Updated on 2026-01-29 GMT+08:00

Create a HarmonyOS Soft Bus

Function

This API is used by an application to create a HarmonyOS soft bus.

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

  • If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
  • If you are using identity policy-based authorization, the following identity policy-based permissions are required.

    Action

    Access Level

    Resource Type (*: required)

    Condition Key

    Alias

    Dependencies

    iotda:harmonysoftbus:create

    Write

    -

    g:EnterpriseProjectId

    -

    -

URI

POST /v5/iot/{project_id}/harmony-soft-bus

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Parameter description: project ID. For details, see Obtaining a Project ID.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

Instance-Id

No

String

Parameter description: instance ID. This parameter is required only when the API is called from the management plane in the physical multi-tenant scenario. Log in to the IoTDA console and choose Overview in the navigation pane to check the instance ID.

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

bus_name

No

String

Parameter description: Name of the HarmonyOS soft bus group, which must be unique in a resource space.

Value: The value can contain a maximum of 64 characters. Only letters, digits, and special characters (_?'#().,&%@!-) are allowed.

group_id

No

String

Parameter description: device group ID. The ID is unique and is allocated by the platform during device group creation.

app_id

No

String

Parameter description: resource space ID. This parameter is optional. If you have multiple resource spaces, you can use this parameter to specify the resource space to which the device group to create will belong. If this parameter is not specified, the device group to create will belong to the default resource space.

Value: The value can contain up to 36 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

Response Parameters

Status code: 201

Table 4 Response body parameters

Parameter

Type

Description

bus_id

String

Unique ID of a HarmonyOS soft bus, which is allocated by the IoT platform when the soft bus is created.

bus_name

String

HarmonyOS soft bus name, which must be unique in a single resource space.

group_id

String

ID of a device group.

app_id

String

Parameter description: resource space ID. This parameter is optional. If you have multiple resource spaces, you can use this parameter to specify the resource space to which the device group to create will belong. If this parameter is not specified, the device group to create will belong to the default resource space.

Value: The value can contain up to 36 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

status

String

HarmonyOS soft bus group information synchronization status.

  • Synchronized

  • Synchronizing

  • ToBeSynchronized

Example Requests

POST https://{endpoint}/v5/iot/{project_id}/harmony-soft-bus

{
  "bus_name" : "GroupA",
  "group_id" : "04ed32dc1b0025b52fe3c01a27c2b0a8",
  "app_id" : "jeQDJQZltU8iKgFFoW060F5SGZka"
}

Example Responses

Status code: 201

Created

{
  "bus_id" : "04ed32dc1b0025b52fe3c01a27c2babc",
  "bus_name" : "BusA",
  "app_id" : "jeQDJQZltU8iKgFFoW060F5SGZka",
  "group_id" : "04ed32dc1b0025b52fe3c01a27c2b0a8",
  "status" : "Synchronized"
}

Status Codes

Status Code

Description

201

Created

400

Bad Request

403

Forbidden

Error Codes

See Error Codes.