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Help Center> IoT> API Reference> Northbound Python SDK API Reference> Service API List> Message Push> Pushing Device Service Information Change Notifications
Updated at: Feb 24, 2022 GMT+08:00

Pushing Device Service Information Change Notifications

Typical Scenario

After an NA subscribes to device service information change notifications (the notification type is serviceInfoChanged) on the IoT platform, the IoT platform sends a notification message to the NA when the IoT platform delivers a command to the device to modify the device service information.

API Function

This API is used by the IoT platform to push notification messages to an NA that has subscribed to device service information change notifications.

Note

  1. When Subscribing to Service Data of the IoT Platform, an NA must subscribe to the specified callback address in the API description. The server and port in the callback address are the public IP address and specified port of the NA server.
  2. An NA receives the content of a push message by inheriting the PushMessageReceiver class and rewriting the callback API.
  3. If the callback address is not the address of the NA, the NA must implement the original callback API. For details on the API content, see Message Push in the Huawei IoT Platform Northbound API Reference.

API Description

Callback URL

https://server:port/v1.0.0/messageReceiver

Callback API

def handleServiceInfoChanged(self)

Class

PushMessageReceiver

Parameter Description

The input parameter is request.json.

Parameter

Mandatory or Optional

Type

Location

Description

nsicDTO

Mandatory

NotifyServiceInfoChangedDTO

body

For details, see NotifyServiceInfoChangedDTO structure.

NotifyServiceInfoChangedDTO structure

Parameter

Mandatory or Optional

Type

Location

Description

notifyType

Mandatory

Enum

body

Indicates the notification type. The value is serviceInfoChanged.

deviceId

Mandatory

String

body

Uniquely identifies a device.

gatewayId

Mandatory

String

body

Uniquely identifies a gateway.

serviceId

Mandatory

String

body

Identifies a service.

serviceType

Mandatory

String

body

Indicates the service type.

serviceInfo

Mandatory

ServiceInfo

body

Indicates the device service information, which is incrementally reported. For details, see ServiceInfo structure.

ServiceInfo structure

Parameter

Mandatory or Optional

Type

Location

Description

muteCmds

Optional

List<String>

body

Indicates the device command list.

Response Parameters

Status Code: 200 OK

Request Example

Method: POST
request: {callbackUrl}
Header:
Content-Type:application/json
Body:
{
    "notifyType":"serviceInfoChanged",
    "deviceId":"*******",
    "serviceId":"*******",
    "serviceType":"*******",
    "gatewayId":"*******",
    "serviceInfo":{
        "muteCmds":"VIDEO_RECORD"
    }
}

Response Example

response:
Status Code: 200 OK

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