MQTT historic data

[tdb2024]

Hi,

is there a way to get historic data (json array) from mqtt broker  ?

The goal is to have multiple timestamped data in the same transaction.

I'm using JSON schema A but cannot figure out how to format json array message from device

Sparkplug B Driver seems a lot more complicated.Does it support this features ?

Thanks

[AdamWoodlandToo · Accepted solution]

Sparkplug B supports multiple time/values in the same payload, I'm pretty sure JSON A only supports a single timestamp with multiple values, I'll try to have a play later and see