thing.attr.unset

The thing.attr.unset command removes an attribute value from a thing.

TR50 Request

{
  "cmd": {
    "command": "thing.attr.unset",
    "params": {
      "thingKey": "mything",
      "key": "boardid"
    }
  }
}

Request Parameters

Name	Type	Required	Description
thingId	String	Yes*	Identifies the thing by id to which the attribute is to be associated.
thingKey	String		Identifies the thing by key to which the attribute is to be associated.
esn	String		ESN of the thing.
iccid	String		ICCID of the thing.
imei	String		IMEI of the thing.
imsi	String		IMSI of the thing.
meid	String		MEID of the thing.
*One of the above parameters is required to identify the thing. If omitted, the thingKey associated with your session will be used.
key	String	Yes	The key for the attribute that you want to unset
corrId	String		A correlation ID that can be used when querying to find related data objects.

If the command is sent successfully a success message is returned. Otherwise, an error and error message will be returned.

TR50 Response

{
  "cmd": {
    "success": true
  }
}

C API

// basic API
int tr50_thing_attr_unset(void *tr50, const char *key);
 
// extended API
int tr50_thing_attr_unset_ex(void *tr50, const char *key, void* optional_params, void** optional_reply, char** error_msg);

JAVA API

// Synchronous
int attributeUnset(String thingKey, String attrKey, Object response);
 
// Asynchronous
int attributeUnset(String thingKey, String attrKey, DwOpenReceiveActionListener recv, Object response);

Response Objects: StringReply, DwOpenResponse