Querying Change History of a Parameter Template

Function

This API is used to query the change history of a parameter template. Before calling this API:

Learn how to authenticate this API.
Obtain the required region and endpoint.

URI

GET https://{Endpoint}/v3/{project_id}/configurations/{config_id}/histories

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
project_id	Yes	String	Explanation: Project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID. Restrictions: None Value range: The value can contain 32 characters. Only letters and digits are allowed. Default value: None
config_id	Yes	String	Parameter template ID.
offset	No	Integer	Index offset. If offset is set to N, the resource query starts from the N+1 data entry. The default value is 0, indicating that the query starts from the first data entry. The value cannot be a negative number. For example, if this parameter is set to 0 and limit is set to 10, only the 1st to 10th records are displayed.
limit	No	Integer	Number of records to be queried. The default value is 100. The value cannot be a negative number. The minimum value is 1 and the maximum value is 100. For example, if this parameter is set to 10, a maximum of 10 records can be displayed.

Request Parameters

None

Response Parameters

**Table 2** Parameter description
Parameter	Type	Description
histories	Array of objects	Parameter template information. For details, see Table 3.
total_count	Integer	Total number of records.

**Table 3** histories field data structure description
Parameter	Type	Description
parameter_name	String	Parameter name.
old_value	String	Old parameter value.
new_value	String	New parameter value.
update_result	String	Change status. SUCCESS FAILED
updated_at	String	Modification time in the "yyyy-mm-ddThh:mm:ssZ" format. T is the separator between calendar and hourly notation of time. Z indicates the time zone offset. For example, in the Beijing time zone, the offset is +0800.

Example Request

Querying the change history of a parameter template

GET https://gaussdb-opengauss.ap-southeast-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/configurations/3ca44134a16d4bbab8eb701e025b19f7pr14/histories

Example Response

Change history of the parameter template queried.

{ 
   "histories" : [ { 
     "parameter_name" : "audit_system_object", 
     "old_value" : "12295", 
     "new_value" : "12298", 
     "update_result" : "SUCCESS", 
     "updated_at" : "2022-08-09T03:06:52+0800" 
   } ], 
   "total_count" : 1 
 }