# Tagging a file using an S3 access point
<a name="add-tag-set-ap"></a>

The following `put-object-tagging` example command shows how you can use the Amazon CLI to add a tag-set through an access point. Each tag is a key-value pair. For more information, see [Categorizing your storage using tags](https://docs.amazonaws.cn/AmazonS3/latest/userguide/object-tagging.html) in the *Amazon Simple Storage Service User Guide*.

The example adds a tag-set to the existing file `my-image.jpg` using the access point *`my-ontap-ap`*.

```
$ aws s3api put-object-tagging --bucket my-ontap-ap-hrzrlukc5m36ft7okagglf3gmwluquse1b-ext-s3alias --key my-image.jpg --tagging TagSet=[{Key="finance",Value="true"}] 
```

You can also use the REST API to add a tag-set to an object through an access point. For more information, see [https://docs.amazonaws.cn/AmazonS3/latest/API/API_PutObjectTagging.html](https://docs.amazonaws.cn/AmazonS3/latest/API/API_PutObjectTagging.html) in the *Amazon Simple Storage Service API Reference*.