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    ActionTrail:PutDataEventSelector

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    ActionTrail:PutDataEventSelector

    Last Updated:Mar 26, 2026

    Creates or configures a data event selector. A trail must exist before you create a data event selector. If a trail does not exist, you can call the CreateTrail operation to create one.

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    RAM authorization

    The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

    • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

    • API: The API that you can call to perform the action.

    • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

    • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

      • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

      • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

    • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

    • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

    Action

    Access level

    Resource type

    Condition key

    Dependent action

    actiontrail:PutDataEventSelector

    create

    *Trail

    acs:actiontrail:{#regionId}:{#accountId}:trail/{#TrailName}

    		 None None

    Request syntax

    GET  HTTP/1.1

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    TrailName

    string

    Yes

    The name of the trail.

    trail-name
    EventSelectors

    string

    Yes

    The configuration of the data event selector. This parameter is a JSON array that can contain a maximum of 20 elements.

    Each element in the JSON array includes the following fields:

    • ServiceName: The name of the Alibaba Cloud service that supports data events.

    • ReadWriteType: The type of data event. Valid values: Read, Write, and All.

    • EventName: This field contains the Equals and NotEquals subfields.

      For example, the following configuration specifies that only GetObject, CopyObject, and AppendObject events are delivered:

      {"EventName":{"Equals":["GetObject","CopyObject","AppendObject"]}}

      If you specify NotEquals, events other than GetObject, CopyObject, and AppendObject are delivered.

    • ResourceArn: This field also contains the Equals and NotEquals subfields, similar to EventName. For example:

      {"ResourceArn":{"Equals":[arn1,...,arnx]}}

    [{"EventName":{"Equals":["GetObject","CopyObject","AppendObject"]},"ReadWriteType":"All","ServiceName":"Oss"}]
    IsTrailAllRegion

    boolean

    No

    Specifies whether the trail tracks data events in all regions.

    Default value: false.

    true
    TrailRegionIds

    string

    No

    The regions where the trail tracks data events. Separate multiple region IDs with a comma (,).

    cn-shanghai,cn-hangzhou

    • The total number of values in the Equals and NotEquals subfields for EventName cannot exceed 10. The same limit applies to ResourceArn.

    • The TrailRegionIds parameter is required if you do not specify IsTrailAllRegion or set it to false.

    Response elements

    Element

    Type

    Description

    Example

    object

    The response parameters.

    DataEventSelectors

    string

    The configuration of the data event selector. This parameter is a JSON array that can contain a maximum of 20 elements.

    Each element in the JSON array includes the following fields:

    • ServiceName: The name of the Alibaba Cloud service that supports data events.

    • ReadWriteType: The type of data event. Valid values: Read, Write, and All.

    • EventName: This field contains the Equals and NotEquals subfields.

      For example, the following configuration specifies that only GetObject, CopyObject, and AppendObject events are delivered:

      {"EventName":{"Equals":["GetObject","CopyObject","AppendObject"]}}

      If you specify NotEquals, events other than GetObject, CopyObject, and AppendObject are delivered.

    • ResourceArn: This field also contains the Equals and NotEquals subfields, similar to EventName. For example:

      {"ResourceArn":{"Equals":[arn1,...,arnx]}}

    [{"EventName":{"Equals":["GetObject","CopyObject","AppendObject"]},"ReadWriteType":"All","ServiceName":"Oss"}]
    RequestId

    string

    The request ID.

    243E1250-32DA-493B-9347-3C7EEE07****
    TrailArn

    string

    The Alibaba Cloud Resource Name (ARN) of the trail.

    acs:actiontrail:cn-shanghai:159498693826****:trail/trail-name

    Examples

    Success response

    JSON format

    {
  "DataEventSelectors": "[{\"EventName\":{\"Equals\":[\"GetObject\",\"CopyObject\",\"AppendObject\"]},\"ReadWriteType\":\"All\",\"ServiceName\":\"Oss\"}]",
  "RequestId": "243E1250-32DA-493B-9347-3C7EEE07****",
  "TrailArn": "acs:actiontrail:cn-shanghai:159498693826****:trail/trail-name"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.