Viewing Parameter Change History

Function

This API is used to view the parameter change history. Before calling this API:

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

URI

GET /v3/{project_id}/configurations/{configuration_id}/modify-history

**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.
configuration_id	Yes	String	Parameter template ID. To obtain this value, see Querying Details of a DB Instance. After the request is processed, the value of configuration_id in the response body is the value of configuration_id.

**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
total_count	Integer	Total number of records.
histories	Array of ParamGroupHistoryResponse objects	Change history of the parameter template.

**Table 5** ParamGroupHistoryResponse
Parameter	Type	Description
parameter_name	String	Parameter name.
old_value	String	Old parameter value.
new_value	String	New parameter value.
update_result	String	Update result.
is_applied	Boolean	Whether the changed template is applied. true: applied. false: not applied
updated	String	Time when the template was modified. The format is yyyy-mm-ddThh:mm:ssZ. 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.
applied	String	Time when the template was applied. The format is yyyy-mm-ddThh:mm:ssZ. 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.

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

Querying change history of a parameter template

GET https://{endpoint}/v3/0483b6b16e954cb88930a360d2c4e663/configurations/7625c6a12d884be1891c61d921e0e114pr07/modify-history

Example Response

Status code: 200

Success.

{
  "total_count" : 2,
  "histories" : [ {
    "parameter_name" : "binlog_rows_query_log_events",
    "old_value" : false,
    "new_value" : true,
    "update_result" : "SUCCESS",
    "is_applied" : true,
    "updated" : "2023-07-10T02:14:28+0000",
    "applied" : "2023-07-10T02:14:28+0000"
  }, {
    "parameter_name" : "block_encryption_mode",
    "old_value" : "aes-256-cbc",
    "new_value" : "aes-128-cfb1",
    "update_result" : "SUCCESS",
    "is_applied" : true,
    "updated" : "2023-07-10T02:14:28+0000",
    "applied" : "2023-07-10T02:14:28+0000"
  } ]
}