Encoding JSON array of an array of floats

[Jorcis]

Hi,

I'm developing Software for the nRF52840. I'm using NCS version 2.2.0 and Zephyr OS build v3.2.99-ncs1.

I try to encode a JSON message that will be send via MQTT.

I managed to encode, objects, strings and other primitives,

But now I'm blocked trying to encode a double array of floats.

The JSON message I'm trying to encode would be like this:

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{"observations":[[3.0, 0.20],[5.0, 0.30],[4.5, 0.25]]}

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

{"observations":[[3.0, 0.20],[5.0, 0.30],[4.5, 0.25]]}

I have tried to follow the JSON_OBJ_DESCR_ARRAY_ARRAY example, like in line 390 in "zephyr/data/json.h" but I think the example shown is for an array of an array of objects (not floats), and I could not manage to get the desired result, although I have tried with several options.

Could you please give me some advice? An example of JSON_OBJ_DESCR_ARRAY_ARRAY, for floats would be appreciated.

Thanks and regards,

Jordi.