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Edge Security Acceleration:DescribePreloadTasks

Last Updated:Nov 07, 2025

Queries the details of prefetch tasks by time, task status, or prefetch URL.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
esa:DescribePreloadTasksget
*Site
acs:esa:{#regionId}:{#accountId}:site/{#SiteId}
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
SiteIdlongNo

The website ID. You can call the ListSites operation to obtain the ID.

123456789****
ContentstringNo

The content to prefetch. Exact match is supported.

http://a.com/1.jpg?b=2
PageNumberintegerNo

The page number. Valid values: 1 to 100000. Default value: 1.

1
PageSizeintegerNo

The number of entries per page. Default value: 20. Valid values: 1 to 50.

20
StartTimestringNo

The start time. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

2023-03-22T17:00:00Z
EndTimestringNo

The end time. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

Note The end time must be later than the start time.
2023-03-23T06:23:00Z
StatusstringNo

The task status. Valid values:

  • Complete: The task is complete.
  • Refreshing: The task is running.
  • Failed: The task failed.
Complete

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The request ID.

0AEDAF20-4DDF-4165-8750-47FF9C1929C9
PageNumberlong

The page number.

1
PageSizelong

The number of entries per page.

10
TotalCountlong

The total number of entries returned.

83
Tasksarray<object>

The tasks.

Taskobject
Statusstring

The task status.

  • Complete: The task is complete.
  • Refreshing: The task is in progress.
  • Failed: The task failed.
Complete
CreateTimestring

The time when the task was created.

2023-03-28 14:28:57
Processstring

The progress of the task, in percentage.

100%
Descriptionstring

The error message returned upon a prefetch task failure. Valid values:

  • Internal Error
  • Origin Timeout
  • Origin Return StatusCode 5XX
Internal Error
Contentstring

The prefetched content.

http://a.com/1.jpg?b=2
TaskIdstring

The ID of the queried task.

1597854579687428

Examples

Sample success responses

JSONformat

{
  "RequestId": "0AEDAF20-4DDF-4165-8750-47FF9C1929C9",
  "PageNumber": 1,
  "PageSize": 10,
  "TotalCount": 83,
  "Tasks": [
    {
      "Status": "Complete",
      "CreateTime": "2023-03-28 14:28:57",
      "Process": "100%",
      "Description": "Internal Error",
      "Content": "http://a.com/1.jpg?b=2",
      "TaskId": 1597854579687428
    }
  ]
}

Error codes

HTTP status codeError codeError messageDescription
400MissingTimeParameterThe StartTime and EndTime must be both specified.Please provide both a start time and an end time.
400InvalidEndTime.MismatchThe specified EndTime is earlier than the StartTime.The end time you entered is earlier than the start time. Please check and try again.
400DomainNameOverLimitA maximum of 500 domains are supported for each request.Only 500 domain names are supported at a time. Please reduce the number of domain names to request again.
400InvalidTimeThe query time cannot exceed the last 3 days.The query time cannot exceed the last 3 days.
400MissingParameter.ObjectTypeThe ObjectType parameter is required if DomainName or ObjectType is specified.Specify the ObjectType parameter.
400InvalidStationParameterThe specified Station is invalid.The specified node parameter is invalid.
400TooManyRequestsToo many requests.Please try again later.Requests are too frequent, please try again later.
400InvalidTaskId.MalformedThe specified taskId is invalid.The specified task ID is invalid.
400InvalidParameters.InvalidUrlsThe specified urls are invalid.The requested URL parameter is invalid.

For a list of error codes, visit the Service error codes.