Questions about spot API

arodland · January 2023

I think that "spot set <id> lifetime_seconds=<n>" sets the spot's expiration to n seconds after the "set" command is run, and not n seconds after the original "spot add" was run. This makes sense. Can I have confirmation please?
It seems like there is some deduplication of spots internally — a "spot add" with the same rx_freq and callsign as an existing one will return the ID of the existing one instead of adding a new one. Could we know the exact rules that apply so that they can be documented in the wiki?

Thanks!

Eric-KE5DTO · January 2023

Confirmed. The lifetime_seconds just sets a field and a timestamp is created and compared to the original spot timestamp to know when to eliminate that spot.
The frequency/Callsign combo is considered unique. This note is in the source:

// Check to see if this Callsign-RXFreq combination is already in the DB
// If so - treat as a duplicate and simply update the fields in the spot

Both of these clarifications should go into the wiki description, and I'll do what I can to get them updated. Thanks for pointing this out.

Best Answer