doc-exports/docs/ddm/api-ref/ddm_api_01_0015.html

Querying DDM Engine Information

Function

This API is used to query engines that DDM supports.

Constraints

None

URI

GET /v2/{project_id}/engines?offset={offset}&limit={limit}

Table 1 Path parameters

Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID of a tenant in a region

Table 2 Query parameters

Parameter	Mandatory	Type	Description
offset	No	Integer	Index offset. The query starts from the next piece of data indexed by this parameter. The value is 0 by default. The value must be a positive integer.
limit	No	Integer	A maximum of engines to be queried. Value range: 1 to 128. If the parameter value is not specified, 10 engines are queried by default.

Request Parameters

Table 3 Request header parameters

Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter	Type	Description
engineGroups	Array of EngineGroupsInfo objects	Information of available engines
offset	Integer	Which page the server starts returning items
limit	Integer	Number of records displayed on each page
total	Integer	Number of engine versions

Table 5 EngineGroupsInfo

Parameter	Type	Description
id	String	Engine ID
name	String	Engine name
version	String	Engine version
supportAzs	Array of SupportAzsInfo objects	AZs

Table 6 SupportAzsInfo

Parameter	Type	Description
code	String	AZ code
name	String	AZ name
favored	Boolean	Whether the current AZ is supported

Status code: 400

Table 7 Response body parameters

Parameter	Type	Description
errCode	String	Service error code
externalMessage	String	Error message

Status code: 500

Table 8 Response body parameters

Parameter	Type	Description
errCode	String	Service error code
externalMessage	String	Error message

Example Request

GET https://{endpoint}/v2/{project_id}/engines?offset={offset}&limit={limit}

Example Response

Status code: 200

OK

{
  "engineGroups" : [ {
    "id" : "b6907aa2-aacb-3ac9-9782-b90b152d456c",
    "name" : "ddm",
    "version" : "3.0.8",
    "supportAzs" : [ {
      "code" : "az1",
      "name" : "az1",
      "favored" : false
    }, {
      "code" : "az2",
      "name" : "az2",
      "favored" : true
    } ]
  } ],
  "offset" : 0,
  "limit" : 128,
  "total" : 1
}

Status code: 400

bad request

{
  "externalMessage" : "Parameter error.",
  "errCode" : "DBS.280001"
}

Status code: 500

server error

{
  "externalMessage" : "Server failure.",
  "errCode" : "DBS.200412"
}

Status Codes

Status Code	Description
200	OK
400	bad request
500	server error

Error Codes

For details, see Error Codes.

Parent topic: DDM Instances