mqtt "created_at" tag

[breckymorris]

Hi All,

Trying to do something like this:

{
"feeds": { "temperature": 1.23, "pressure": 4.56, "voltage": 9.54, "card": 7.89 },
"location": { "lat": 53.0, "lon": 54, "ele": 3.0 },
"created_at": "2022-03-21T16:10:00Z" <----- PROBLEMATIC
}

Not quite right. Not sure how to format it where the "created_at" tag gets respected. The rest of it works. I'm sending data that is queued up and then bulk transferred, so I need separate time stamps for each quantum of data when that occurred and not just when that data is uploaded to the server.

Thanks!
Brecky

[jwcooper]

MQTT doesn't support the created_at field (supports value, latitude, longitued, elevation).

You'll need to use the HTTP API in order to support sending custom created_at values in the iso8601 format.

Also, you can look into batch uploading for the API, and it will save bandwidth as well as setup/teardown time.

Docs here:
https://io.adafruit.com/api/docs/#creat ... ta-records