mqtt_create_subscription()
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mqtt_create_subscription()
- 1 Minute to read
Article summary
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Create new topic subscription, if there is a subscription, it generates an error.
Reference
Arguments
Only one callback function is needed (synchronous or asynchronous).
| Argument | Type | |
|---|---|---|
| topic | string | Topic name to remove |
| callback | function | Synchronous method |
| callback_async | function | Asynchronous method |
Return
None
Exceptions
RayaCommExistingSubscription
See the complete communications exceptions.
See the general exceptions.
Usage example
self.communication.mqtt_remove_subscription(topic="/topic_name", callback_async=self.cb_topic)
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