EMQSUBCLOSE – cancel a subscription to a message topic

Cancel a subscription to a topic.

Type	Syntax	Returned Result
Test	AT+EMQSUBCLOSE=?	OK   +EMQPUBOPEN:(0-7)
Read	AT+EMQSUBCLOSE?	OK or ERROR
Write	AT+EMQSUBCLOSE=(0-7) where: (0-7) is a subscribe index number in the range from 0, up to and including 7. You must have already subscribed to the selected index number, or the command will return an error.	OK   +EMQSUBCLOSE:(0-7),<status> where: (0-7) is the subscribe index number you selected from the range status is either: 0 – subscription cancelled successfully -1 – broker returned an unsubnack -2 – no topic was registered for the given index or ERROR – the command failed   +EMQSUBCLOSE:(0-7),<status>

Example

AT+EMQSUBCLOSE=0

OK

 

+EMQSUBCLOSE: 0,0

 

AT+EMQSUBOPEN?

OK

 

+EMQSUBOPEN topics:

0 null

1 SubscribeFromCloud1/AWSthingName

2 null

3 null

4 null

5 null

6 null

7 null