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

Changing the Connection Pool Type of a Proxy Instance

Function

This API is used to change the connection pool type of a proxy instance. Before calling this API:

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

URI

PUT /v3/{project_id}/instances/{instance_id}/proxy/{proxy_id}/connection-pool-type

**Table 1** URI parameters
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
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. Constraints N/A Range The value contains 36 characters with a suffix of in07. Only letters and digits are allowed. Default Value N/A
proxy_id	Yes	String	Definition Proxy instance ID, which is compliant with the UUID format. Constraints N/A Range The value contains 36 characters with a suffix of po01. 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
connection_pool_type	Yes	String	Definition Connection pool type. Constraints N/A Range CLOSED: The connection pool is closed. SESSION: The session-level connection pool is enabled. Default Value N/A

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
job_id	String	Definition Task ID. Range N/A

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

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

Example Request

Enabling the session connection pool for a proxy instance

PUT https://{endpoint}/v3/054e292c9880d4992f02c0196d3ea468/instance/af315b8e6aaa41799bd9a31f2de15abcin07/proxy/5881e1ca66af4aefbc64dc2874e55b3fpo01/connection-pool-type
{ 
  "connection_pool_type" : "SESSION" 
}

Example Response

Status code: 200

Success.

{ 
  "job_id" : "a4217ac4-12cd-4fb3-acfc-db4a4a1896ea" 
}

Status Code

For details, see Status Codes.

Error Code

For details, see Error Codes.

Parent topic: Database Proxy