filter
Parameters
The filtering rules that determine for which objects to send notifications. For example, you can create a filter so that Amazon S3 sends notifications only when image files with a `.jpg`
extension are added to the bucket. Specifies object key name filtering rules. For information about key name filtering, see Configuring event notifications using object key name filtering in the Amazon S3 User Guide.
Parameters
The filtering rules that determine for which objects to send notifications. For example, you can create a filter so that Amazon S3 sends notifications only when image files with a `.jpg`
extension are added to the bucket. Specifies object key name filtering rules. For information about key name filtering, see Configuring event notifications using object key name filtering in the Amazon S3 User Guide.