Updated on 2025-08-18 GMT+08:00

Querying DB Engines

Function

This API is used to query DB engines. Before calling this API:

Learn how to authenticate this API.

URI

GET https://{Endpoint}/v3.1/{project_id}/datastores

**Table 1** Parameter description
Name	Mandatory	Description
project_id	Yes	Explanation: Project ID of a tenant in a region. For details about how to obtain the value, see Obtaining a Project ID. Restrictions: None Value range: The value can contain 32 characters. Only letters and digits are allowed. Default value: None

Request Parameters

None

Response Parameters

**Table 2** Parameter description
Name	Type	Description
datastores	Array of objects	DB engines. For details, see Table 3.

**Table 3** dataStores field data structure description
Parameter	Type	Description
supported_versions	Array of strings	Engine versions supported by the deployment model.
instance_mode	String	Deployment model. Value: ha: centralized

Example Request

Querying DB engines

GET https://gaussdb-opengauss.eu-west-101.myhuaweicloud.eu/v3.1/0483b6b16e954cb88930a360d2c4e663/datastores

Example Response

DB engines queried.

{
	"datastores": [
		{
			
			"supported_versions": [
				"V2.0-2.0",
				"V2.0-2.3",
				"V2.0-2.6",
				"V2.0-2.9"
			],
                        "instance_mode": "ha"
		}
	]
}

Status Code

Normal
200
Abnormal
For details, see Status Codes.

Error Code

For details, see Error Codes.

Parent topic: DB Engine Versions and Specifications