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Store and Forward feature for Http web service call [message #1732085]

Thu, 12 May 2016 13:19

Praful CJ

Messages: 8
Registered: May 2016

Junior Member

Hi,

When Mqtt broker is not alive, i was able to utilize Eclipse Kura feature store and forward due to which data are not lost. Could you please provide guidance or insights on how i could use store and forward feature for http web service call, so that when the web server is down, data gets stored and sends when the web server comes live

Regards,
Praful

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Re: Store and Forward feature for Http web service call [message #1732156 is a reply to message #1732085]

Fri, 13 May 2016 04:24

Kiran Gopalan

Messages: 7
Registered: March 2016

Junior Member

Adding to Praful's query : Basically we would like to replace MQTT with HTTP as the messaging protocol and still use Data service,Cloud service etc. I know that MQTT requires a persistent connection and HTTP does not, so connection management might not be relevant. But we would like other features like store and forward etc.

[Updated on: Fri, 13 May 2016 04:25]

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Re: Store and Forward feature for Http web service call [message #1732506 is a reply to message #1732156]

Tue, 17 May 2016 19:07

David Woodard

Messages: 420
Registered: July 2014

Senior Member

Hello,

There is nothing native in Kura to support this, but you could probably re-use portions of the framework. What you are describing is replacing the MqttDataTransport with your own HttpDataTransport. The DataService and CloudService are fairly specific to MQTT, but you could map the publish/subscribe methods to GET/POST methods in your new transport layer. I don't know of anyone who has done this, but I would be happy to review any architecture designs you have come up with.

If persistence is all you need, you can use the DBService by itself. This provides access to the HSQL database that comes with Kura.

Thanks,
--Dave

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Re: Store and Forward feature for Http web service call [message #1732762 is a reply to message #1732506]

Fri, 20 May 2016 05:05

Kiran Gopalan

Messages: 7
Registered: March 2016

Junior Member

Hi Dave,

Thanks for the reply. We are definitely interested in adding this feature.

Do you have the corresponding architecture diagram for MQTT that we can refer?

Regards,
Kiran G

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