Event

Device topology update

Topic: thing/product/{gateway_sn}/events

Direction: up

Method: update_topo

Data:

Column	Name	Type	constraint	Description
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
»type	Sub-device product type	int		Reference to Product Support
»sub_type	Sub-device product subtype	int		Reference to Product Support
»device_secret	Sub-device key	text
»nonce	nonce	text
»thing_version	Thing model version of sub-device	text