doc-exports/docs/rds/api-ref/rds_11_0014.html

Obtaining the Value of a Specified Parameter for an Instance

Function

This API is used to obtain the value of a specified parameter for an instance.

• Before calling an API, you need to understand the API in Authentication.
• Before calling this API, obtain the required region and endpoint.

Constraints

• This operation cannot be performed when the instance is in the abnormal state.
• Only the value of shared_preload_libraries can be queried.

URI

• URI format

  GET /v3/{project_id}/instances/{instance_id}/parameter/{name}

• Parameter description

  Table 1 Parameters

  Parameter	Mandatory	Description
  project_id	Yes	Specifies the project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID.
  instance_id	Yes	Specifies the DB instance ID.
  name	Yes	Parameter name. Only the shared_preload_libraries parameter can be modified. The default value is shared_preload_libraries.

Request

• Request parameters

  Table 2 Request header parameters

  Parameter	Mandatory	Type	Description
  X-Auth-Token	Yes	String	Specifies the user token. The user token is a response to the API used to obtain a user token.

• Example

  GET https://rds.eu-de.otc.t-systems.com/v3/0483b6b16e954cb88930a360d2c4e663/instances/f569f1358436479dbcba8603c32cc4aein03/parameter/shared_preload_libraries

Response

• Normal response

  Table 3 Parameters

  Parameter	Type	Description
  name	String	Parameter name.
  value	String	Parameter value.
  restart_required	Boolean	Whether a reboot is required. true: A reboot is required. false: A reboot is not required.
  value_range	String	Parameter value range. If the parameter type is integer, the value is 0 or 1. If the type is boolean, the value is true or false.
  type	String	Parameter type. The value can be string, integer, boolean, list, or float.
  description	String	Parameter description.

• Example normal response

  {
    "name" : "shared_preload_libraries",  
    "value" : "passwordcheck.so,pg_sql_history",  
    "restart_required" : true,  
    "value_range" : "passwordcheck.so,pg_stat_statements,pg_sql_history",  
    "type" : "list",  
    "description" : "Lists shared libraries to preload into server."  
  }

• Abnormal response

  For details, see Abnormal Request Results.

Status Code

• Normal

  200

• Abnormal

  For details, see Status Codes.

Error Code

For details, see Error Codes.

Parent topic: Extension Management (RDS for PostgreSQL)