Does the Timestream action in an AWS IoT Core rule support multi-measure records?

Question

Hello re:Post Community,

I’m ingesting data from a medical device that publishes multiple correlated metrics (spo2, pulse, o2flow, etc.) to AWS IoT Core via MQTT. Currently, I use the Timestream action in my IoT rule, but it creates separate rows (one per measure) in Timestream.

According to the Timestream documentation on multi-measure records, grouping several measures into a single record can reduce storage costs, simplify queries, and improve performance—especially for correlated metrics. However, I haven’t found a way to configure multi-measure records directly in the IoT rule for Timestream.  [https://docs.aws.amazon.com/timestream/latest/developerguide/writes.html#writes.writing-data-multi-measure](https://docs.aws.amazon.com/timestream/latest/developerguide/writes.html#writes.writing-data-multi-measure)

Is there a direct way to insert multi-measure records from an IoT rule to Timestream without having to route the data through a Lambda function using the WriteRecords API?

Thank you in advance for any insights or guidance.

Balwanth · Answer

There a no direct way to insert multi-measure records from an IoT rule to Timestream. The recommended path will be Iot Rule --> Lambda --> Timestream.

Does the Timestream action in an AWS IoT Core rule support multi-measure records?

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