Querying All Device Groups

Function

URI

GET /v2/{project_id}/link/instances/{instance_id}/device-groups

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference. Minimum: 0 Maximum: 32
instance_id	Yes	String	Instance ID. Minimum: 0 Maximum: 36

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
app_id	Yes	String	Application ID. Minimum: 0 Maximum: 36

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header). Minimum: 1 Maximum: 100000

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
size	Integer	Number of records displayed on each page. Minimum: 1 Maximum: 9999
items	Array of GroupTreeResponse objects	Device group information.

**Table 5** GroupTreeResponse
Parameter	Type	Description
id	Integer	Group ID Minimum: 1 Maximum: 99999999
name	String	Group name. Minimum: 0 Maximum: 200
parent_id	Integer	Parent group ID. Minimum: 1 Maximum: 99999999
children	Array of GroupTreeResponse objects	Child group.

Status code: 400

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Status code: 404

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Status code: 500

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	System error code, which is the detailed error code of HTTP error codes 4xx and 5xx. Minimum: 0 Maximum: 64
error_msg	String	Error description. Minimum: 0 Maximum: 200
request_id	String	Message ID. Minimum: 0 Maximum: 64

Example Requests

GET /{project_id}/link/instances/{instance_id}/device-groups

Example Responses

Status code: 200

{
  "size" : 1,
  "items" : [ {
    "id" : 14,
    "name" : "group_name",
    "parent_id" : 0,
    "children" : [ ]
  } ]
}

Status code: 400

Bad Request

{
  "error_code" : "SCB.00000000",
  "error_msg" : "Parameter is not valid for operation [romalink.link-device-groups.selectGroupNodeTree]. Parameter is [app_id]. Processor is [query].",
  "request_id" : "cb39e78a-afd3-4e04-901d-70468b1c23dc-1619602712496-cnnorth7a-P-romalink-service01"
}

Status code: 404

Not Found

{
  "error_code" : "SCB.00000000",
  "error_msg" : "Not Found",
  "request_id" : "624c8be1-39b6-47b7-941d-c159aced368a-1619602544650-cnnorth7a-P-romalink-service01"
}

Status code: 500

Internal Server Error

{
  "error_code" : "ROMA.00110002",
  "error_msg" : "The instance does not exist. project_id: 397cd10b30544c588b2f4a56d83856c4, instance_id: f3bb386a-23ec-47aa-9943-4c60ac658611",
  "request_id" : "c8c06d0a-be92-4fdf-9d10-bc20131ab158-1619593104919-cnnorth7a-P-romalink-service01"
}