tencent cloud



Last updated: 2022-05-05 15:27:17

    1. API Description

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

    This API is used to get the list of modifiable parameters of an instance.

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

    We recommend you to use API Explorer
    Try it
    API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

    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: DescribeDBInstanceParameters.
    Version Yes String Common Params. The value used for this API: 2017-03-12.
    Region Yes String Common Params. For more information, please see the list of regions supported by the product.
    DBInstanceId Yes String Instance ID
    ParamName No String Name of the parameter to be queried. If ParamName is left empty or not passed in, the list of all parameters will be returned.

    3. Output Parameters

    Parameter Name Type Description
    TotalCount Integer Total number of the parameters in the returned list
    Detail Array of ParamInfo Details of the returned parameter list
    RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

    4. Example

    Example1 Getting the list of modifiable parameters of an instance

    This example shows you how to get the list of modifiable parameters of an instance.

    Input Example

    POST / HTTP/1.1
    Host: postgres.tencentcloudapi.com
    Content-Type: application/json
    X-TC-Action: DescribeDBInstanceParameters
    <Common request parameters>
      "DBInstanceId": "xx",
      "ParamName": "default_transaction_read_only"

    Output Example

    "Response": {
      "Detail": [
          "Advanced": true,
          "ClassificationCN": "Client Connection Defaults",
          "ClassificationEN": "Sets the default read-only status of new transactions.",
          "CurrentValue": "",
          "DefaultValue": "off",
          "EnumValue": [
          "ID": 59,
          "LastModifyTime": "",
          "Max": 0,
          "Min": 0,
          "Name": "default_transaction_read_only",
          "NeedReboot": false,
          "ParamDescriptionEN": "Sets the default read-only status of new transactions.",
          "ParamValueType": "bool",
          "SpecRelated": false,
          "Unit": ""
      "RequestId": "",
      "TotalCount": 1

    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
    FailedOperation.CamAuthFailed CAM authentication failed.
    FailedOperation.FailedOperationError Operation failed. Please try again later.
    InvalidParameterValue.InvalidParameterValueError Incorrect parameter value
    OperationDenied.CamDeniedError This operation cannot be performed.
    ResourceNotFound.InstanceNotFoundError The instance does not exist.
    UnknownError Unknown error. When this error occurs, please contact customer service for assistance.
    Contact Us

    Contact our sales team or business advisors to help your business.

    Technical Support

    Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

    7x24 Phone Support