Is AWS IoT guarantee delivery

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This topic contains 1 reply, has 2 voices, and was last updated by  Jessica 1 year, 8 months ago.

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    I am starting with AWS IoT service with Raspberry Pi as a device. And I do not understand how I can make guarantee delivery for my data to AWS IoT MQTT service.

    There are two cases:

    The device has no Internet connection but powered on. In this case, I can use in-memory store (offline queue from AWS SDK library).

    The device is powered off. In this case, I am losing my data in RAM.

    How to save my data without running some database engine on Raspberry. Do you have some best practices?



    You will need to somehow save your data to disk to mitigate issue #2. The best practice is to use an established database system. SqLite is a very lightweight database. They are not that hard to use, give it a shot! If you really hate that idea, you could just save the data in json format to a text file. That works as well.

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