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APIs

CreateDataTransform

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Last updated: 2026-06-10 15:02:14

1. API Description

Domain name for API request: cls.intl.tencentcloudapi.com.

This API is used to create a data processing task.

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 Name Required Type Description
Action Yes String Common Params. The value used for this API: CreateDataTransform.
Version Yes String Common Params. The value used for this API: 2020-10-16.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
FuncType Yes Integer Task type. 1: Specify topic; 2: Dynamic creation. For details, please refer to Creating Processing Task Document (https://www.tencentcloud.com/document/product/614/63940?from_cn_redirect=1).
SrcTopicId Yes String Log topic ID
-Obtain the log topic Id through Get Log Topic List.
Name Yes String Processing task name
Name limit
-Cannot be an empty string
-Cannot contain character '
EtlContent Yes String Processing statement. When FuncType is 2, EtlContent must use log_auto_output.

Other reference documents

-Create a processing task
-Function overview
TaskType Yes Integer Processing type.
1: Process preview using random data from the source log topic; 2: Process preview using user-defined test data; 3: Create real processing tasks.
DstResources.N No Array of DataTransformResouceInfo Target topic_id and alias of the processing task. This parameter is required when FuncType=1, and not required when FuncType=2.
Target topic_id. Obtain the log topic Id through Get Log Topic List.
Alias limitation: 1. Cannot be an empty string. 2. Cannot contain the character '
EnableFlag No Integer Task status. Valid values: 1 (enabled) and 2 (disabled).
PreviewLogStatistics.N No Array of PreviewLogStatistic Test data for preview processing results
Obtain the target log topic ID through Get Log Topic List.
BackupGiveUpData No Boolean When FuncType is 2, whether to discard data if the count of dynamically created logsets and log topics exceeds product specification limits, default false.

false: Create a fallback logset and log topic and write to fallback topic.
true: Discard log data.
HasServicesLog No Integer Whether to enable service log shipping. Valid values: 1: disable; 2: enable.
DataTransformType No Integer Data processing type. Valid values: 0: standard processing task; 1: pre-processing task. A pre-processing task can process the collected logs and then write them into a log topic.
KeepFailureLog No Integer Log status of failed jobs, 1: not retain (default), 2: retain.
FailureLogKey No String Field name of a failed log.
ProcessFromTimestamp No Integer Specify the start time of data processing, a Unix second-level timestamp.
-For any time range within the log topic lifecycle, if it exceeds the lifecycle, only process the part with data within the lifecycle.
ProcessToTimestamp No Integer Specify the end time of data processing, a Unix second-level timestamp.

-Cannot specify a future time
-Leave blank to run constantly
TaskId No String Preview a task (TaskType is 1 or 2) that is already created and used the capacity to associate with external data. This parameter is required.
Data processing task ID - Search the data processing task list basic information (https://www.tencentcloud.com/document/product/614/72182?from_cn_redirect=1) to get the data processing task ID.
DataTransformSqlDataSources.N No Array of DataTransformSqlDataSource Associated data source information
EnvInfos.N No Array of EnvInfo Set environment variable

3. Output Parameters

Parameter Name Type Description
TaskId String Task ID
RequestId String The 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 Creating a data processing task

Data processing provides the capacity to filter, clean, mask, enrich, and distribute log data, comparable to the open-source component Logstash. Using the data processing DSL (Domain Specified Language) function, with the underlying layer implemented based on Flink, you can easily handle log stream data.

Input Example

POST / HTTP/1.1
Host: cls.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: CreateDataTransform
<Common request parameters>

{
    "EnableFlag": 1,
"Name": "Data processing task"
    "FuncType": 0,
    "PreviewLogStatistics": [
        {
            "LineNum": 0,
            "FailReason": "errorcode",
            "DstTopicId": "81sdqwe5-e39e-4a1e-b2d4-a778df97d825",
            "LogContent": "{\"test\":\"demo\"}",
            "Time": "2017-08-08 12:12:12"
        }
    ],
    "SrcTopicId": "181d630d-3116-40cf-a12b-597be5e83edd",
    "TaskType": 0,
    "DstResources": [
        {
            "TopicId": "adfe19a8-6dad-44a6-9e48-24984ea74108",
"Alias": "alias"
        }
    ],
    "EtlContent": "fields_set(\"hello\",\"world\")"
}

Output Example

{
    "Response": {
        "TaskId": "a3622556-6402-4942-b4ff-5ae32ec29810",
        "RequestId": "6ef60bec-0242-43af-bb20-270359fb54a7"
    }
}

5. Developer Resources

SDK

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 Code Description
FailedOperation Operation failed.
FailedOperation.Timeout Operation timed out
InternalError Internal error.
InvalidParameter Incorrect parameter.
InvalidParameter.CrossAccountConflict Cross-account identifier error
InvalidParameter.DataFromTaskConflict There is a data processing task conflict.
InvalidParameter.InvalidEtlContent The data processing statement is invalid.
MissingParameter Missing parameter.
OperationDenied Operation denied.
OperationDenied.ACLFailed ACL verification failed.
OperationDenied.AccountDestroy The account has been terminated.
OperationDenied.AccountIsolate The account has overdue payments.
OperationDenied.AccountNotExists The account does not exist.
ResourceNotFound The resource does not exist.
ResourceNotFound.TopicNotExist The log topic does not exist.

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