Event

Device topology update

Topic: sys/product/{gateway_sn}/status

Direction: up

Method: update_topo

Data:

Column	Name	Type	constraint	Description
domain	Gateway device namespace	string		Reference to Product Support
type	Gateway device product type	int		Reference to Product Support
sub_type	Gateway sub-device product subtype	int		Reference to Product Support
device_secret	Gateway device key	text
nonce	nonce	text
thing_version	Thing model version of gateway device	text
sub_devices	Sub-device list	array	{"size": 1, "item_type": struct}
»sn	Sub-device serial number (SN)	text
»domain	Sub-device namespace	string		Reference to Product Support
»type	Sub-device product type	int		Reference to Product Support
»sub_type	Sub-device product subtype	int		Reference to Product Support
»index	Channel index connecting to the gateway device	string
»device_secret	Sub-device key	text
»nonce	nonce	text
»thing_version	Thing model version of sub-device	text

//sub_devices online  
{
   "tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
   "bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
   "method": "update_topo",
   "timestamp": 1234567890123,
   "data": {
   	"domain": "3",
   	"type": 119,
   	"sub_type": 0,
   	"device_secret": "secret",
   	"nonce": "nonce",
   	"thing_version": "1.1.2",
   	"sub_devices": [
   		{
   			"sn": "drone001",
   			"domain": "0",
   			"type": 60,
   			"sub_type": 0,
   			"index": "A",
   			"device_secret": "secret",
   			"nonce": "nonce",
   			"thing_version": "1.1.2"
   		}
   	]
   }
}

//sub_devices offline 
{
   "tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
   "bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
   "method": "update_topo",
   "timestamp": 1234567890123,
   "data": {
       "domain": "3",
       "type": 119,
       "sub_type": 0,
       "device_secret":"secret",
       "nonce":"nonce",
       "thing_version": "1.1.2",
       "sub_devices":[]
   }
} 

Topic: sys/product/{gateway_sn}/status_reply

Direction: down

Method: update_topo

Data:

Column	Name	Type	constraint	Description
result	Return code	int		Non-zero represents an error

Example:

{
	"bid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"data": {
		"result": 0
	},
	"tid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx",
	"timestamp": 1654070968655,
	"method": "update_topo"
}