Last updated: 2022-01-18 17:05:40

1. API Description

Domain name for API request:

This API is used to create a flow log.

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.
This document describes the parameters for Signature V1. It's recommended to use the V3 signature, which provides higher security. Note that for Signature V3, the common parameters need to be placed in the HTTP Header. See details.

Parameter Name Required Type Description
Action Yes String Common parameter. The value used for this API: CreateFlowLog.
Version Yes String Common parameter. The value used for this API: 2017-03-12.
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
FlowLogName Yes String The name of the flow log instance.
ResourceType Yes String The type of resource associated with the flow log. Valid values: VPC, SUBNET, NETWORKINTERFACE, and CCN.
ResourceId Yes String The unique ID of the resource.
TrafficType Yes String Type of the flow logs to be collected. Valid values: ACCEPT, REJECT and ALL.
CloudLogId Yes String The storage ID of the flow log.
VpcId No String The VPC ID or unique ID of the resource. We recommend using the unique ID. This parameter is required unless the ResourceType is set to CCN.
FlowLogDescription No String The description of the flow log instance
Tags.N No Array of Tag Bound tags, such as [{"Key": "city", "Value": "shanghai"}]

3. Output Parameters

Parameter Name Type Description
FlowLog Array of FlowLog The information of the flow log created.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Creating a flow log

Input Example
&<Common request parameters>

Output Example

  "Response": {
    "FlowLog": [
        "VpcId": "vpc-pq9vxykj",
        "FlowLogId": "fl-f42uhpkj",
        "FlowLogName": "test",
        "ResourceType": "NETWORKINTERFACE",
        "ResourceId": "eni-78ysaex1",
        "TrafficType": "ACCEPT",
        "CloudLogId": "dfb8f1a2-8522-47c1-8571-67905167ab3f",
        "CloudLogState": "",
        "FlowLogDescription": "",
        "TagSet": [
            "Key": "city",
            "Value": "shanghai"
        "CreatedTime": "0000-00-00 00:00:00"
    "RequestId": "404428db-f850-40c2-803"

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 Code Description
InvalidParameterValue.Duplicate The input parameter already exists.
InvalidParameterValue.Empty Missing parameters.
InvalidParameterValue.Malformed Invalid input parameter format.
InvalidParameterValue.Range The parameter value is not in the specified range.
LimitExceeded Quota limit is reached.
ResourceNotFound The resource does not exist.
UnauthorizedOperation Unauthorized operation.