Updated on 2026-03-16 GMT+08:00

Comparing Parameter Templates

Function

This API is used to compare two parameter templates. Before calling this API:

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

URI

POST /v3/{project_id}/configurations/comparison

**Table 1** URI parameter
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints N/A Range The value contains 32 characters. Only letters and digits are allowed. Default Value N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition User token. To obtain this value, call the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the token value. Constraints N/A Range N/A Default Value N/A
X-Language	No	String	Definition Request language type. Constraints N/A Range en-us zh-cn Default Value en-us

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
source_configuration_id	Yes	String	Definition ID of the source parameter template for comparison. Constraints N/A Range To obtain this value, see Querying Parameter Templates. After the request is processed, the value of id in the response body is the value of source_configuration_id. Default Value N/A
target_configuration_id	Yes	String	Definition ID of the target parameter template for comparison. Constraints N/A Range To obtain this value, see Querying Parameter Templates. After the request is processed, the value of id in the response body is the value of target_configuration_id. Default Value N/A

Response Parameters

Status code: 200

**Table 4** Response body parameter
Parameter	Type	Description
differences	Array of ParamGroupParameterDifferences objects	Definition Differences between parameters.

**Table 5** ParamGroupParameterDifferences
Parameter	Type	Description
parameter_name	String	Definition Parameter name. Range N/A
source_value	String	Definition Parameter value in the source parameter template. Range N/A
target_value	String	Definition Parameter value in the target parameter template. Range N/A

Status code: 400

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

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

Example Request

Comparing parameter templates

POST https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/configurations/comparison

{
  "source_configuration_id" : "a2069d40256f40078c52d90d6a91ee63pr07",
  "target_configuration_id" : "0cd8ef851dc4422f98e7717205ed13e6pr07"
}

Example Response

Status code: 200

Success.

{
  "differences" : [ {
    "parameter_name" : "innodb_purge_threads",
    "source_value" : 1,
    "target_value" : 4
  }, {
    "parameter_name" : "connect_timeout",
    "source_value" : 10,
    "target_value" : 20
  } ]
}

Status Code

For details, see Status Codes.

Error Code

For details, see Error Codes.

Parent topic: Parameter Template Management