Help Center/ Distributed Database Middleware/ API Reference/ APIs (Recommended)/ DDM Instances/ Querying DDM Engine Information
Updated on 2022-09-15 GMT+08:00
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Querying DDM Engine Information

Function

This API is used to query information about DDM engine.

Constraints

None

URI

GET /v2/{project_id}/engines

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

Which page the server starts returning items. The start value cannot be less than 0. The default value is 0.

Minimum value: 0

limit

No

Integer

Number of records displayed on each page. The value is greater than 0 and not greater than 128. The default value is 128.

Minimum value: 1

Maximum value: 128

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

Example Response

Status code: 200

OK

{
  "engineGroups" : [ {
    "id" : "b6907aa2-aacb-3ac9-9782-b90b152d456c,",
    "name" : "ddm,",
    "version" : "3.0.8,",
    "supportAzs" : [ {
      "code" : "az1xahz,",
      "name" : "az1xahz,",
      "favored" : false
    }, {
      "code" : "az2xahz,",
      "name" : "az2xahz,",
      "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