How do I retrieve Chirpstack event data using the REST API?



I couldn’t find it in the rest api interface after looking for it for a long time.

ChirpStack does not store that data (other than a small amount for recent history), you will want to set up an integration. MQTT and PostgreSQL are particularly popular, but there are many to choose from.

https://www.chirpstack.io/docs/chirpstack/integrations/index.html