Updated on 2023-06-29 GMT+08:00

Querying Device Details

Function

Querying Device Details

URI

GET /v2/{project_id}/link/instances/{instance_id}/devices/{device_id}

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

device_id

Yes

Integer

Device ID.

Minimum: 0

Maximum: 99999999999999999

Request Parameters

Table 2 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 3 Response body parameters

Parameter

Type

Description

permissions

Array of strings

Permission.

id

Integer

Device ID.

Minimum: 1

Maximum: 99999999999999999

device_id

Integer

Device ID (compatible with 20.0).

Minimum: 1

Maximum: 99999999999999999

parent_device_id

Integer

Parent device ID.

Minimum: 1

Maximum: 99999999999999999

parent_device_name

String

Parent device name.

Minimum: 2

Maximum: 64

product

ProductReferer object

Product.

device_name

String

Device name. The value is a string of 2 to 64 characters, which can contain letters, digits, and the following special characters: ()_,#.?''-@%&!,

Minimum: 2

Maximum: 64

instance_id

String

Instance ID.

Minimum: 2

Maximum: 64

client_id

String

Client ID, which is the unique device ID generated by the ROMA platform.

Minimum: 0

Maximum: 32

node_id

String

Physical number of a device. The value is a string of 2 to 64 characters, which can contain only letters, digits, underscores (_), and hyphens (-). Generally, the MAC address or IMEI is used.

Minimum: 2

Maximum: 64

app_name

String

Application name.

Minimum: 0

Maximum: 256

status

Integer

Device status. The options are as follows: 0: enabled; 1: disabled.

Minimum: 0

Maximum: 10

online_status

Integer

Connection status. The options are as follows: 0: disconnected; 1: online; 2: offline.

Minimum: 0

Maximum: 10

description

String

Description.

Minimum: 0

Maximum: 200

authentication

Authentication object

Authentication.

created_user

CreatedUser object

Name of the user who created the attribute.

last_updated_user

LastUpdatedUser object

User who performed the last update.

tags

Array of strings

Tag.

Minimum: 1

Maximum: 64

created_datetime

Long

Creation start time. The format is timestamp(ms) and the UTC time zone is used.

Minimum: 1

Maximum: 99999999999999999

last_updated_datetime

Long

Last modification time (timestamp, in milliseconds). The UTC time zone is used.

Minimum: 1

Maximum: 99999999999999999

connect_address

String

Device access address.

Minimum: 0

Maximum: 200

ssl_connect_address

String

Device access SSL address.

Minimum: 0

Maximum: 200

ipv6_connect_address

String

IPv6 address for device access. This parameter is valid only when IPv6 is enabled.

Minimum: 0

Maximum: 200

ipv6_ssl_connect_address

String

IPv6 SSL address for device access. This parameter is valid only when IPv6 is enabled.

Minimum: 0

Maximum: 200

last_login_datetime

Long

Last login time.

Minimum: 1

Maximum: 99999999999999999

node_type

Integer

Node type. The options are as follows: 0: direct connection; 1: gateway; 2: subdevice.

Minimum: 1

Maximum: 99999999999999999

device_type

Integer

Device type. The options are as follows: [/topic/body/section/table/tgroup/tbody/row/entry/p/br {""}) (br]0: common device (without a child device or parent device); [/topic/body/section/table/tgroup/tbody/row/entry/p/br {""}) (br]1: gateway device (which can contain subdevices); [/topic/body/section/table/tgroup/tbody/row/entry/p/br {""}) (br]2: child device (belonging to a gateway device).

Minimum: 0

Maximum: 10

client_ip

String

Client IP address.

Minimum: 0

Maximum: 64

keep_alive

String

Heartbeat time.

Minimum: 0

Maximum: 200

last_active_time

Long

Last login time.

Minimum: 1

Maximum: 99999999999999999

version

String

Device version.

Minimum: 0

Maximum: 64

app_id

String

Application ID.

Minimum: 0

Maximum: 36

plugin_id

Integer

Plug-in ID, which is unique to modbus and opcua devices. The options are as follows: 1: modbus plug-in; 2: opcua plug-in.

Minimum: 1

Maximum: 2

Table 4 ProductReferer

Parameter

Type

Description

product_id

Integer

Product ID. The product ID is mandatory if the manufacturer ID and model are not set.

