Obtaining Parameter Information of a Specified DB Instance

Function

This API is used to obtain parameter information of a specified DB instance. Before calling this API:

Learn how to authorize and authenticate it.
Obtain the required region and endpoint.

URI

GET /v3/{project_id}/instances/{instance_id}/configurations

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID.
instance_id	Yes	String	Instance ID, which is compliant with the UUID format.

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
offset	No	Integer	Index offset. If offset is set to N, the resource query starts from the N+1 piece of data. The value is 0 by default, indicating that the query starts from the first piece of data. The value cannot be a negative number.
limit	No	Integer	Number of records to be queried. The default value is 100. The value must be a positive integer. The minimum value is 1 and the maximum value is 100.

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. If the following response body is returned for calling the API used to obtain a user token, the request is successful. After the request is processed, the value of X-Subject-Token in the message header is the token value.
X-Language	No	String	Request language type. The default value is en-us. Value: en-us zh-cn

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
configurations	ParameterConfigurationInfo object	Parameter information.
total_count	Long	Total number of parameters.
parameter_values	Array of ParameterValuesInfo objects	Parameter object.

**Table 5** ParameterConfigurationInfo
Parameter	Type	Description
datastore_version_name	String	DB version name.
datastore_name	String	Database name.
created	String	Creation time in the "yyyy-mm-ddThh:mm:ssZ" format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. For example, if the time zone offset is one hour, the value of Z is +0100.
updated	String	Update time in the "yyyy-mm-ddThh:mm:ssZ" format. T is the separator between the calendar and the hourly notation of time. Z indicates the time zone offset. For example, if the time zone offset is one hour, the value of Z is +0100.

**Table 6** ParameterValuesInfo
Parameter	Type	Description
name	String	Parameter name.
value	String	Parameter value.
restart_required	Boolean	Whether the instance needs to be rebooted. false: The instance does not need to be rebooted. true: The instance needs to be rebooted.
readonly	Boolean	Whether the instance is read-only false: The instance is read-only. true: The instance is not read-only.
value_range	String	Parameter value range. If the parameter type is integer, the value is 0 or 1. If the parameter type is boolean, the value is true or false.
type	String	Parameter type. string integer boolean list float
description	String	Parameter description.

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Obtaining parameter information of a specified DB instance

GET https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/instances/61a4ea66210545909d74a05c27a7179ein07/configurations

Example Response

Status code: 200

Success.

{
  "configurations" : {
    "datastore_version_name" : 2.0,
    "datastore_name" : "taurus",
    "created" : "2022-10-29T09:38:36+0000",
    "updated" : "2022-10-29T09:38:36+0000"
  },
  "total_count" : 125,
  "parameter_values" : [ {
    "name" : "auto_increment_increment",
    "value" : 1,
    "restart_required" : false,
    "readonly" : false,
    "value_range" : "1-65535",
    "type" : "integer",
...."description": auto_increment_increment and auto_increment_offset are used for master-to-master replication and to control the operations of the AUTO_INCREMENT column.
  }, {
    "name" : "auto_increment_offset",
    "value" : 1,
    "restart_required" : false,
    "readonly" : false,
    "value_range" : "1-65535",
    "type" : "integer",
...."description": auto_increment_increment and auto_increment_offset are used for master-to-master replication and to control the operations of the AUTO_INCREMENT column.
  } ]
}