• Documentation
• Device Connection Protocols
• MQTT-based Device Connection
• Reporting Data to Cloud
• Device Attributes, Measuring points, Events (Upstream)
• Delete Attributes

Delete Attributes

A device can publish a message to this topic to delete the attributes from the cloud.

Upstream

• Request TOPIC: /sys/{productKey}/{deviceKey}/thing/attribute/delete

• Reply TOPIC: /sys/{productKey}/{deviceKey}/thing/attribute/delete_reply

Sample Request Format

{
  "id": "123",
  "version": "1.0",
  "params": {
    "attributes": ["attr1", "attr2", "attr3"]
  },
  "method": "thing.attribute.delete"
}

Sample Response Format

{
  "id": "123",
  "code": 200,
  "data": {}
}

Request Parameter Description

Parameter	Type	Mandatory/Optional	Description
id	Long	Optional	The message ID. It is a reserved parameter that is reserved for future use.
version	String	Mandatory	The version of the protocol. The current version is 1.0.
params	List	Mandatory	The parameters used for deleting the attributes.
attributes	Array	Optional	The list of the device’s attributes’ identifiers. A request can carry a maximum of 200 attributes. When not specified, no attribute is deleted.
method	String	Mandatory	The request method.

Response Parameter Description

Parameter	Type	Mandatory/Optional	Description
code	Integer	Mandatory	The return code. “200” indicates that the requested operation is executed successfully.

Return Code

Return Code	Error Message	Explanation
1209	Attribute delete data format error	Invalid request format.