Minimum: 1

Maximum: 99999999999999999

product_name

String

Product name.

Minimum: 0

Maximum: 64

manufacturer_id

String

Manufacturer ID. If the product ID is not specified, the manufacturer ID and model are mandatory.

Minimum: 0

Maximum: 64

model

String

Model. If the product ID is not specified, the manufacturer ID and model are mandatory.

Minimum: 0

Maximum: 64

protocol_type

Integer

Protocol type of the product. 0: mqtt 1: CoAP 2: modbus 4: opcua 5: extended protocol

Minimum: 0

Maximum: 5

product_type

Integer

Product type. The options are as follows: 0: common; 1: gateway.

Minimum: 0

Maximum: 10

extend_protocol_name

String

Extended protocol name.

Minimum: 0

Maximum: 64

Table 5 Authentication

Parameter

Type

Description

user_name

String

One-model-one-secret or one-device-one-secret username.

Minimum: 0

Maximum: 64

password

String

One-model-one-secret or one-device-one-secret password. The password must contain 8 to 32 characters, including at least one digit, one uppercase letter, one lowercase letter, and one special character (~!@#$%^&*()-_=+|[{}];:<>/?).

Minimum: 0

Maximum: 64

Table 6 CreatedUser

Parameter

Type

Description

user_id

String

User ID (reserved).

Minimum: 0

Maximum: 64

user_name

String

Username.

Minimum: 0

Maximum: 64

Table 7 LastUpdatedUser

Parameter

Type

Description

user_id

String

User ID (reserved).

Minimum: 0

Maximum: 64

user_name

String

Username.

Minimum: 0

Maximum: 64

Status code: 400

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

Status code: 404

Table 9 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 10 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}/devices/{device_id}

Example Responses

Status code: 200

OK (If CoAP is used and the IP address returned is --, configure an ELB first.)

{
  "permissions" : [ "read", "access", "delete", "modify" ],
  "id" : 711537,
  "device_id" : 711537,
  "parent_device_id" : 711536,
  "parent_device_name" : "parent-device",
  "product" : {
    "product_id" : 116303,
    "product_name" : "p1",
    "manufacturer_id" : "p1",
    "model" : "p1",
    "product_type" : 0,
    "protocol_type" : 0
  },
  "device_name" : "device",
  "instance_id" : "8993a690-cf61-46af-880d-587d823d14e5",
  "client_id" : "D116303711537sGDtK",
  "node_id" : "string",
  "app_name" : "app",
  "status" : 0,
  "online_status" : 2,
  "description" : "device",
  "authentication" : {
    "user_name" : "F01A8D25FE6E4CF5A286B711B31888AE",
    "password" : "************************"
  },
  "created_user" : {
    "user_id" : "",
    "user_name" : "user"
  },
  "last_updated_user" : {
    "user_id" : "",
    "user_name" : "user"
  },
  "tags" : [ ],
  "created_datetime" : 1607408244841,
  "last_updated_datetime" : 1607422571094,
  "connect_address" : "xx.xx.xx.xx",
  "ssl_connect_address" : "xx.xx.xx.xx",
  "ipv6_connect_address" : "xx.xx.xx.xx",
  "ipv6_ssl_connect_address" : "xx.xx.xx.xx",
  "coap_connect_address" : "xx.xx.xx.xx",
  "coap_ssl_connect_address" : "xx.xx.xx.xx",
  "coap_ipv6_connect_address" : "xx.xx.xx.xx",
  "coap_ipv6_ssl_connect_address" : "xx.xx.xx.xx",
  "node_type" : 0,
  "device_type" : 0,
  "plugin_id" : 2,
  "app_id" : "cb4b3ec0-8f7f-432f-b05e-fc149d05da5d"
}

Status code: 400

Bad Request

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

Status code: 404

Not Found

{
  "error_code" : "ROMA.00110006",
  "error_msg" : "The resource does not exist. Check whether the resource ID 1 is correct.",
  "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"
}

Status Codes

Status Code

Description

200

OK (If CoAP is used and the IP address returned is --, configure an ELB first.)

400

Bad Request

404

Not Found

500

Internal Server Error

Error Codes

See Error Codes.