Help Center > > API Reference> Northbound Java SDK API Reference> Service API List> Message Push> Pushing Device Deletion Notifications

Pushing Device Deletion Notifications

Updated at: Aug 28, 2019 GMT+08:00

Typical Scenario

After an NA subscribes to device deletion notifications (the notification type is deviceDeleted) on the IoT platform, the IoT platform sends a notification message to the NA when the device is deleted from the IoT platform.

API Function

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

Note

1. When subscribing to platform service data, 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.

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

void handleDeviceDeleted(NotifyDeviceDeletedDTO body)

Class

PushMessageReceiver

Parameter Description

NotifyDeviceDeletedDTO structure

Parameter

Mandatory or Optional

Type

Location

Description

notifyType

Mandatory

String

body

Indicates the notification type. The value is deviceDeleted.

deviceId

Mandatory

String

body

Identifies a device.

gatewayId

Mandatory

String

body

Identifies a gateway. The gateway ID is the same as the device ID if the device is a directly connected device. If the device is a non-directly connected device, the gateway ID is the device ID of the directly connected device (that is, the gateway) with which it associates.

Response Parameters

Status Code: 200 OK

Request Example

Method: POST
Request: {callbackUrl}
Header:
Content-Type:application/json
Body:
{
    "notifyType":"deviceDeleted",
    "deviceId":"********************************",
    "gatewayId":"*************"
}

Response Example

Response:
Status Code: 200 OK

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