1.json", "{\"status\": \"active\"}")
-keys = GeneralUtils.list_files(storage)
+# use UUID as filename because GarageS3 requires unique filename for each uploaded object
+GeneralUtils.put_file(storage1, "transferjob-(GeneralUtils.uuid4snakecase())", "{\"status\": \"inactive\"}")
+key = GeneralUtils.list_files(storage)
 
 println("Read back: ", data)
 println("Bucket keys: ", keys)
@@ -33,7 +34,7 @@ curl -v \
   http://192.168.88.106:3902/users-1002.json
 
 # test with API
-data = String(GeneralUtils.get_file(storage, "users-1005.json"))
+data = String(GeneralUtils.get_file(storage, key[1]))
 
 # test with a browser
 https://s3-web.mydomain.com/my_bucket_name/users-1005.json