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Updated at: Feb 24, 2022 GMT+08:00

Creating a Device Group

Typical Scenario

An NA can call this API to create device groups on the IoT platform, and allocate devices to different device groups for group management. A device can be bound to multiple device groups.

When the NA needs to perform operations on devices (such as upgrading device software and firmware or delivering commands to devices in batches), the NA can select devices to be operated by device group.

API Function

This API is used by an NA to create device groups on the IoT platform to manage devices by group.

API Description

1
public function createDeviceGroup($cdgInDTO, $accessToken)

Parameter Description

Parameter

Mandatory or Optional

Location

Description

$cdgInDTO

Mandatory

body

For details, see CreateDeviceGroupInDTO structure.

$accessToken

Mandatory

header

This parameter is set to the value of the access token obtained by calling the Authentication API.

CreateDeviceGroupInDTO

Parameter

Mandatory or Optional

Location

Description

$name

Mandatory

body

Indicates the device group name. The value can contain only uppercase and lowercase letters and digits.

$description

Optional

body

Indicates the device group description.

$appId

Optional

body

If the device belongs to the current application, set this parameter to null. Otherwise, set this parameter to the ID of the authorized application.

$maxDevNum

Optional

body

Indicates the maximum number of devices in a device group. The default value is 0. If the value is 0, the number of devices is not limited.

$deviceIds

Optional

body

Identifies the devices to be added to the device group.

id

Optional

body

Identifies a device group.

Response Parameters

StatusCode: 200 ok

CreateDeviceGroupOutDTO

Parameter

Description

$name

Indicates the device group name. The value can contain only uppercase and lowercase letters and digits.

$description

Indicates the device group description.

$id

Identifies a device group. The device group ID is automatically generated by the IoT platform.

$appId

Uniquely identifies an NA.

$maxDevNum

Indicates the maximum number of devices in the device group. If the value is 0, the number of devices is not limited.

curDevNum

Indicates the current number of devices in the device group.

deviceIds

Identifies the devices to be added to the device group.

Error Codes

HTTP Status Code

Error Code

Error Description

Remarks

200

100203

The application is not existed.

The application does not exist.

Recommended handling:

  • Check whether appId carried in the HTTP request header is correct.
  • Check whether appId in the request path (URL) is correct.

200

100217

The application hasn't been authorized.

The application has not been authorized.

Recommended handling: In scenarios where applications are not authorized, ensure that request parameter appId is null.

200

100602

The device group name has been used.

The device group name exists.

Recommended handling: Change the device group name in the API request.

200

100607

The devGroup has reached the limit.

The number of device groups reaches the limit.

Recommended handling: Check whether the number of created device groups reaches the upper limit specified in the license.

400

100609

Too much devices to add.

Too many devices are added to the device group.

Recommended handling: Ensure that the number of device IDs contained in deviceIds is within the range specified by maxDevNum.

400

50400

The input is invalid.

An input parameter is invalid.

Recommended handling: Check whether parameters carried in the API call request are valid.

403

1010009

app throttle exceed.

The NA calls the API at a frequency that exceeds the flow control threshold (100 calls per minute by default).

Recommended handling: Contact IoT platform maintenance personnel to adjust the flow control threshold or control the API call frequency.

403

1010005

App_key or access_token is invalid.

The access token is invalid.

Recommended handling: Check whether accessToken carried in the API request is correct.

500

50252

Internal server error.

An internal server error occurs.

Recommended handling: An internal error occurs on the IoT platform. Contact IoT platform maintenance personnel.

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