Implement fallout strategy failed individual message #59
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nedimtokic
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Develop a fallout strategy for individual datastream messages with datastream interface mapping. Retention types include 'volatile,' stored in cache memory, and 'stored,' in the local database. The default retention value is 'discarded,' and the 'discard' message retention type does not save. Signed-off-by: Osman Hadzic <osman.hadzic@secomind.com>
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Signed-off-by: Osman Hadzic <osman.hadzic@secomind.com>
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Astarte Device SDK does not currently implement a fallout strategy for individual datastream messages.
In the 'Class AstarteMqttV1Transport,' the method 'SendIndividualValue' handles the 'MqttCommunicationException' by calling the method 'HandleDatastreamFailedPublish' for the stored message.
When the device loses connection with Astarte, failed individual datastream messages will be stored. The method of storage can be determined from a mapping of the interface field 'Retention.' Retention types include 'volatile,' which is stored in cache memory, and 'stored,' which is saved in the local database. The default retention value is 'discarded,' and the 'discard' message retention type does not save.
Testing:
Finally, failed messages will be sent to Astarte.