This API is used to apply a parameter template to one or more instances.

This API supports GaussDB(for Cassandra) instances.

This API is an asynchronous API. A successful response does not indicate that the parameter template is successfully applied.

PUT https://{Endpoint}/v3/{project_id}/configurations/{config_id}/apply

**Table 1** Path 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.
config_id	Yes	String	Parameter template ID

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
instance_ids	Yes	Array of strings	Instance IDs

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
job_id	String	ID of the asynchronous task that applies the parameter template
success	Boolean	Whether the task for applying the parameter template is successfully submitted. The value can be: true, indicating the task is successfully submitted. false, indicating the task fails to be submitted.

URI example

PUT https://{Endpoint}/v3/375d8d8fad1f43039e23d3b6c0f60a19/configurations/e02e76567ae04662a2753492b77f965bpr06/apply

Applying a Parameter Template

{
  "instance_ids" : [ "73ea2bf70c73497f89ee0ad4ee008aa2in06" ]
}

Status code: 200

Success

{
  "job_id" : "463b4b58-d0e8-4e2b-9560-5dea4552fde9",
  "success" : true
}

For details, see Status Codes.

For details, see Error Codes.