When you PUT an object in a versioning-enabled bucket, the noncurrent version is not overwritten. The following figure shows that when a new version of `spark.csv` is PUT into a bucket that already contains an object with the same name, the original object (ID = `ede336f2`) remains in the bucket, MinIO generates a new version (ID = `fae684da`), and adds the newer version to the bucket.

2016/10/12 06:51:26 Connected
2016/10/12 06:51:26 Subscribing to subject 'bucketevents'

![put](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/replication/PUT_bucket_replication.png)

![head](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/replication/HEAD_bucket_replication.png)

## Replica Modification sync

WORM on a bucket is enabled by setting object lock configuration. This configuration is applied to all the objects in the bucket. Below is an example to set `Governance` mode and one day retention time on `mybucket`.

```sh
awscli s3api put-object-lock-configuration --bucket mybucket --object-lock-configuration 'ObjectLockEnabled=\"Enabled\",Rule={DefaultRetention={Mode=\"GOVERNANCE\",Days=1}}'
```

### Set object lock

=====================

curl4j is a simple cUrl-like Java client.

## Version

[Versions in Maven Repository](https://repo1.maven.org/maven2/org/codelibs/curl4j/)

## Using Maven

Put the following block into pom.xml if using Maven:

    <dependency>
        <groupId>org.codelibs</groupId>
        <artifactId>curl4j</artifactId>
        <version>1.0.0</version>

Currently supported `FTP/SFTP` operations are as follows:

| ftp-client commands | supported |
|:-------------------:|:----------|
| get                 | yes       |
| put                 | yes       |
| ls                  | yes       |
| mkdir               | yes       |
| rmdir               | yes       |
| delete              | yes       |
| append              | no        |

    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.
* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
    * If it is not, the client will see a useful, clear error.

 | `application/x-xz`       |

All files with these extensions and mime types are excluded from compression,
even if compression is enabled for all types.

## To test the setup

To test this setup, practice put calls to the server using `mc` and use `mc ls` on
the data directory to view the size of the object.

## Explore Further

- [Use `mc` with MinIO Server](https://min.io/docs/minio/linux/reference/minio-mc.html)