Pushing Device Command Response Notifications

Typical Scenario

After an NA subscribes to device command response notifications (the notification type is commandRsp) on the IoT platform, the IoT platform sends a notification message to the NA when the IoT platform delivers a command to the device and the device returns a command response message (for example, the command execution succeeds or fails).

API Function

This API is used by the IoT platform to push notification messages to an NA that has subscribed to device command response 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 handleCommandRsp(NotifyCommandRspDTO body)
Class	PushMessageReceiver

Parameter Description

NotifyCommandRspDTO structure

Parameter	Mandatory or Optional	Type	Location	Description
notifyType	Mandatory	String	body	Indicates the notification type. The value is commandRsp.
header	Mandatory	CommandRspHeader	body	For details, see CommandRspHeader structure.
body	Mandatory	ObjectNode	body	Indicates the content of the message body of the response command.

CommandRspHeader structure

Parameter	Mandatory or Optional	Type	Location	Description
requestId	Mandatory	String(1-128)	body	Indicates the sequence number of the message, which uniquely identifies the message.
from	Mandatory	String(1-128)	body	Indicates the address of the message sender. Request initiated by a device: /devices/{deviceId} Request initiated by a device service: /devices/{deviceId}/services/{serviceId}
to	Mandatory	String(1-128)	body	Indicates the address of the message recipient. The value is that of from in the request, for example, the user ID of the NA.
deviceId	Mandatory	String	body	Identifies a device.
serviceType	Mandatory	String	body	Indicates the type of the service to which a command belongs.
method	Mandatory	String(1-128)	body	Indicates a stored response command, for example, INVITE-RSP.

Response Parameters

Status Code: 200 OK

Request Example

Method: POST
Request: {callbackUrl}
Header:
Content-Type:application/json
Body:
{
    "notifyType":"commandRsp",
    "header":{
        "requestId":"***********",
        "from":"***********",
        "to":"***********",
        "deviceId":"***********",
        "serviceType":"Camera",
        "method":"MUTE_COMMANDS"
    },
    "body":{

    }
}