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1. API Description

Domain name for API request: teo.tencentcloudapi.com.

DescribePrefetchTasks is used to query the submission history and execution progress of preheating tasks. This interface can be used to query the tasks submitted by the CreatePrefetchTasks interface.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter NameRequiredTypeDescription
ActionYesStringCommon Params. The value used for this API: DescribePrefetchTasks.
VersionYesStringCommon Params. The value used for this API: 2022-09-01.
RegionNoStringCommon Params. This parameter is not required.
ZoneIdNoStringZoneId. The parameter is required.
StartTimeNoTimestamp ISO8601Start time of the query. Either time or job-id is required.
EndTimeNoTimestamp ISO8601End time of the query. Either time or job-id is required.
OffsetNoIntegerOffset for paginated queries. Default value: 0.
LimitNoIntegerLimit on paginated queries. Default value: 20. Maximum value: 1000.
Filters.NNoArray of AdvancedFilterFiltering condition. The maximum value of Filters.Values is 20. Detailed filtering conditions:
  • job-id
    Filter based on task ID. job-id format: 1379afjk91u32h. Multiple values are not supported, Fuzzy search is not supported.
  • target
    Filter based on target resource information. target format: http://www.qq.com/1.txt. Multiple values are not supported, Fuzzy search is not supported.
  • domains
    Filter based on domain name. domains format: www.qq.com. Fuzzy search is not supported.
  • statuses
    Filter based on task status. Fuzzy search is not supported. Options:
    processing: Processing
    success: Success
    failed: Failure
    timeout: Timeout
  • 3. Output Parameters

    Parameter NameTypeDescription
    TotalCountIntegerTotal entries that match the specified query condition.
    TasksArray of TaskList of tasks returned.
    RequestIdStringThe unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

    4. Example

    Example1 Querying Preheating Tasks

    After the preheating task is submitted by using CreatePrefetchTasks, use this API to query the preheating task records and execution progress.

    Input Example

    POST / HTTP/1.1
    Host: teo.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: DescribePrefetchTasks
    <Common request parameters>
        "ZoneId": "zone-z8m9mgx",
        "StartTime": "2022-02-09T00:00:00+08:00",
        "EndTime": "2022-02-09T23:59:00+08:00",
        "Limit": 1,
        "Offset": 7

    Output Example

        "Response": {
            "RequestId": "abc-afhhakf-24hkahf-2424",
            "Tasks": [
                    "JobId": "20g9wz8m9mgx",
                    "Status": "success",
                    "Target": "http://www.qq.com/a.txt",
                    "Type": "prefetch_url",
                    "CreateTime": "2022-02-09T02:28:43Z",
                    "UpdateTime": "2022-02-09T02:28:52Z"
            "TotalCount": 8

    5. Developer Resources


    TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

    Command Line Interface

    6. Error Code

    The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

    Error CodeDescription
    InternalErrorInternal error.
    InvalidParameter.ParameterErrorParameter error: Invalid “End time”. The interval between the start and end time cannot exceed 7 days.
    OperationDeniedOperation denied.
    UnauthorizedOperation.DomainEmptyAuthentication error.